Recent content by sandu123

Both are different aspects or outcomes of the theory of relativity. The length contraction doesn't actually have anything to do with actual change in physical properties of an object..Its the measurement that is important here. Length of an oblect in an accelerating frame may seem to be ,or is...

Thanks a lot:)

I think absolute object,and absolute time are itself misnomers. The last statement,about a person being alive at v=c is not important,i think ,because,we need not be in the accelerating frame in order to measure the speed then. Recent experiments at Gran Sasso have hinted towards neutrinos...

Thank you all for your valuable replies. Is dark energy same as the cosmological constant Einstein mentioned in his equations? If so,it would turn out that he was right,after all.

Thanks for replying.I have heard that there are a lot of contenders for dark matter like neutralinos.If there is so much dark matter,then why is it difficult to detect?I also have a doubt regarding whether dark energy aids in accelerating the expansion of universe.Would someone please find some...

Yes Penzias and Wilson,if my knowledge is right.What confuses me is the theory of multiverses. If our universe was just one among many,then there must be a number of big bangs resulting in their own universes. That must mean that these expanding universes might stop expanding and lead to the so...

Would anybody please tell me why dark matter has remained so elusive? Whats the actual composition and what are the practical difficulties when dealing with studying it??