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+2 Physics General Physics Gravitation interesting question

Does gravity travel instantaneously?

Does gravity travels instantaneously? Or it travels equal to the speed of light. Answer: No clear answer now. If we believe in the Theory of relativity, Gravity (Gravitational Waves travel with the same speed as that of light in vacuum. If gravitons are like photons, then it makes sense too. However I invite you to think […]

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Ask Physics caption escape velocity Project relativistic travel Relativity time dilation TWIN twin paradox

What is twin paradox?

TWIN PARADOX is a paradoxical situation coming in while explaining the theory of relativity. “Time dilation” is one of the important consequences of relativity. It says that if a body is moving with relativistic speeds, time will dialate …

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Accelerated Motion and Gravity Equivalence

It seems a principal of Einstein’s General Theory of Relativity that there is an equivalence between accelerated motion and being in a gravitational field.  It seems that an observer would have no way to tell the difference between these two states.  However, the gravitational force being mediated by elementary force carrying particles (gluons I think), […]

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faster than LIGHT Interesting Questions Relativity tachyons

What are Tachyons?

What are Tachyons? This question was posted by Vimal Raj. Answer: Tachyons are hypothetical particles which always travel faster than light. The idea is that, if there is a particle which travels with a speed less than the speed of light, it will never cross the speed of light. But if there are some partricles …Read the full post

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Physics Online project submission Experiment

Students of Kendriya Vidyalaya Pattom created their first Online Physics Project blog at http://kvphysics.blogspot.com The teachers found this an effective way of submission and evaluation of data collection projects, which help the students getting trained in effect online content writing and blogging as well as the subject topic of interest. The students submitted their projects […]