| Subject | Date Asked |
|
| AC | 9/13/2009 |
Q: I believe and have also heard several places recommend that to achieve best energy and cost ...
A: YES, There is a formula. Read the power consumption of the ac in KW written on its manufacturer's ...
|
| AC | 9/13/2009 |
Q: I believe and have also heard several places recommend that to achieve best energy and cost ...
A: "I also understand that cost saving is directly proportional to every degree temp is raised during ...
|
| Is the truth reasonable and understandable? | 9/12/2009 |
Q: I am disturb by the truth of human perception of life and world, that is different from what I ...
A: Let me begin by telling a paranle. There was once a caterpillar. He was healtht, and outraced all ...
|
| elements in human body | 9/2/2009 |
Q: Whats the amounts (grams, gallons, ect.) of all the elements that make up the human body?
A: Here is the rough proportion of various elements. 1 - Oxygen - 65% 2 - Carbon - 18% 3 - Hydrogen - ...
|
| windmills | 8/31/2009 |
Q: I am trying to make a windmill. Please look at my sketch. Can you think of an answer to my two ...
A: I think I had asked you once your age. Let me tell you the reason. Please do not be offended, for ...
|
| Do we have the same tastebud? | 8/25/2009 |
Q: I have a question to ask, when I saw my dog eating my biscuit, I was wondering, do dog have the same ...
A: The answer lies in evolution and genetics. All humans have "almost the same" genetic structure. very ...
|
| Research | 8/12/2009 |
Q: Hey Jayendra, hopefully you can help me. Your my last hope ;-). For a Stat's and Research Exam (on ...
A: I will try my best. I am busy now, so I will return later and add my reply here by Sunday. regards ...
|
| winged evolution. | 8/4/2009 |
Q: I have a question about the evolution of wings. If we evolve features to help us survive over ...
A: Of late I have had brushes with quite a few closet fundamentalists, who start thumping the bible the ...
|
| winged evolution. | 8/3/2009 |
Q: I have a question about the evolution of wings. If we evolve features to help us survive over ...
A: I hope you are not thinking that "all this evolution thing is bunk". People often forget that simply ...
|
| Wardenclyffe, Tunguska | 7/26/2009 |
Q: Did Wardenclyffe Cause Tunguska? 7:17 AM on the morning of June 30, 1908, a mysterious explosion ...
A: You are one of a type! you typed... "If you guys are so smart than why can’t you recreate his ...
|
| Wardenclyffe, Tunguska | 7/24/2009 |
Q: Did Wardenclyffe Cause Tunguska? 7:17 AM on the morning of June 30, 1908, a mysterious explosion ...
A: I NEVER SAID I AM SMART! Period. If you are angry over something, its NOT my problem, get that ...
|
| Wardenclyffe, Tunguska | 7/23/2009 |
Q: Did Wardenclyffe Cause Tunguska? 7:17 AM on the morning of June 30, 1908, a mysterious explosion ...
A: Why are people so taken in by these "Dr. Solar, Man of Atom" type conspiracy thories nowadays? 1000 ...
|
| engine | 7/17/2009 |
Q: Will you please help me with some suggestions on how to build my invention, the NoGas Engine? I ...
A: Mike! How old are you? There is a reason why I ask. Do tell. Why are you hellbent on using ...
|
| Ice Engine | 7/11/2009 |
Q: Will you please help me with some suggestions on how to build my invention, the ICE ENGINE? Here ...
A: I will give you an allegory. The Buddha was once sitting in a park when an accomplished yogi came to ...
|
| auto emissions | 5/24/2009 |
Q: Is it better (ecologically) to leave a car idling for 3 minutes, or to turn it off then back on in 3 ...
A: I believe people overdo this kind of stuff on ecology. 1 - Idling may be eating up fuel needlessly, ...
|
| homrwork | 5/19/2009 |
Q: how have people in canada benefited from nuclear energy?
A: Sitting in India, I simply cannot tell! What with governmental cover ups and the like? Specially ...
|
| electricity/steam pressure | 4/26/2009 |
Q: For a science project I am trying to generate electricity using a fresnel lens to boil water and ...
A: Sorry, You have taken on more than you can bite. making a turbine to work on steam is quite a task, ...
|
| rocky Shore | 3/26/2009 |
Q: When were Kina first discovered ?
A: That is the name of the Newzealand sea urchin, and Kina is a Maori name, so I guess we can never say ...
|
| sky | 3/24/2009 |
Q: why is the sky color blue? how steeped could a plane could flew? how the rainbow form after the ...
A: Jharine, 1 - Sky is blue because that is the color the air scatters the most (in all directions). ...
|
| perception in the brain - primarily colors | 3/22/2009 |
Q: Lately I've been wondering, how do I know that when I look at the grass, I'm seeing the same green ...
A: This is the 3rd time this question has been asked of me on this site. Unfortunately i cant re-trace ...
|
| Light wave absorbtion | 3/11/2009 |
Q: If the way humans see color is by an object absorbing all the other colors and reflecting the one ...
A: The answer is quite simple. When you look into the mirror, you see: 1 - your hair as black in color, ...
|
| brrnoulli | 2/7/2009 |
Q: In the steady flow, what is the factor that decreased the pressure and increased the velocity when ...
A: It is the observed rule that the sum total of the kinetic and static head in a flow system should ...
|
| science | 1/13/2009 |
Q: Why do scientists use models to study atoms and molecules
A: Marjorie, scientists are ordinary people, apart from certain specialized knowledge they have. Like ...
|
| earth | 1/6/2009 |
Q: IS earth is moving away from the sun is so ?what is the force driving the earth away is it 1)by ...
A: The earth's orbit isnt a "patthar ki lakeer"! It is a dynamic entity. However one has to understand ...
|
| air to water pressure | 12/15/2008 |
Q: ANSWER: Hi, Simple actually. Remember that for liquids - say water- static pressure head is directly ...
A: Hey buddy, please do rate me! That is what encourages experts to do the needful! It does not ...
|
| air to water pressure | 12/15/2008 |
Q: ANSWER: Hi, Simple actually. Remember that for liquids - say water- static pressure head is directly ...
A: No problem Tristan, but you will also understand that there is a limit to scrolling down on ...
|
| air pressure vs water pressure | 11/18/2008 |
Q: they do not give me a enough information
A: >>"they do not give me a enough information".. what am i to make of this? Still I will make an ...
|
| hello | 11/12/2008 |
Q: i wanted to know.. whats the diffrence between conduction,convection and radiation?which of these ...
