Spacetime

Mr. Andersen explains the concept of spacetime, combining space and time, as introduced by Einstein's theory of relativity. He discusses how gravity and velocity affect spacetime, leading to phenomena like time dilation. Examples include astronauts experiencing slower time on the International Space Station and the need for GPS satellites to adjust for time dilation. The video concludes with the idea that space and time are not absolute but relative, especially at high speeds or strong gravitational fields.

What new insight or understanding did you gain from this video?