<p align="right">Last Update: <font color="#4f81bd">November, 25, 2024</font></p>
## BIG IDEAS
- Published in 1905 by [[Albert Einstein]].
- Special relativity provides a new invariant (everyone measures the same value), called the [[Spacetime|spacetime]] interval, which combines distances in space and in time.
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>[!note]
>Einstein, in The Foundations of the General Theory of Relativity, Ann. Phys. 49 (1916), wrote "The word 'special' is meant to intimate that the principle is restricted to the case."
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### Related Topics
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[[Home|Home]] | [[The Universe]] | [[Special Relativity]] | [[Length Contraction]] | [[Spacetime]] | [[Mass-Energy Equivalence]]