TED-Ed: Einstein's twin paradox explained | Amber Stuver

The video explores the twin paradox, where identical twin astronauts, Tara and Stella, experience different aging rates due to Stella's space journey at 86.6% the speed of light. Special relativity explains that time passes slower for Stella, resulting in her being younger than Tara upon return. The Lorentz factor and light signals are used to illustrate time dilation and length contraction. The paradox is resolved by understanding that Stella's change in reference frames makes her a non-inertial observer, unlike Tara, who remains at rest.

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