Einstein Probe's Wide-field X-ray Telescope (WXT) detected a burst of low-energy X-rays. Astronomers call such X-rays "soft," even though they are still far more energetic than visible or ultraviolet ...
To express his ideas mathematically, Einstein needed new math : Riemannian Geometry: In 1912, Einstein’s friend Marcel Grossmann introduced him to Riemannian geometry and tensor analysis. This ...
Doctors at another Philadelphia hospital have voted to unionize, and two more groups of physicians could soon join them.
A Precision Test of General Relativity. While Einstein’s famous theory of general relativity accurately describes the motion of celestial bodies in our solar system, less is kno ...
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