Careers: Physics/Questions
| Subject | Date Asked | Expert |
| mass | 3/13/2011 | Carlo Segre |
| Q: Does all radiation including sunshine and all particles have mass? If something doesn't have mass ... A: It depends on how you define radiation. In the most strict sense, the term "radiation" is ... | ||
| High school | 3/12/2011 | Carlo Segre |
| Q: I am a straight A ninth grade student and I love all kinds of science especially physics. i just had ... A: Congratulations on your excellent academic record! Let me answer your questions one by one. 1. ... | ||
| frequency | 2/19/2011 | Carlo Segre |
| Q: Someone told me that an atom can vibrate without producing an electromagnetic wave but it could be ... A: An atom can vibrate and always does so since the presence of zero point motion guarantees it. The ... | ||
| Career paths | 2/12/2011 | Carlo Segre |
| Q: i want to study mathematics,physics and geography.what career am i most likely to take up after ... A: Good question. Let me start with physics and then say a few words about the others. A degree in ... | ||
| Physics lab | 2/7/2011 | Carlo Segre |
| Q: I'm a physics student and I was wondering if instead of getting a job after I graduate I could ... A: This is a difficult question to answer on several levels because I can only give you ... | ||
| atoms | 2/3/2011 | Carlo Segre |
| Q: I heard that atoms above absolute zero vibrate. Is this always true for all atoms or can they ... A: Atoms always have motion, no matter how low the temperature. This is one of the manifestations of ... | ||
| higher studies | 2/2/2011 | Carlo Segre |
| Q: now i am doing btech.after my btech i want to do higher studies in physics.so plz give me a advice. A: This is a big question. I will assume that when you say "higher studies" in physics, you mean a ... | ||
| Engineering/Research Degrees | 1/4/2011 | Carlo Segre |
| Q: Segre, I am currently a double major in physics and electrical engineering. My career goal is to ... A: At my institution we often have students who would like to pursue a dual degree in physics and some ... | ||
| Ionizing Radiation | 12/31/2010 | Carlo Segre |
| Q: Maybe you can help? I found this on the web do you think it's credible? The following excerpt was ... A: Am-241 has a half-life of about 400 years and it mainly produces alpha particles (also low energy ... | ||
| lens | 12/19/2010 | Carlo Segre |
| Q: why convex lens converges and concave lens diverges? ANSWER: That is not exactly true, it depends ... A: You can differentiate between a converging and a diverging lens by putting an illuminated object ... | ||
| what opportunity? | 12/6/2010 | Carlo Segre |
| Q: my self falguni my son keshav is now in class 6th he want next study with NASA what opportunistic ... A: I answered this question previously on this site, so I will simply point you to that answer. ... | ||
| physics | 11/29/2010 | Carlo Segre |
| Q: why do we need detergent when we are washing clothes? A: This is a question better answered by a chemist than a physicist but I will give you a brief answer. ... | ||
| Physics | 11/18/2010 | Carlo Segre |
| Q: I am an undergraduate of Physics: Applied in Electronics, and I will like to do my MSc in ... A: I am not exactly sure what your question is. I can envision two interpretations for your question ... | ||
| Predictibality of radioactive decays | 10/22/2010 | Daniel Mazur |
| Q: I have read about radioactivity and do know that we cannot predict when a nucleus will decay. ... A: radioactive decay is described by quantum theory. Processes like this one have no better description ... | ||
| mechanics | 10/18/2010 | Carlo Segre |
| Q: Is all electromagnetic radiation considered to be photons? Can you have an electromagnetic wave ... A: The main evidence for the wave-particle duality is in what is called the Young's double-slit ... | ||
| mechanics | 10/18/2010 | Carlo Segre |
| Q: Is all electromagnetic radiation considered to be photons? Can you have an electromagnetic wave ... A: All electromagnetic waves can be considered photons as well. It is a fundamental principle of ... | ||
| emission of energy | 10/16/2010 | Carlo Segre |