A: I normally dont do homework...but ... The difference is chiefly in the way heat gets transferred. ...
|
| Color/ science | 11/11/2008 |
Q: please help me i am 11 yrs old and a bit confused with my homework. her is the question- Abi is ...
A: 1 - In the Blue room, all incident light (reflected off walls will be blue). In this case, the green ...
|
| Science fair, 6th grade. | 10/23/2008 |
Q: Which lubricant is best for skateboard bearings? I want to ask what I should do to find a greasy, NO ...
A: Well Well! Nice to meet a self made man. However like all things heady (and intelligence is heady, ...
|
| physical science | 10/22/2008 |
Q: Does different types of a balls affect how high they bounce?
A: Yes Devlon, surely! A 'tough' ball will bounce higher than a not so tough one, when both are ...
|
| Multiple Chains of motors | 10/4/2008 |
Q: From the response that I gave me, I have made corrections to my invention concept and design. I have ...
A: Did i ever answer any question on this issue earlier? I feel not! It appears you are cross with me ...
|
| Going for Grey | 9/26/2008 |
Q: Is grey really a colour? ANSWER: Hi Steven, For some reason, I believe that is a loaded question. I ...
A: That's fine...but having typed in that much, would have loved to hear whether the reply swung the ...
|
| Going for Grey | 9/26/2008 |
Q: Is grey really a colour?
A: For some reason, I believe that is a loaded question. I sense smething "behind" the question. I may ...
|
| chicken/egg question | 9/8/2008 |
Q: I read your opinion about which came first, the chicken or the egg. You questioned sincerity. Well, ...
A: Diane, Answering such questions always entails "bad ratings"..but i am willing to risk. You see, ...
|
| Infrared signal | 9/2/2008 |
Q: how to covert infrared signal to radio signal? ANSWER: Hi, Your question is quite incomplete. If ...
A: however the icing would have been in your comments! You have not uttered a word! Which leaves me ...
|
| Infrared signal | 9/1/2008 |
Q: how to covert infrared signal to radio signal? ANSWER: Hi, Your question is quite incomplete. If ...
A: See, You should have asked it straight away. For your answer, go directly to the end of the answer ...
|
| Infrared signal | 8/28/2008 |
Q: how to covert infrared signal to radio signal?
A: Your question is quite incomplete. If you want to convert a PwM (pulse width modulated) infrared ...
|
| science | 8/28/2008 |
Q: why don't cotton balls make water that has a high surface tension overflow??
A: ee, You must never ask vague questions! Overflow over what? 1 - Is the vessel into which you put ...
|
| Can we see the world and life? | 8/20/2008 |
Q: i have the same question to ask you... 1.http://www.cycleback.com/eyephysiology.html Can you tell ...
A: I think i said all there is to be said on this topic! What is to be gained by repeating a question ...
|
| Can we see the world and life? | 8/20/2008 |
Q: i have the same question to ask you... 1.http://www.cycleback.com/eyephysiology.html Can you tell ...
A: Again i will resort to the image of the caterpillar that forgot how to walk when it tried to analyse ...
|
| converting radio signals | 7/31/2008 |
Q: I have heard about converting radio signals into optical signals and i was wondering if you could ...
A: yes! It is difficult to modulate any waveform the frequency of which is too close to the frequency ...
|
| converting radio signals | 7/30/2008 |
Q: I have heard about converting radio signals into optical signals and i was wondering if you could ...
A: No Alice! I meant something slightly different. [Also understand that frequency limitations in ...
|
| converting radio signals | 7/24/2008 |
Q: I have heard about converting radio signals into optical signals and i was wondering if you could ...
A: I do not know what your qualifications are, so i am going to try and give a "mixed" answer. Meaning, ...
|
| Do our brain interpret the same thing similarly? | 7/24/2008 |
Q: -How do I know what they feel like? how can I possible know they will feel the same thing as me when ...
A: Rambo Rambo Rambo!!! You are beginning to repeat yourself dear! I already said all humans think ...
|
| What is colour? | 7/15/2008 |
Q: -what is colour? Where does the colour I see come from? Is colour just a perception in mind? how is ...
A: It is to you i believe i said "one must ask only those questions tha tcan yield meaningful answers! ...
|
| What is colour? | 7/14/2008 |
Q: -what is colour? Where does the colour I see come from? Is colour just a perception in mind? how is ...
A: Rambo! Man what has gotten into you? I had come up with these questions in first year of my ...
|
| Do our senses really perceive the real world? | 7/10/2008 |
Q: I have read article from some website...and I have some issue concerning the existence of science ...
A: I am quite busy this time, so i think you will have to let this one go! I am aware you wont mind ...
|
| Do our senses really perceive the real world? | 7/9/2008 |
Q: I have read article from some website...and I have some issue concerning the existence of science ...
A: Firstly the last part of my answer. [ Both are right in their own ways. For they are describing a ...
|
| Do our senses really perceive the real world? | 7/8/2008 |
Q: I have read article from some website...and I have some issue concerning the existence of science ...
A: Rambo! Dont re-invent the wheel! The problem with middle eastern religions (christianity / judaism / ...
|
| chemistry-equilibrium | 6/29/2008 |
Q: please give me the answer for this-if the activation energy of a certain reaction is 15kJ/mol and ...
A: Honestly, this is outside my province. [refer:-http://en.wikipedia.org/wiki/Activation_energy]. But ...
|
| Is the world upside down? | 6/29/2008 |
Q: I understand what we see is actually in upside down, but our retina manage to turn it back to what ...
A: I was about to reject the question as a rude non-serious one, but something tells me there is a ...
|
| steroids | 6/5/2008 |
Q: how do steroids affects a human body organ system?
A: Raymond! I havent the foggiest on that one! But having said that, like don quixote i will agree to ...
|
| 5/13/2008 | 5/14/2008 |
Q: I've read about mankind's past attempts to change the weather in our favor. As in entering chemicals ...
A: Bobby, The use of silver iodide to trigger rain has been in practice for quite some time. As silver ...
|
| 5/11/2008 | 5/11/2008 |
Q: (This not schoolwork related by the way.) What kind of conditions must exist to have different ...
