Comments | abygael: I love science

abygael

I love science

Apr 27, 2006 22:43

I enjoy explaining things to people, it's just one of those things about me. Especially if said things pertain to science, as I also enjoy science. So I am going to rant write about science on my eljay. Because I can ( Read more... )

relativity, infinity, science

Comments 7

niuxita21 April 27 2006, 12:10:05 UTC

Wow. Seriously, you're a genius. I now know where that 7 in HL physics came from...

abygael April 28 2006, 00:54:08 UTC

Oh no, that was just to spite my physics teacher. The surprise on her face when she saw my mark was priceless. ;p

abygael April 28 2006, 00:54:46 UTC

Also, I love you avatar. *lols quietly to self*

jeebuz_avt April 27 2006, 17:09:10 UTC

You missed the part about mass-energy equivalence being the reason we can't go faster than c.

abygael April 28 2006, 00:53:07 UTC

You're right, I did. I guess it's 'cause I don't usually think of it in those terms. :-(

Good read... anonymous June 15 2006, 15:20:04 UTC

OK, I just spent 2 hours deliberating over this :P But here goes: What happens to light (a photon) as it passes through a transparent medium? We know that photons do not have a mass, however they do have energy and momentum. If we consider the equation: E = m c^2 / sqrt(1 - v^2/c^2), a massless particle, must always move at the speed of light (in a vacuum), c [E = 0/0]. But what happens when light passes from a vacuum into air, or from air into glass? Does the photon slow down, causing the bending of light? And if so, what happens to its energy (as E would equal zero if the velocity were anything but c)? I'm sure I'm missing something here, but an explanation would be nice :P

Brendan

Re: Good read... abygael June 16 2006, 04:12:20 UTC

Hi, I've posted an answer here.