| Q: When people and animals emit electromagnetic radiation both from inside their bodies and around ... A: The first statement is correct. If there is no change in energy of electrically charged particles, ... | ||
| emission of energy | 10/14/2010 | Carlo Segre |
| Q: When people and animals emit electromagnetic radiation both from inside their bodies and around ... A: Carbon dioxide and water are both good absorbers of infrared radiation so, the typical absorption ... | ||
| emission of energy | 10/13/2010 | Carlo Segre |
| Q: When people and animals emit electromagnetic radiation both from inside their bodies and around ... A: All electromagnetic radiation travels at the speed of light in vacuum. In a medium such as the ... | ||
| physics | 10/13/2010 | Daniel Mazur |
| Q: while studying light, why we prefer wavelength why not frequency? A: this is because when handling visible light, people compare certain linear dimensions of the ... | ||
| Job Options after a physics Ph.D. | 10/7/2010 | Daniel Mazur |
| Q: I do know, from our past discussions and from various other sources online, that job prospects as a ... A: [Q]wouldn't it be equally good to go in for a Ph.D. so as to fulfil my passion instead of a business ... | ||
| Job Options after a physics Ph.D. | 10/4/2010 | Daniel Mazur |
| Q: I do know, from our past discussions and from various other sources online, that job prospects as a ... A: the honest answer is yes, it is that bad. Only a decade ago the graduates from Ivy League, MIT, ... | ||
| Jobs involving maths,physics,biology,geography | 9/30/2010 | Daniel Mazur |
| Q: I am currently in my last year of high school, and seeking for advice on what type of careers or ... A: due to an accident I couldn't write any answers lately, so I don't know if you have any use for my ... | ||
| A Career In Physics. | 9/23/2010 | Carlo Segre |
| Q: I am currently a senior in High School and don't hva e a very good idea of what to do after I ... A: I think you have me mixed up with Daniel Mazur, who also answers questions about careers in physics. ... | ||
| career in physics | 9/17/2010 | Carlo Segre |
| Q: good day sir my name is israel am a nigerian.i love physics and mathematics so i choose theoretical ... A: I actually don't understand what you mean by "ordinary" physics. In order to be a physicist, you ... | ||
| laser...,, | 9/8/2010 | Carlo Segre |
| Q: which is the laser used in nuclear power plant for initiating nuclear fusion reaction? A: First of all there is as yet no nuclear fusion power plant, there are only demonstration projects. ... | ||
| biology. | 9/3/2010 | Carlo Segre |
| Q: Sorry, this question isn't actually about physics, but I am in grade 12 right now, and want to ger ... A: I am not an expert in the curricula of universities outside the United States so I cannot speak for ... | ||
| BSc Physics: What to do next?? Renewable Energy Development? | 8/26/2010 | Daniel Mazur |
| Q: I am 25 and have a BSc in Physics, but am really not sure what I should do next!! During my degree ... A: I am very late with answering you, my apologies. In my experience those who get a BcS in physics, ... | ||
| Bond | 8/12/2010 | Daniel Mazur |
| Q: Why atom needs to form bond bcause it can be stable due to neutral nature? A: atoms bond together, because together (in compounds) they occupy states lower in energy than is the ... | ||
| Careers in Physics | 8/10/2010 | Daniel Mazur |
| Q: I am a college frehman studying biophysics at the University of Alabama in Birmingham. I would ... A: please accept my sincere apologies for the lateness of my answer, I have been away for my vacations. ... | ||
| income in the field of physics | 8/10/2010 | Daniel Mazur |
| Q: i m still in my high school.And I would like to know that what is the maximum salary an aeronautical ... A: one answer is fairly straightforward: Physics does NOT lead to being a millionaire. Not in a real ... | ||
| Deriving the equtions of rotational motion from newton's laws | 8/9/2010 | Daniel Mazur |
| Q: We have had enough conversation on the topic of rotation. But one thing I again wanted to confirm is ... A: it is not surprising to me that the book of Classical Mechanics (CM) is lengthy and involved. ... | ||