A: Bobby .."I trust you" dear! :) Is there anything else to do But that? 1 - Normally precipitation ...
|
| cast iron properties | 4/2/2008 |
Q: thermal conductivities of cast iron of 4./. corbon at different temperatures
A: Raju, You are an expert in being as brief as possible! You did not even form the question fully. I ...
|
| air | 3/30/2008 |
Q: Does air get thin or thick depnding on altitude?
A: It gets thin depending on altitude. here is a link:- 1 - ...
|
| Rock and Water Cycles | 3/2/2008 |
Q: I don't understand what the rock and water cycles have in common and what forces drive these cycles.
A: refer:- rock cycle:- http://www.cotf.edu/ete/modules/msese/earthsysflr/rock.html refer:- water ...
|
| science | 2/24/2008 |
Q: why does the smell of perfume spread from one end of the room to the other
A: That is because the molecules of the mixture (or bouquet) of compounds that we call "perfume", are ...
|
| Melting Ice | 2/23/2008 |
Q: I'm doing a science project on what materials are best and worst to use for melting ice. Can you ...
A: It is all about "putting heat into" the ice, to allow quick phase transition from water to ice. If ...
|
| science report | 2/19/2008 |
Q: Separating a Mixture Introduction A mixture is an impure substance, which means it had a variable ...
A: It is reasonably well written. I liked the part where salt was also found in the sand! Very ...
|
| Air Pressure vs Water Pressure | 1/10/2008 |
Q: I am trying to figure out an interseting way to show how air pressure and water pressure work. I ...
A: You have asked much in a single line!! Your hypthesis should be Bernoulli's principle which ...
|
| hellppp :( | 12/17/2007 |
Q: im doing a science fair project and i need help finding the information. I've been looking for the ...
A: Please go thru this link:- http://en.wikipedia.org/wiki/Hair_dye#Problems_related_to_coloring_hair ...
|
| acid base titration | 11/24/2007 |
Q: I have some coursework, and I have to plan an acid base titration, and the sizes of apparatus I ...
A: Sorry for the inordinate delay! Was busy with bread & butter issues. (I handle customer salaries in ...
|
| Ice | 11/20/2007 |
Q: It appears that ice will melt fast in tea than soda? Why?
A: Cindy, The same question has been asked of me, some time back. On 11/04/2007 ithink. ref: link:- ...
|
| geography | 11/2/2007 |
Q: why sea water is salty?
A: Arun, All the chemical elements found in the solar system beyond hydrogen come from stars that went ...
|
| Science | 10/24/2007 |
Q: How would you measure the volume of a sponge, and what have you actually measured by your method?
A: 1 - Take some water in a wide beaker of cylindrical section. 2 - Pour in 1 litre exact, of ...
|
| silver polish | 10/23/2007 |
Q: what is the purpose or role of the NaHCO3
A: I am really not sure Yusuke! One cant know all! But going by the role of various "sodas" in real ...
|
| Electronic | 10/22/2007 |
Q: Why fan make sound when it works in an inverter?
A: Normally a fan working on regular ac supply gives a soft humming sound (50 hertz) from the stampings ...
|
| Science | 10/14/2007 |
Q: hey. I'm doing a science essay and the question is .. "Would you rather swim in saltwater or ...
A: Without going into the "depths" of the question, the off the cuff answer should be freshwater! ...
|
| science | 10/11/2007 |
Q: sample:iron and sailt! Classify as:substance or mixture? identify as:element, compound, ...
A: I generally dont answer homework! But just this once... 1 - Iron, substance, element, homogenous ...
|
| Help! | 10/9/2007 |
Q: i have looked EVERY WHERE for a great challenging fun science experiment and there is absolutely no ...
A: I need to think this out. I need time. That is why there was this delay of 2-3 days. Could you ...
|
| Football | 9/26/2007 |
Q: does a spiralling football get more distance than a non spiraling one
A: This question was rephrased for me by another person on 3/11/2006. pls look it up at ...
|
| i have a meteor | 9/18/2007 |
Q: i found a meteor and i am wondering if any one knows where i can sell it. it is verry large?
A: If you are in the US, the smithsonian institute would be very interested! And so would NASA. But if ...
|
| What is the highest radio frequency used for radio astronomy? | 8/31/2007 |
Q: What is the highest radio frequency used for radio astronomy? According to the link below, it is ...
A: Green, Iam no radi-astronomer, however i went thru page 11 thru 18, and it becomes fairly obvious. ...
|
| Time Travel | 8/8/2007 |
Q: Do you happen to know anything about time travel?
A: Asimov has done a lot of writing about taime travel, in his 3 novels centered around Hari Seldon, ...
|
| Benzoic acid | 8/6/2007 |
Q: How can you test benzoic acid to see if it is pure? Thankyou
A: The best test would be to subject the anhydrous benzoic acid with no liquid contamination, to ...
|
| Soda Fizz | 8/4/2007 |
Q: why does soda fizz when regular ice (as in putting water in an ice tray and leaving it in the ...
A: Actually there are two reasons! 1 - Any gas that is in "solution" in a liquid, like C02 in water, ...
|
| Growing red crystals of sulfur | 7/30/2007 |
Q: Do you know how one might produce red sulfur crystals? The only method I know of is to heat the ...
A: Sorry for the delay in answering, i was busy with "other things". Also i am NOT a chemistry expert! ...
|
| h2o electrolysis | 7/25/2007 |
Q: Would it be possible to use this as an energy source for cars by installing a second alternator (AC ...
A: Jeremy! How old are you? I suspect you are of the romantic age (13 trhu early 20s)! I remember ...
|
| 2012 | 7/24/2007 |
Q: Well I'm not sure if this fits the category but this is the only one i could find about this. So ...
A: Hey Gene, is it you? I have a hunch it is! Anyways! Armageddon! First things first! 1 - Armageddon ...
|
| 2012 | 7/23/2007 |
Q: Well I'm not sure if this fits the category but this is the only one i could find about this. So ...
A: If this is synchronicity..(a phenomenon where any topic one discusses, surfaces in another ...
|
| How long does it take a solar white dwarf to become perceptibly cool? | 7/21/2007 |
Q: After the sun becomes a white dwarf, how long will it take to cool to a black dwarf whose internal ...
A: Good question. The internal temperatures of white dwarf stars are very high, though not sufficient ...
|
| Revolution Counter | 7/11/2007 |
Q: i'm working on a project to count the revolutions of a wheel. However, i cant find a suitable wheel ...
