| Subject | Date Asked | Expert |
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| Cooling compound. | 8/19/2009 | Mike Fulcher |
Q: Hey Mike, I was thinking about the military's MRE's the other day and was wondering a few things. ...
A: I have a vague recollection that it is a calcium compound, perhaps calcium oxide. When mixed with ...
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| degreaser vs rubber | 7/3/2009 | Reza Foudazi |
Q: Are ordinary household rubber gloves resistant to citrus degreaser? Are latex or nitrile gloves ...
A: I don't think that ordinary household rubber gloves are resistance to degreaser, especially latex ...
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| Dry Water | 2/28/2009 | Reza Foudazi |
Q: I recall years ago seeing a television commercial from Union Carbide,Dow Chemical,3M or perhaps one ...
A: These seems more a fantasy story, but in the field of science it is not impossible. Although, you ...
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| Alkaline water spots | 2/13/2009 | Mike Fulcher |
Q: Sprinkling a lawn with alkaline water forms hard spots on windows that seem to bond to the glass. ...
A: I believe that the most common type of water spots are calcium based, in the form of calcium ...
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| Alkaline water spots | 2/8/2009 | Mike Fulcher |
Q: Sprinkling a lawn with alkaline water forms hard spots on windows that seem to bond to the glass. ...
A: David, I apologize for the late reply. The water spots are the result of the minerals in hard water ...
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| Zamboni Battery Part 3 | 2/7/2009 | Mike Fulcher |
Q: Mike, I have succeeded in getting a Zamboni type cell to output 1.5V. Thank you for your previous ...
A: Paul Sorry i took so long to get back to you, but work has been pretty overwhelming lately. What ...
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| Feasibility of "construction foam" in science-fiction book? | 2/4/2009 | Reza Foudazi |
Q: Salam! Shoma chetur hastin? Shoam mitooni ke komakam konid? I am sorry to bother you, and thank you ...
A: This question is very difficult to answer, because always dreams cause inventions! Ok, foam ...
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| bottles water types? | 2/1/2009 | Angel Evangelista |
Q: would you happen to know the answers to the following: 1. What is the difference among purified, ...
A: I have been out of the office away from home on a time-consuming project for my company. I hope to ...
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| plastic bottles | 1/28/2009 | Angel Evangelista |
Q: I'm a 3rd year Mass Communication student of Far Eastern University, Philippines. I'm doing an ...
A: I have been out of the office away from home on a time-consuming project for my company. I hope to ...
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| plastic bottles | 1/25/2009 | Angel Evangelista |
Q: I'm a 3rd year Mass Communication student of Far Eastern University, Philippines. I'm doing an ...
A: I'm a 3rd year Mass Communication student of Far Eastern University, Philippines. I'm doing an ...
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| catalyst | 1/24/2009 | Reza Foudazi |
Q: Ba salam khoshhalam soalamo az yek Irani miporsam. man mikham ye proje tahghighati dar morede ...
A: Salam In kheili bastegi be systeme reaction shoma dare! chon man bishtar dar morede polymer-ha ...
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| PVC wire | 1/16/2009 | Angel Evangelista |
Q: does the PVC insulated wire get damaged in any way if it is continuously exposed to Sun and Rain? ...
A: As a general rule of thumb, ALWAYS keep in mind that ALL PLASTICS DEGRADE IN THE PRESENCE OF ...
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| polymeric post | 1/11/2009 | Reza Foudazi |
Q: salam. bebakhshid az tekrare dobaresoal. goftam shaya lazem bashe ye tozihe koochik bedam. dar ...
A: Sorry for delay in replying! Firstly, we need to have some basis or same terminologies. What is a ...
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| polymeric post | 1/11/2009 | Reza Foudazi |
Q: do we have any material ( polymeric or etc )that we can inject it into root canal as post ? that ...
A: Sorry for delay in replying! Firstly, we need to have some basis or same terminologies. What is a ...
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| viscosity | 12/27/2008 | Reza Foudazi |
Q: سلام.من دانشجوی ...
A: salam ba arze poozesh be dalile dir javab dadan! betore kolli baraye calibration rheometer az ...
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| HI!! URGENT1 | 12/18/2008 | Angel Evangelista |
Q: I am a 12th grade student studying in the USA but i am going to India to do chemical engineering. ...
A: 12th Grade?!? A senior (4th year) in a U.S. High School? Are you AT LEAST taking and doing very ...
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| Halogen bulb burnout smoke | 11/25/2008 | Mike Fulcher |
Q: Have an unusual problem. Had a leaking headlight enclosure. Halogen bulb burned out every time ...
A: I've seen what you are talking about, but don't know what exactly it is off the top of my head. I ...
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| Magnegas | 11/14/2008 | Angel Evangelista |
Q: I came across an interesting website,http://tinyurl.com/6nepb4,which deals with a supposedly new ...
A: That is VERY INTERESTING to say the least! It is not "hokum" AND it is not some brand-spanking new ...
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| calculating ppm | 11/12/2008 | Angel Evangelista |
Q: The question is not a homework. we're to test a fungicide before using it and the directive is that ...
A: Ahhh, I see what you are doing. Yes, that will work because it appears you are adding 7.5 mg of ...
