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# How Einstein changed the way we understand gravity
- URL: https://www.cascadepbs.org/show/nova/extras/einsteins-thought-experiment-that-transformed-physics-adwf9l/
- Published: 2025-07-25T08:45:50.000Z
- Updated: 2025-07-30T03:00:20.000Z
- Description: In 1912, Albert Einstein had a revolutionary idea.
- Author: Cascade PBS Staff
- Tags: NOVA, #ZZZ_Show_8f1ff589-6222-4260-acbf-0523a6424abf, #v1.6, #ZZZ_Extra_5f447b68-99d7-4c5c-bbf4-2d84a0831cf9, #extra

To understand gravity, Einstein had to rethink space and time as a single connected fabric. He showed that mass bends this fabric, guiding how everything moves.