A: Hmmm.. 15 cm = 6 inches = 1/2 a foot. 20 cm is approx 8 inches. (2.5 cm / inch approx). You would ...
|
| science | 6/2/2007 |
Q: if the net force acting on a stationary object is zero, is the object moving?
A: 1 - A net non-zero force implies an acceleration in the direction of the imbalance. 2 - Consequently ...
|
| chemistry | 5/24/2007 |
Q: how does hydrogen & oxygen shares electron to form water please tell what's the polar nature of ...
A: Aabir, Sorry for the late answer...I was searching for a very old answer (detailed one) on this ...
|
| van allen radiation belt | 5/22/2007 |
Q: can the van Allen radiation belt be destroyed by the solar winds that are being emanated from the ...
A: No ! Because, the radiation belts (all planets with magnetic fields have them, jupiter's being the ...
|
| technique | 5/14/2007 |
Q: How does science deal with subjectivitey? if you had a formula that takes general info to prove God ...
A: I have picked this up rom the question pool. Richard, I think that there is an inherent ...
|
| salt water vs regular water | 5/7/2007 |
Q: Which evaporates faster - salt water or regular tap water?
A: Water with no salt in it evaporates faster. The reason is 1 - evaporation takes place only at the ...
|
| colors absorbing and reflecting sunlight | 4/22/2007 |
Q: how does the color of an object affect how it absorbs and reflects sunlight
A: That should be simple enough! The color we do "see", of any object, actually IS the color it ...
|
| science | 4/19/2007 |
Q: Why does an ice cube melt faster in water than in tea and coke when all drinks are at room temp and ...
A: A good question. Water than in tea and coke when all drinks are at room temp and of equal ...
|
| Tides | 4/7/2007 |
Q: I thought I understood tides, the moon, gravity, etc. but i don't understand why the tides in ...
A: first of all sorry for the late answer, (things beyond my control really). Jim, My answer is ...
|
| Cotton ball saturation time in different liquids | 3/24/2007 |
Q: I am helping my 10 year old with a science project on the saturation time of cotton balls in ...
A: Mrs.Laura, Nice to know you are helping your son personally with his stuff! Yes it is sometimes ...
|
| Coca Cola Glass | 3/24/2007 |
Q: It's the craziest thing, and I think Coca-Cola knows what they did on purpose! haha. I have a set ...
A: I noticed this question has been around in the pool for a long time. Wonder how it did not get any ...
|
| Opposites | 3/18/2007 |
Q: What is the opposite of Water? and if it is fire, how is this so? and where do I get this ...
A: Hey Anthony, I do not know your age...but.. I wonder what gave you that idea. If water is the ...
|
| sciemce fair. | 3/6/2007 |
Q: My name is Bob and i was wondering if you could help me out. I am doing a project on how many ways ...
A: Frankly Bob, i do not know who invented it. In my two years or so, of career with allexperts, i have ...
|
| Science work including Fundumental Forces. | 1/12/2007 |
Q: 1) What are fundamental forces and why are they forces often called fundamental or basic forces? ...
A: Though i am an expert on the site, to be frnak one can never know all..especially guys like me who ...
|
| Moments | 1/11/2007 |
Q: Why is it that if you put 2 different masses on a pivotted beam (balance beam), equidistant from the ...
A: Sorry Sorry Sorry and upteen Sorries!! Was held up in bread & butter issues.. Maria, your question ...
|
| fire in space | 1/2/2007 |
Q: I would like to know what would happen if someone light a fire in space. I suppose that it should ...
A: 1 - True, there cannot be a real fire in absolute space, due to a loack of oxygen. But fires do ...
|
| seasons | 12/29/2006 |
Q: Why are the seasons on either side of a solstice not equal, in terms of length and temperature? For ...
A: To tell you sincerely, I havent the foggiest!! Meaning i had never occasion to think along those ...
|
| Have you see Matrix the movie? | 12/20/2006 |
Q: I have some questions I wanted to ask to you. 1.Do you believe in Matrix?Is it just a fiction or ...
A: Rambo! First and foremost...Never disappear in alice's (or your own for that matter..) wonderland, ...
|
| Why do I see different color in the dark? | 12/11/2006 |
Q: I have a question I wanted to ask you.When I was the looking at a black file in the darker room,it ...
A: Joe, you have to get fundamentals correct. A truly black object will appear black under all lighting ...
|
| the golden ratio | 12/11/2006 |
Q: how is the golden ratio connected to a persons height and total waist height?
A: The golden ratio is a bit hyped up dont you think? This is because humans tend to "look for ...
|
| Egg drop | 12/6/2006 |
Q: For a science project at school, me and my partner need to be able to drop and egg out of a one ...
A: The best way when no rules are specified is to para drop the egg. read my previous answer at this ...
|
| Do we see the same colour as each other? | 12/5/2006 |
Q: Beside colourblindness,is there any other evidence to prove that peoples see the same colour ...
A: Congratulations! Very very few people have bothered to even think along these fundamental lines! You ...
|
| Life’s Majesty and Our Human Challenge | 12/4/2006 |
Q: Can you please help check these questions to see if my answers are right. Thanks 1. By studying ...
A: ok! [note in 8, you answered b, it should have been a]. [note in 12, you answered c, it should have ...
|
| big numbers in popular science | 12/2/2006 |
Q: This was quoted in Bill Bryson's 'A Short History of Nearly Everything,' from 'Microcosmos' ...
A: 1 - The bacterium multiplication problem! Normally in such processes, there are other inhibiting ...
|
| science question | 11/30/2006 |
Q: If i was somehow able to get enough sea sponges to fill the ocean, would the sea level rise/fall or ...
A: Russell, I chose to answer this question as it involves issues linked with "perception" about ...
|
| Encyclopedia of H2o Electrolysis Splitting Water | 11/29/2006 |
Q: do you have a encyclopedia that tells you more about H2o Electorlysis Splitting Water?
A: David! As i always keep saying, i am weak in all matters that one can "look up somewhere"! Sorry ...
|
| Jet Streams | 11/27/2006 |
Q: I live in Colorado. When I see a jet stream or a high flying aircraft, how can I tell if it is ...
A: Jo, if you have been observant, you will have observed that normally what one sees is a twin trail. ...
|
| optometry | 11/23/2006 |
Q: Does television damage peoples eyesight, we are aware television strains the eye if watched for to ...
