Recent content by BioBen

Do you have any idea what are the CO2 levels (in ppm or in percentage) in each jar ?

Hey, thanks again for answering ! Ok, i'll think about that. Maybe i should try to do an internship over summer (if i find one !) - it is even more difficult for me coz most of the interships in the US are for US citizens or permanent residents /// I'll talk to my teachers about that. Nope in...

Hey, thanks for your quick answer. I should have said it in my first message but I actually care more for my academics than for money (-for the moment lol- my parents are still paying for me). No but i may be doing some tutoring so yes i would be earning money. Is it much better on my resume...

Hi, I am a French student in theoretical physics i am doing a year abroad at the university of Texas at Austin. I am taking all the physics senior undergraduate courses UT offers, and my GPA is >3.0 (on a 4.0 scale). I would like to get into a phd program here (UT or in the US), but i am...

Hi, may you pliz tell me the difference between a BA and a BS in the USA (UT Austin) ? I was told that the BS was more "pre-professionnal" and that a BS was more for research, but is there a real difference. I'd like to become a phd in physics, so should i apply for a BS or a BA in Physics...

Hi, i am currently in a french university (Université Pierre&Marie Curie, Paris) and i am still an undergraduate (in Physics). I plan to make my studies in the US next year, and i can choose between the "George Washington University" and the "University of Connecticut" (Storrs). Which...

Ok thanks. I have heard quite good things about University of Waterloo (Canada). How do you find that university (for a 3rd/4th year of a BSc) ? Anyway i still think i will put Austin first, thanks for your help everyone.

Well he was actually speaking about a black hole... Ok i think i didn't express myself corecctly : Earth will be influenced by the gravitational fiel generated by the photon, but that is not the point ! What i wanted to say in my message is that as in Newtonian mechanics gravity doesn't deped...

Then gravity is a pseudo-force ... because for someone in free fall gravitational force doesn't exist (GR). I'm not sure of me that's why i asked it before but i didnt get any answer :( That would also eplain why when you put a not-calibrated accelerometer on a table it indicates that the...

Yep, expansion is accelerating. http://en.wikipedia.org/wiki/Accelerating_universe

I think that expansion only has effects on cosmological scale. Next to particles, stars, and even galaxies, you use schwarzchild solution of GR. http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1945RvMP...17..120E&db_key=AST&high=411470500d26140

If you really really want to head in that direction, then i think the more correct way to say it is that it may lead to chaotic systems (chaos theory, because we can never make "perfect" experiments => you don't know exact the intial conditions), but in no way it is linked with QM...

No cell is created from nothing ! Why do you think you have to eat and drink to survive ?

I have a subsidiary question : Do you consider that gravity is a pseudo-force ?

The equation is nearly the same (same form) : L = L0*sqrt(1-v²/c²) I don't know how you call it in english, but i think it is better to say that mass is a relativistic invariant (mass = m0), what changes is intertia, which is defined as m0/sqrt(1-v²/c²). Benjamin