But on the train, you are closer to the bolt of ... he believed violated fundamental laws of physics. One of Einstein's thought experiments had to do with quantum entanglement, which he called ...

An curved arrow pointing right. Einstein reveals how to manipulate time. Produced by Delano Samuels and Jessica Orwig. Illustrations by Dragan Radovanovic. Follow BI Video: On Twitter More from ...

He called these scenarios Gedankenexperiments, which is German for thought experiments. Here are a few thought experiments that demonstrate some of Einstein's most groundbreaking discoveries.