A: ref:- http://www.eyecareindia.com/Spectrum.asp?id=1 1 - Fact:- Extensive computer usage can cause ...
|
| Earth Science (?) | 11/4/2006 |
Q: My son lives in New Zealand. I am in the UK Is there a point during the day when we can BOTH see ...
A: technically speaking, unless one is in the polar regions, there are no two places on earth where ...
|
| Rain | 9/26/2006 |
Q: I was wondering if there was a name for the smell of rain and what it is?
A: My answer was going to be.. "It is ozone..i remember my father telling me that when i was young".. ...
|
| related to space | 9/23/2006 |
Q: How its possible to create zero gravity in the earth?explain.
A: It is an old trick. Nasa and the soviet union both "made zero gravity" in one of two ways. 1 - Fly a ...
|
| science | 9/13/2006 |
Q: A sub title for "science and technology sustainable development useful for the society".
A: Your question is not very clear. Like a japanese student from singapore once did, are you asking me ...
|
| Infa-Red | 9/10/2006 |
Q: Does a television screen emit infa-red radiation? Does a light bulb? Does a hot iron?
A: Technically speaking, ALL objects emit infrared rays. Even "dead" inanimate objects. As emission ...
|
| 6th grade ? | 9/8/2006 |
Q: What are the 3 branches of science
A: That is a rather "open" question! which 3 would you want it to be? 1 - Biology, 2 - Physics, 3 - ...
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| Close ur Eyes ? | 9/7/2006 |
Q: what is the color seen when we close our eyes ? and why ? can we actually feel the images infront of ...
A: Anand! What we do see after we close our eyes depends a lot on where we are. If you are in bright ...
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| astronomical physics | 9/6/2006 |
Q: since the univese is receeding with a velocity doesnt that affect our calculations in physics.
A: It all depends on "what" calculations one is doing! For example, a guy firing a sports rifle does ...
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| earths curvature | 9/2/2006 |
Q: Is there anywhere in the world where a person can actually see the curvature of the earth with the ...
A: Questions must always be asked judiciously. Never ask an open ended question. Your question is one ...
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| freezing water | 8/30/2006 |
Q: Why when water freezes does it expand if the process of a liquid becoming a solid dictates that the ...
A: No! That is NOT gospel truth! The process only dictates that rms velocity of molecules / atoms ...
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| Egg Drop Experiment | 8/28/2006 |
Q: I must drop an egg from 2.5 meters and not have it break. I must only use 1 paper cup, scotch tape, ...
A: The beast thing for you would be to para-drop the egg! you see, one can fashion an effective crude ...
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| Simple question | 8/21/2006 |
Q: Ive been looking through scientific articles on phyisiology just out of my own interest. My ...
A: Are you saying... 1 - group a:- 18 reps of deadlift each week. 2 - group b:- 30 reps of deadlift ...
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| science | 8/13/2006 |
Q: If Sunlight forms the primary energy source and if sunlight is composed of many different colours ...
A: Sarah, No, The colors that get used most are those that are "NOT REFLECTED". Consequently, the ...
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| electricity and home appliances | 8/9/2006 |
Q: Good Day Sir. My question is; is there a formula for computing energy usage of an appliance, ...
A: ofcourse there is! A WATT is a power unit. (rate of doing work). 1 - 1 joule/sec is 1 watt. or 2 - 1 ...
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| weight loss | 7/28/2006 |
Q: I saw an experiment on TV to see if a person eating a quarter-pounder burger increased their own ...
A: 1 - Did they use the same weighing scale? [I think may be not]. The least count of larger scales ...
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| Walking | 7/27/2006 |
Q: Is it true that walking is nothing much but controlled falling?
A: Kevin, i do not know really about that. But controlled falling would imply an eventual supine ...
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| Theory or phyisics | 7/27/2006 |
Q: What goes up an dnever comes down?
A: .. impossible questions require impossible answers.. 1 - Just point a beam of light "up"! That would ...
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| Science | 7/25/2006 |
Q: I REALLY need help with these questions. Can you help me please? 1)When a sound from a source is ...
A: 1 - That air layers higher up are more rarefied. As sound travels faster at sea-level in denser air, ...
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| Science | 7/24/2006 |
Q: I have a few questions: 1)In a gasoline engine, the area in the cylinder head where the air and ...
A: You know i hate home work! (god knows how i passed out of school) !! any way i will help you this ...
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| pond ecosystem [which of the following would occur | 6/19/2006 |
Q: the populations present in a forest ecosystem compared to those in a coral-reef ecosystem are? very ...
A: I must warn you i am NOT an expert on this TOPIC... But having said that ..i will proceed to answer ...
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| energy | 6/10/2006 |
Q: from where does the body get the energy it needs to function? individual atoms of ...
A: It is the last! The body gets its energy ONLY when chemical processes are executed in the ...
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| 4 elements of weather | 6/4/2006 |
Q: which of these are the 4 elements of weather? temperature,humidity,barametric pressure, or cloud ...
A: I do hope you would ask me something apart from dull homework!! :) But i somehow think you genuinely ...
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| physics | 5/28/2006 |
Q: why aren't birds electocuted when they perch on high tension wires?
A: Good question! Birds perching on high tension wires (440 volt Delta connected line, to 11 kv thru ...
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| black holes | 5/27/2006 |
Q: First,let me say,I'm not a kid,I'm a wee bit older but I've always had a general interest in these ...
A: Nice george! Technically when the disciple is ready, a guru should appear!! :) Hope i am the ...
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| about trees | 5/25/2006 |
Q: Iam six and three quarter years old and would like to know how trees give us oxygen please
A: Sorry first of all for answering late! I had work to attend to! (office you know). Now to your ...
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| rain forests | 5/17/2006 |
Q: The canopy of a rain forest is an extremely dense layer of vines, treetops, and plants. Why do you ...
A: The main answer is heat and humidity! The heat and humidity firstly breed huge dense forests. The ...
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| Im homeschooled and I really need help with this....thank you! | 5/12/2006 |
Q: 1. Which of the following takes place in the combustion chamber of a gas turbine engine? A. Fuel oil ...
A: I accept your request.. 1 - This is a strange question as both b and c hold true!! In the combustion ...
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| Do people learn better by listening or reading | 4/12/2006 |
Q: i need some help doing my project?
A: Sierra, the learning process is a very complex one. It is often associative, as memorizing and ...
