what's the time travel and relativity

what's the relativity and why it is called not possible.

#Physics

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Comments

Are you asking what is relativity in Physics, and does it enable time travel? As I understand it, time travel is theoretically possible, but practically just not going to happen. When the new star tek cam out a few years ago this guy laid out some rules for what fime travel should look like. http://blogs.discovermagazine.com/cosmicvariance/2009/05/14/rules-for-time-travelers/#.UPh5AYnjm2R I read a Brief History of Time and thought it had a decent, qualitative description of what special relativity is. I don't know what the better book or web resources are out there for more info on relativity. I was told to not even mess with general relativity till I've had a ton more math.

Michael Pedersen - 8 years, 4 months ago

Math	Appears as
Remember to wrap math in `\(` ... `\)` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$