How can just two rules of Einstein's 1905 theory of special relativity lead to seemingly paradoxical changes in the perception of time?
Want exclusive updates whenever a new video is posted? Sign up here! http://www.physicsgirl.org/signup

This video was inspired by a special relativity class in high school. Special relativity was one of the first subjects that made me go, “wow, that’s really how the world works?!” It stretched my imagination, as I hope the twin paradox will yours.

Airplane footage: Ben Bloomberg, Derek Muller
Rocket Footage: NASA

Thanks to Bobak Hashemi and Kyle Kitzmiller for helping film

Help us translate our videos! http://www.youtube.com/timedtext_cs_p...

Instagram:   / thephysicsgirl  
Twitter:   / thephysicsgirl  
Facebook:   / thephysicsgirl  
http://physicsgirl.org/

Music: "Ticker," "Good Starts," Locally Sourced," "Space Coast"