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| probe corrosion in water | 11/7/2008 | Angel Evangelista |
Q: i'm an electronics student. i was building a water lvl controller(based on water conduction). i'm ...
A: Q: I have reduced corrosion of probes by reducing the current passing thru the probes. but NOW, ...
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| probe corrosion in water | 11/1/2008 | Angel Evangelista |
Q: i'm an electronics student. i was building a water lvl controller(based on water conduction). i'm ...
A: ADDITIONAL ANSWER (11/07/08, 11AM CST): I see - a level controller for water service only, to ...
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| calculating ppm | 10/30/2008 | Angel Evangelista |
Q: The question is not a homework. we're to test a fungicide before using it and the directive is that ...
A: You really should be able to calculate this on your own, especially if you have taken college-level ...
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| Cesium Power | 10/28/2008 | Mike Fulcher |
Q: Okay I have to give a presentation on the element Cesium and we all know that it explodes in water ...
A: To determine the energy generated by this reaction, you need to know the "heat of formation" of the ...
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| polypropylene | 10/3/2008 | Reza Foudazi |
Q: Can polypropylene plastic be heated in the microwave?
A: The polypropylene (PP) itself can not adsorb the wave energy in the range of kitchen microwaves! So ...
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| Zamboni Battery Part 2 | 9/20/2008 | Mike Fulcher |
Q: Mike, You asked : Now for more questions. Which side of the paper do you paint on? My guess would ...
A: Well, from what you're telling me it seems as if there may be an current leakage path in the ...
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| Zamboni Battery | 9/19/2008 | Mike Fulcher |
Q: Mark, I am trying to re-create a Zamboni battery. I am using Manganese dioxide and tin (just like ...
A: Now for more questions. Which side of the paper do you paint on? My guess would be the paper side, ...
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| Zamboni Battery | 9/19/2008 | Mike Fulcher |
Q: Mark, I am trying to re-create a Zamboni battery. I am using Manganese dioxide and tin (just like ...
A: Paul Theoretical voltages are typically higher than actual measured voltages because of ...
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| Zamboni Battery | 9/13/2008 | Mike Fulcher |
Q: Mark, I am trying to re-create a Zamboni battery. I am using Manganese dioxide and tin (just like ...
A: Paul At first guess I would say that the behavior you're seeing may be related to the type of paper ...
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| chemical reaction with concrete | 8/27/2008 | Mike Fulcher |
Q: I have a salt chlorinated swimming pool. Over winter several small white 'holes' (20-30cm diameter, ...
A: Sorry to have taken so long with this question. My first thought would be that there isn't any link ...
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| acid test metals | 7/23/2008 | Mike Fulcher |
Q: I have an item that I believe might be gold, however it has no distinguishing marks except "acid ...
A: The acid test is a means of quickly determining if a sample is pure gold. With more careful ...
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| polymer | 7/19/2008 | Reza Foudazi |
Q: what is the criteria for phd admission for international student (I am from Pakistan) how can i get ...
A: There is not a written limitation for admission of a PhD student! (because you need to pay for your ...
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| Langmuir-Blodgett Trough | 6/24/2008 | Reza Foudazi |
Q: I have a question to ask regarding the Langmuir-BLodgett Trough. I am currently working with stearic ...
A: I think this is the method that lots of papers published on it. So, I think you just have some ...
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| Arrhenious equation | 6/18/2008 | Reza Foudazi |
Q: Sir, What are the limitations and boundaries of the basic Arrhenius equation and where is it derived ...
A: I thought that it is better for you to see a detail of "Arrhenius equation" and "activation energy" ...
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| Storing a butane lighter indefinitely | 6/16/2008 | Mike Fulcher |
Q: I have a butane lighter that I'd like to store in my souvenirs box and I'm trying to decide whether ...
A: You seem to have thought this through very well. You are correct in assuming the butane will ...
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| Lead acid batteries | 4/30/2008 | Mike Fulcher |
Q: I recently bought a new lead acid battery and was given the battery and a container of ...
A: I didn't know you could still get lead acid batteries that way. The manufacturers keep the acid and ...
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| Petrol | 4/29/2008 | Mike Fulcher |
Q: Will fuel vapor in my petrol tank condense back into liquid fuel? I presume that this may be ...
A: While I don't have any exact numbers at my disposal, I can suggest a few things. First, gasoline ...
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| Petrol | 4/24/2008 | Mike Fulcher |
Q: Will fuel vapor in my petrol tank condense back into liquid fuel? I presume that this may be ...
A: At a fixed temperature in a closed (non-leaking) system, there will always be fuel condensing (with ...
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| Ions | 4/12/2008 | Mike Fulcher |
Q: If I ionize the air in an area that I intend to combust will the addition of electrons to the air ...
A: Good question. Presumably by adding energy to the system in the form of ionization you would reduce ...
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| Polymers to help Eco lifestyle | 2/27/2008 | Reza Foudazi |
Q: I am a trend analyst in London and i am researching into how the future of gadgets and technology ...
A: There are many researches have bee done regarding the environment friendly polymers. This can be ...
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| magnets | 2/27/2008 | Mike Fulcher |
Q: if I place a magnet against a pipe with a liquid flowing through it how will this affect the liquid? ...
A: The magnet will have no effect on any liquid passing through the pipe. Even if it was a liquified ...
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