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visits member for 2 years, 9 months
seen Jul 4 at 5:51

Jul
2
awarded  Curious
Jun
26
accepted Will a prism widen a monochromatic beam?
Jun
26
comment Will a prism widen a monochromatic beam?
Could you provide a reference for the use of oscillating mirror to create a sheet of laser? I have up-voted both the answers but yours seems more complete.
Jun
25
awarded  Yearling
Jun
25
asked Will a prism widen a monochromatic beam?
Apr
1
comment Is redshift the only way by which we can tell that space is expanding?
When you say that the ruler is not expanding, is not expanding at all or is it expanding so slowly that it can't be measured? That's the primary import of my question.
Apr
1
asked Is redshift the only way by which we can tell that space is expanding?
Apr
1
comment What is the mass of the universe?
I added the last line and accepted the answer. Yeah, I guess I misread the source, but still it is very difficult to find a link which says that the mass of the universe is infinite. The word "Big Bang" in itself gives rise to so many misconceptions, that I think a simple statement saying that the mass of the universe (not the observable universe but the whole thing) is infinite, will help erase some of those misconceptions.
Apr
1
accepted What is the mass of the universe?
Apr
1
suggested suggested edit on What is the mass of the universe?
Mar
29
revised Why does the light travel slower in denser medium?
The question is based on a wrong assumption, which I have just corrected.
Mar
29
comment Redshifted from what?
A brilliant question and a prime example of what makes physics.SE such a great resource (google couldn't answer it for me). It would be even more awesomer (sic) if the user could accept Alfred's answer.
Mar
29
suggested suggested edit on Why does the light travel slower in denser medium?
Mar
29
asked What is the mass of the universe?
Dec
4
awarded  Caucus
Dec
4
awarded  Constituent
Oct
12
awarded  Quorum
Oct
11
accepted What is the magnetic susceptibility of NdFeB?
Oct
11
asked What is the meaning of uncertainty in Heisenberg's uncertainty principle?
Jul
17
awarded  Editor