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| can u | 4/6/2006 |
Q: can u answer a question to me about sound Answer - Hi ! yes brook, but what is the question? ...
A: I have a lingering suspicion i have been conned!! :) I generally never answer what looks like ...
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| Mechanics | 3/30/2006 |
Q: I did know where to go for mechanics in science I hope you could help me with these questions 1. ...
A: I never answer homework questions..but you appear to be in some difficulty, so i though why not be ...
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| Physical Science | 3/25/2006 |
Q: What exaclty happens when the elements barium chloride and sodium sulfate combine?
A: 1 - The reaction is ...(both are clear solutions).. Ba(Cl)2 + (Na)2SO4 = BaSO4 + 2(NaCl) where ...
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| weight vs mass | 3/16/2006 |
Q: A jar contains 50 mosquitoes. When the mosquitoes are all flying around in the jar, does the jar ...
A: Tamara a very "deep" question. 1 - As long as a mosquito is "pushing against" something (air in ...
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| Aerodynamics Of an American Football | 3/11/2006 |
Q: Hey, I was wondering could you help me out with a question i have. Im trying to figure out the ...
A: this same question (under same heading, but paraphrased differently) was asked of me as under: - ...
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| when will i be able to get... | 2/26/2006 |
Q: when will i be able to get my brain downloaded and put in a robotic avatar body and become cyberized ...
A: No time soon! because the brain essentially interacts with the "outer world" thru interfaces that we ...
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| Biology | 2/22/2006 |
Q: Why does fertilization stop in sea urchins when you add acetic acid? (part of lab write up...ive ...
A: Anna, using the search string "sea urchin sperm acidity" in yahoo. i netted this site in 2 minutes! ...
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| Weight of Sunshine | 2/10/2006 |
Q: Is sunshine weightless?
A: As per fundamentals, sunlight consists of a class of particles called Bosons. ref:- ...
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| sound waves | 2/6/2006 |
Q: Why does the pitch of sound change when there is more water in a cup?
A: There are many factors. Asssuming that the cup is on a "insulating base", such as a rubber mat or ...
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| Science Fair Project | 1/31/2006 |
Q: I'm in the 7th grade and I'm doing a science fair project. My topic is "How does cell phone ...
A: Sana, here is a link explaining why people think cell phones COULD damage brains. ...
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| Science Fair Project | 1/31/2006 |
Q: I'm in the 7th grade and I'm doing a science fair project. My topic is "How does cell phone ...
A: Sana, here is a link explaining why people think cell phones COULD damage brains. ...
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| Science, Medicine and Technology | 1/29/2006 |
Q: What is the relevance of Science, Medicine and Technology to the development of Barbadian society?
A: By barbadian society do you mean people from barbados? As they are referred to as such! What i ...
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| Fire or Smoke | 1/28/2006 |
Q: In the case of a fire, what essentially comes first--the smoke or the fire?
A: wonder why you had to rephrase that simple question and repost it!! i am perforce doing cut paste ...
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| physical science | 1/24/2006 |
Q: how does the volume of a gas change as the pressure you exert on it increases? i got this as a ...
A: Why have such questions to always demand answers on a CRASH basis? I wonder.. You did not tell me ...
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| science fair project | 1/17/2006 |
Q: My 9 year old has chosen a science fair project of "Will ice melt faster in dark or light plastic". ...
A: I wouldnt know how strong is the sunlight in your part of the world. If it IS strong, just place a ...
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| colors | 1/12/2006 |
Q: Is black the absence of color?
A: yes and no! You see, actually it is TRULY an absence of Color, if you limit your criteria to the ...
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| Earth Curvature | 12/18/2005 |
Q: How far is the horizon for a 6 foot tall man standing at the seashore? Is there a formula to ...
A: Yes there is!! In fact i had calculated that one long ago. Yoi will need to have studied sines and ...
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| science projects | 12/12/2005 |
Q: i have a science project due on the 17th of january and i need some help. i would like to do ...
A: I have an interesting idea. See if you can put it into use. 1 - Have a source of abundant "slightly ...
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| nanofoam | 12/1/2005 |
Q: I have a question that demand you to answer : -what is dried in sol-gel with air that use for ...
A: What is dried is the solvent in the sol-gel! which in case of carbon nanofoam happens to be ...
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| aerodynamics of a football | 11/28/2005 |
Q: How much difference does a spiraling motion of a football make on the distance of the throw compared ...
A: There is a problem i am facing here.. Are you referring to the spherical ball or the elongated one ...
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| Force | 11/24/2005 |
Q: A force can : * Cause an object to move * Change the speed of an object * Change the weight of an ...
A: A force:- 1 - Cause an object to move:- True. 2 - Change the speed of an object True. 3 - ...
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| Force | 11/24/2005 |
Q: A force is applied to a rolling ball in the same direction as its motion. What is a possible effect ...
A: 1 - Slows down the rolling ball false. 2 - Speeds up the rolling ball True, provided the ...
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| Force | 11/24/2005 |
Q: The rollers on a roller-skate reduces what kind of force?
A: Without the rollers, the skateboard would face SATATIC FRICTION at the start of its slide, and ...
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| nature | 11/23/2005 |
Q: Why is snow coloured white?
A: Actually, snow is a collection of relatively loosely packed ice srystals. (It is a diffuse source of ...
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| general | 10/24/2005 |
Q: Why are cloudy nights warm?
A: A nice question. Generally, at all times, the earth's surface is recieving radiation from space, and ...
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| general | 10/24/2005 |
Q: Why does water get cooled in earthen pots?
A: That is because the porous walls of the pot hold water that CAN BE EVAPORATED! As the water from ...
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| medicalscience | 10/23/2005 |
Q: what are the advancements in the technology of medicine or medical field
A: Preetam, Why! There are so many!! 1 - NMR (Nuclear Magnetic Resonance) technique for imaging the ...
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| earth´s speed | 10/19/2005 |
Q: 1. What is the Earth´s speed through space (around the Sun, that is)? 2. How fast does the Earth ...
A: I dont know in which class you study, so i will give you as simple an answer as possible. 1 - the ...
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| Help! | 10/18/2005 |
Q: How do I find an R-factor?
A: To answer in asimovian manner..("last question" by asimov)..Not enough data to answer question ...
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| science | 10/17/2005 |
Q: what is science
A: I could answer the question at some length..which i will, but if you want it "from the horses ...
