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Physics, Astronomy & Cosmology / how can we say that galaxies displaces or shifts their position?

« on: 05/12/2015 12:06:32 »

*Does the galaxies revolve around something?
(and if they really do then what is it?)
*N do they have a routine orbit like planets around sun or it's random? []

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Physics, Astronomy & Cosmology / What would happen if I connected a pipe from the atmosphere into space?

« on: 04/12/2015 18:08:21 »

What would be the possible outcomes if a connecting pipe is kept on the boundary of atmosphere and space with one end in atmospheric layer and the other in the space.. []

Please present all topic titles as a question, as per site guidelines - Moderator.

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Physics, Astronomy & Cosmology / Does a perfect blackbody exist?

« on: 02/12/2015 20:05:12 »

Is there anything like perfect blackbody which absorbs light completely and reflects nothing  []

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Physics, Astronomy & Cosmology / Is a stationary object in space really stationary?

« on: 30/11/2015 13:13:01 »

Can we put a needle completely stationary in space? And waht can prove that it is actually an absolute stationary?  [B)]

5

New Theories / unique DNAs reformation

« on: 29/11/2015 14:15:29 »

Each and every living or alive being has a unique DNA but that in case of a few is repeated over time it is just modified a little due to changes in ages....... ..I don't exactly know what a theory is but if u think the point is correct then tell me or if is incorrect then correct me.  []

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Physics, Astronomy & Cosmology / By how much has the mass of the Earth changed over the planet's lifetime?

« on: 29/11/2015 09:28:18 »

If there were and are meteorites and asteroids falling on earth since the beginning of time. How much the mass of earth have changed !? []