10 Relativistic Mass

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Such a damn perfect explanation still wondering why small crowd there this video diserves 1M at least

physicsunlimited
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This is incorrect. Mass and/or energy does not increase, that's why it's called "invariant".
If a spaceship travels at a constant 1g acceleration rate it would achieve about 95% light speed in 1 year. No matter how fast the ship goes everything would be normal from its perspective. A cup of tea on board will always weigh the same provided the ship keeps accelerating at 1g. We are all traveling at the speed of light relative to some potential vantage point.
The phrase "mass becomes infinite at the speed of light" does not mean mass increases, it means mass becomes spread throughout spacetime relative to an outside observer. Time dilation is just one aspect of dilation/gamma/y, it's not just time that gets dilated.

shawns