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| How do we see the colour of a red book? | 10/2/2005 |
Q: I have to give a presentation on 'How do we see the colour of a red book?' Please can you help me? ...
A: That is indeed the right approach. Any color we see is OFCOURSE the color of the light emitted by ...
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| science | 9/28/2005 |
Q: what is the definition of negative charge and how would i explain it
A: 1 - Teresa, the unit of charge is the coulomb. 2 - electric field INTENSITY acting on a coulomb of ...
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| sound | 9/15/2005 |
Q: The pupil finds a image blurred.Give two ways in which the image could be made sharper
A: Chloe, sometimes this sort of questions are to be answered in context of what has preceded the ...
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| Science | 9/14/2005 |
Q: If I start out with 2 femtograms of Nobelium, how much would I have left in 58 minutes?
A: . this is the danger of asking incomplete questions!! Nobelium has various isotopes. 1 - Its most ...
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| science project lab report | 8/21/2005 |
Q: i am in 7th grade and have to do a report on balloon powered cars. i have already built my car(2, ...
A: Sorry for the delay, i had to leave rather abruptly due to a very personal matter, for about 10 ...
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| science | 8/13/2005 |
Q: how do you measure the volume of a sponge?
A: sorry for the delay i had to leave abruptly for 10 days. If you are talking about the day to day use ...
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| Gravitational force on Earth | 8/9/2005 |
Q: Sir, I wanted to know why the 'force of gravity' exists on earth only. Why not on other planets of ...
A: Supriya, how did you get the notion or idea that gravity is non-existent outside and away from ...
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| static electricity | 7/28/2005 |
Q: I have aWhen I rub a balloon on fur it becomes charged and i'm able to pick up small things. Why ...
A: ! Hope you arent pulling my leg here..there seems to be a rock band by the name van der graff ...
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| I have a question: When I... | 7/28/2005 |
Q: I have aWhen I rub a balloon on fur it becomes charged and i'm able to pick up small things. Why ...
A: I believe you asked the same question twice.. I am just cutpasting my "previous answer"..hoping you ...
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| autoclave | 7/28/2005 |
Q: I'm not a kid . i didn't know what topic to go to, science seemed the best. Hope you can help. I ...
A: This link has a pdf (acrobat reader required) document with graphs and illustrations and is in in ...
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| god | 7/9/2005 |
Q: can we see god?
A: I guess from your name you may have muslim affiliation and may be NOT open to what i say..but i beg ...
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| static electricity | 6/26/2005 |
Q: considering surfaces of materials and their positions on the triboelectric series, what two ...
A: Here is one of many links on the web on the subject of triboelectricity. On this site, you will find ...
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| About earth's surface | 5/29/2005 |
Q: What would happen if an aircraft traveled higher than 20 km above the earth's surface? What year ...
A: Sorry for the delayed answer..I was into "bread & butter" issues. You see a mikle = 5280 feet. The ...
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| speed of light | 5/26/2005 |
Q: can humans travel at the speed of light? if not ,why
A: Because of many things Yohn, cheifly because...strange things happen.. 1 - As you travel close to ...
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| rainbows | 5/1/2005 |
Q: Hey! How are you? My name is Skye and I'm in 5th grade. I have a question about rainbows. In school ...
A: That can be done by spraying up a large enough volume continuously with suspended fine droplets to ...
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| Science project | 4/28/2005 |
Q: I am researching what a bandaid will stick longer in, salt water, oil, vinegar or water. I need ...
A: Derek! One must formulate ones question very precisely! You see if you were to stick band aid onto ...
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| Radio waves, signals, stations | 4/12/2005 |
Q: Do we receive more radio stations in the daytime or at night and Why?
A: The answer (not based on exceptional theory but solid experience!) is night. The ionosphere is in a ...
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| science | 4/7/2005 |
Q: when is the best time to have a science fair? SEND ASAP
A: I am assuming you are serving in some senior capacity in some school and want me to share my ...
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| Newton color wheel | 4/3/2005 |
Q: Jayendra! Could you help me and my 7th grade friend come up with an idea for her science fair ...
A: Your friend could make a complete set of color wheels, that could be pushed ont and pulled off the ...
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| solar power | 3/30/2005 |
Q: can you describe how photovoltaic systems work ? you know that they invert solar power to electric ...
A: 1 - Photo-Voltiac systems work based on the principle that electrons in certain substances are ...
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| plants | 3/24/2005 |
Q: I'm an 7th grade student.I am doing a plant experiment at home about mint plants.My question is. ...
A: Not all plants "prefer" salt water! Salt water has a tendency to become less salty by "pulling" ...
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| Why ask why? | 3/22/2005 |
Q: Why do we ask why? Or, why do we asking questions? Why do I want to know the answer to that and ...
A: We are what we are cheifly because we learned to ask why! Mind you it is not just humans who do ...
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| Environment | 3/8/2005 |
Q: I was wondering if you could help me to understand why the sky is blue. I would appreciate your ...
A: Ashley ..I have been asked this question a zillion times! Not your fault really so dont worry!! The ...
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| Hot and cold water and cotton balls | 2/23/2005 |
Q: I am in 6th grade. I recently did an experiment with hot and cold water and cotton balls. The ...
A: Lynn, Gracie was kind enough to let me know your name so i could include you in the answer. So ...
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| Science Fair Project | 2/22/2005 |
Q: My question is do you pupils in your eyes get smaller if you are tired ?
A: Actually fatigue constricts them to some extent, but more fatigue will actually make the muscles ...
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| a easy way to make icebergs for a 3rd grade project | 2/18/2005 |
Q:
A: there are many ways.. I give one here The quickest and easiest way to make icebergs is to "meld" ...
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| H2O Electrolysis | 2/14/2005 |
Q: Do you know anything about H2O Electrolysis "Splitting Water"? I am doing it for a science project ...
A: yes, that is ok, what is written on that page i mean. 1 - water is a collection of ions H+ and OH- 2 ...
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| stars | 2/10/2005 |
Q: how many minutes does light take to reach Earth from the Sun?
A: From what i remember from my school days..it should be eight minutes! But let us do some arith and ...
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| science | 1/24/2005 |
Q: What is the absolute pressure in space?
A: Zero! Or very close to it. The matter density in absolute space (intergalactic) is a couple of ...
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| ???? | 1/23/2005 |
Q: what is the conversion of a substance from one phyical form to another? please help me w/ this...
