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312
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location The South
age 22
visits member for 1 year, 8 months
seen 27 mins ago

I'm presently a physics major, and futurely (yes, I know it's not a word) a physics teacher. I've never wanted to do anything else. I just love physics, pure and simple.


Dec
8
comment Doubt regarding inclined plane in feynamn lectures
@user34304 As with the Bible, it's much more convenient to cite the book, chapter, and verse when you're trying to locate a passage in the Big Red Books. E.g., the 'Gravitational potential energy' is section 2 of chapter 4 of Book I, so you'd write (I.4:2) ;)
Dec
8
comment What actually is meant by wave nature of electron or any other material particles?
+1 for an elucidating response. And if you don't mind me saying, you really seem to have a knack for composing answers that can be read on two levels of understanding, depending on the reader's physics background.
Dec
3
comment Lower limit of the size of the Universe? (WMAP)
It's calculated virtually the same way ancient geometers calculated lower bounds on the radius of Earth. All you need is a triangle and a pinch of spherical trigonometry.
Dec
2
comment Is the total energy of earth changing with time?
Check your local weather forecast to confirm that atmospheric temperature is not constant.
Dec
2
comment How can spatially extended objects behave like point particles?
en.wikipedia.org/wiki/Shell_theorem
Dec
2
comment best fundamental physics book
The Big Red Books, by R.P.F.
Dec
1
comment Newton's second law - infinite velocity?
Clarification: while velocities are limited to less than the speed of light, there is in principle no upper bound on how large momenta can be.
Dec
1
comment Newton's second law - infinite velocity?
Yes it does, but the law breaks down for large velocities approaching the speed of light.
Nov
27
comment Is the Higgs particle the final one predicted by the Standard Model?
Yes, and no. Some variations on the theory have multiple Higgs particles (or as I like to call them, Higgs & Biggs).
Nov
27
comment What causes liquids to have different densities?
Relevant: en.wikipedia.org/wiki/Periodic_trends
Nov
26
comment Homework - Mechanics
Congratulations. You are about to learn a valuable lesson in units
Nov
26
comment Why is it that a Carnot heat engine will reject no heat to a zero temperature sink?
I think it's important to remember here that a heat sink at absolute zero is physically impossible. One expects impossible objects to exhibit paradoxical behaviors and contradictory properties.
Nov
25
comment What does Mass bend?
There really is no useful answer to your question. Space, time, mass, and energy are the most fundamental constituents of the universe, so far as as we currently understand things. We do not understand them in terms of anything more fundamental.
Nov
23
comment Speed of light, lasers and mass
Also, if we were to discover a new interaction that gave photons mass (like the process that gives W bosons their mass) then photons would cease to travel at 'lightspeed'.
Nov
23
comment Speed of light, lasers and mass
'Speed of ligt' is actually a dated and misleading name for this constant. What we should really be calling it is the speed of massless particles.
Nov
21
comment Shining object in the sky resembling a star
Do you have an iPad? There are a couple of great free apps for identifying both celestial objects and satellites.
Nov
21
comment Do photons age in a medium?
@Biruman Photons always travel at the speed of light. They never travel at a different speed
Nov
20
comment Time Slowing Down
Are you wearing your watch? If so, its speed is zero meters-per-second with respect to your eyes, and so the clock in your watch and the "clock" in your head will tick at the same rate.
Nov
17
comment If time travel to the past is not possible why is this situation considered in Feynman diagrams?
I'm not an expert on the details, but as I understand things this idea has been since been ruled out. It was a very promising possibility in Feynman's day though.
Nov
16
comment Principle of relativity - a second, equivalent form, using invariants
No. Otherwise Galileo would haves discovered special relativity