| change model | 8/9/2010 | Daniel Mazur |
| Q: He is grade 6 , 12 years old in Australia. He has to present 6 to 8 photos showing clear and ... A: Davis, the phase changes accessible to taking photos of are the boiling (from liquid to vapour), ... | ||
| Deriving the equtions of rotational motion from newton's laws | 8/8/2010 | Daniel Mazur |
| Q: We have had enough conversation on the topic of rotation. But one thing I again wanted to confirm is ... A: I perfectly understand your drive to understand, I merely expressed my wish that you sate your ... | ||
| Determining individual accelerations in a two particle system | 8/6/2010 | Daniel Mazur |
| Q: The problem that I'm trying to solve is as follows. Suppose we have two like particles, of mass m ... A: my advice will be that you first learn the classical mechanics, i.e. the Lagrangean equations and ... | ||
| To be a scientist | 8/3/2010 | Carlo Segre |
| Q: Sir , i want to be a scientiest in the field of astrophysics.what we have to do for it? A: You have not provided sufficient information for me to be more specific but the bottom line is that ... | ||
| Speed of light | 8/3/2010 | Daniel Mazur |
| Q: Does all electromagnetic radiation/photons travel at the speed of light? I have heard that electrons ... A: yes, the light travels in air at a slightly slower speed than in vacuum. According to ... | ||
| Deriving the equtions of rotational motion from newton's laws | 7/31/2010 | Daniel Mazur |
| Q: We have had enough conversation on the topic of rotation. But one thing I again wanted to confirm is ... A: yes, we CAN derive all those terms from a bunch of definitions and Newton's laws. I recall it's been ... | ||
| about my career | 7/31/2010 | Carlo Segre |
| Q: I am in second year B.D.S. student and I am intrested in physics very much and join to NASA then how ... A: I presume that the B.D.S. is the bachelor of Dental Surgery degree? Please correct me if I am ... | ||
| Speed of light | 7/23/2010 | Daniel Mazur |
| Q: Does all electromagnetic radiation/photons travel at the speed of light? I have heard that electrons ... A: yes, I am saying, that electrons within atoms (actually even anywhere else) don't travel at the ... | ||
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Carlo Segre
Top Expert on this page
Expertise
I can answer most questions about studying physics in college and graduate school; questions about condensed matter physics; x-ray physics; synchrotron radiation; and general and modern physics. I can also answer questions about careers in academia.
Experience
Professor of physics for 27 years at Illinois Institute of Technology. Academic adviser for undergraduates and graduate students. I have served on university promotion and tenure committees, search committees for Deans and Department Chairs. I have also been an Associate Department Chair and an Associate Dean. I have 30 years experience in materials science research and I have been responsible for building and now managing a User facility at the Advanced Photon Source.
Organizations
American Physical Society
Sigma Xi
American Chemical Society
American Associate for the Advancement of Science
International Centre for Diffraction Data (Fellow)
International X-ray Absorption Society
Publications
Nature;
Physical Review Letters;
Physical Review;
Applied Physics Letters;
Journal of Physical Chemistry;
Journal of Magnetism and Magnetic Materials;
Physical Chemistry Chemical Physics;
Solid State Communications;
Physics Letters;
Journal of Low Temperature Physics;
Journal of Crystal Growth and Design;
Physics Letters;
Journal of Applied Physics;
Journal of Archaeological Science;
Physica C;
Corrosion Science;
Electrochimica Acta;
Journal of Nuclear Materials
Education/Credentials
Ph.D. Physics, 1981 - University of California, San Diego
M.S. Physics, 1977 - University of California, San Diego
B.S. Physics, 1976 - University of illinois, Champaign-Urbana
B.S. Chemistry 1976 - University of illinois, Champaign-Urbana
Awards and Honors
Fellow, International Center for Diffraction Data
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