A: "metamorphous" is the word, often found in the other form "metamorphic". This word is mainly applied ...
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| colors | 1/21/2005 |
Q: Is black the absence of all colors or is white. I'm having a debate with a friend of mine. She ...
A: You are the lucky one! [Because you are right]. I used the term "lucky", becasue that is what is to ...
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| Solar Energy | 1/19/2005 |
Q: I am a high school student attending Hamilton High School in Los Angeles, California. I need to do a ...
A: Gladly sergio, gladly! For this the more inexpensive approach you need to do --things! 1 - ...
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| Scientific investigations | 1/18/2005 |
Q: Can you tell me how scientists rely on mathematics to conduct scientific investigations
A: I would love to do that. If can do so, pls try and get a copy of Sagan's "Cosmos". He has descrived ...
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| ice melting | 1/8/2005 |
Q: I'm doing a project on ice. what does ice melt faster in water or in air. And one of the questions ...
A: Sory for the delay julian, my pc hanged after i typed in an answer, so i put it off until today. 1 ...
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| hiccups | 1/5/2005 |
Q: Ok, wow I really need help with my science project. I'm trying to review the literature and i need a ...
A: 1 - http://www.flash-med.com/Cause_of_Hiccups.asp Lists the causes of hiccups. Use the causes ...
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| windmills | 1/3/2005 |
Q: HOW CAN I DO A PROJECT ABOUT WINDMILLS? WHAT WOULD BE MY HYPOTHESIS?
A: Brandon, your hypothesis would be as under: I am attending the hypothesis part first. 1 - Air flows ...
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| bread mold experiment | 1/2/2005 |
Q: I need help. I've looked @ ALL the websites concerning bread mold and i cannot find information for ...
A: Ok! here are the links! 1 - ...
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| This is a question about space. | 12/20/2004 |
Q: Hello. This is my first mail to you. I am a Japanese college student. I?fm interested in space. As ...
A: I would have liked to give you a tabular answer, but the existing structure of the answering system ...
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| Science project | 12/9/2004 |
Q: i need to know what kind of title can i use for this problem " Does the color of hair affect the ...
A: Amanda I am sorry for the delay in answering your question! I am actually on vacation! I do onot ...
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| Science | 12/4/2004 |
Q: How does Newton's second law of motion affect you on a water slide?
A: Newton's second law states a = f/m ie:Acceleration = Force producing the acceleration and the ...
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| do aeroplanes stop in sky | 11/30/2004 |
Q: Do aeroplanes stop in sky like trains at signals.? hope to get a reply soon. best regards Rafi
A: There are indeed aeroplanes that can "stop" and stay in one place in the sky. If you saw the movie ...
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| Scientific language | 11/27/2004 |
Q: Given that the gap between scientific language and the layman's ability to understand it is ever ...
A: What you are saying is completely true. But one thing i might point out to you here.. It is the ...
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| Science | 11/26/2004 |
Q: I dont understand this question and wanted to know if you could understn it. Which came first, the ...
A: Maria! Many people are asking me "such" questions on this forum and that often leaves me wondering ...
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| Science | 11/25/2004 |
Q: If a tree falls in the forest and there is no ear to hear, is there sound produced? Explain: If ...
A: I do believe you are serious! How could such a heavy object as a tree falling, NOT make a noise? ...
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| Can you help. | 11/24/2004 |
Q: I am in the 8th grade and I have a science fair coming up and I am fresh out of Ideas can you please ...
A: I do not know you are from where europe or usa etc. So i am just listing some projects i did way ...
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| The Solar System | 11/22/2004 |
Q: if possible could you provide me with information on the following questions: 1/ How long does it ...
A: You are indeed a young task master..arent you? ..:) Well I hope you rate my answer and make me happy ...
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| Phyisical Science | 11/21/2004 |
Q: how can you determine the number of neutrons an atom has from an atom's mass number and its atomic ...
A: The mass number is defined as : The total number of protons and neutrons in the nucleus: A=Z+N. This ...
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| bubbles | 11/20/2004 |
Q: will bubbles last in hot days or cold days?
A: A soap bubble's life is decided by many factors: 1 - How long it is airborne 2 - The consistency ...
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| The Solar System | 11/9/2004 |
Q: Why does the sun look brighter than other stars? How many hours does it take for the earth to spin ...
A: 1 - It looks brighter ONLY BECAUSE it is NEARER. 2 - SIMPLY put, 24 hours, but to be precise, there ...
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| Jayendra, I need to know... | 11/7/2004 |
Q: Jayendra, I need to know the correct number of colvalent bonds to predict the formula for a simple ...
A: just keep in mind that carbon in organic chemistry, mostly can form upto 4 covalent bonds. 1 - in ...
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| FLOATING OR SINKING EXPERIMENTS WITH EGGS | 11/4/2004 |
Q: CAN YOU HELP US? MY DAUGHTER IS 9 SHE IS IN THE 4TH GRADE. SHE IS DOING AN EXPERIMENT ON BUOYANCY ...
A: Williams, 1 - The part about boiling eggs with and without salt water is not related with the part ...
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| I need to know the energy... | 11/2/2004 |
Q: I need to know the energy in ev of the electron of a hydrogen atom for the orbit designated n=5.
A: [Mary I am basically a "concepts" man so pardon any silly arith errors i might make and do cross ...
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| science fair research | 11/2/2004 |
Q: My question for my project is "If I submerge a balloon in deep water, will it change shape or pop?" ...
A: I do not know but presume you are from the US. Well, that fellow at the cabin told you rightly about ...
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| solar eclipse | 10/28/2004 |
Q: When will the next SOLAR eclipse be?
A: The next one is going to be on april 08, 2005 and is going to be an uncommon eclipse called hybrid ...
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| Does the size of a ball affect... | 10/27/2004 |
Q: Does the size of a ball affect have far it will roll?
A: Size is but one of 4-5 important variables determining that! I keep it constant in following ...
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| Science Fair Project | 10/26/2004 |
Q: My name is Kelsey Fischer, I am in the 6th grade and I have started a science project on color ...
A: Nothing like starting with google! Type "causes color fading" in google and you will be astonished ...
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| periodic table | 10/25/2004 |
Q: What properties of the elements are periodic functions of their atomic number?
A: I would say :- 1 - Physical properties 2 - chemical properties 3 - Radio-activity Let me explain. 1 ...
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