Thursday, January 11, 2018

How would night sky look like if the speed of light was infinite?


Would it be brighter? Different color? Gravitational lensing? Would black holes exist?





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classical mechanics - Moment of a force about a given axis (Torque) - Scalar or vectorial?

I am studying Statics and saw that: The moment of a force about a given axis (or Torque) is defined by the equation: $M_X = (\vec r \times \...