Introduction to the Four Vector - Newtonian mechanics - Fundamentals of Physics - Ramamurti Shankar - Lecture 14 of 24 - Video-lecture

Video-lecture, Advanced Physics

Description: The four vector is introduced that unifies space time coordinates x, y, z and t into a single entity whose components get mixed up under Lorentz transformations. The length of this four vector, called the space time interval, is shown to be invariant (the same for all observers). Likewise energy and momentum are unified into the energy momentum four vector.
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