• 6 Posts
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Joined 2 年前
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Cake day: 2023年8月9日

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  • All the successful theories were developed from experimental results. From real data.

    This is not really true. Lots of very well tested theories in physics came from math first, and then experimentation upheld them.

    Einstein developed general relativity based on mathematical principles (Riemannian geometry and the equivalence principle) with little direct experimental input. And then successfully predicted the light of distant stars bendng around the sun.

    Paul Dirac formulated a relativistic equation for the electron. The math naturally predicted the existence of a positron which was discovered years later.

    Peter Higgs and others proposed the Higgs field to explain why particles have mass within the Standard Model, in 1964. It wasn’t detected in experiments until 2012.

    Maxwell’s unification of electricity and magnetism led to the prediction of electromagnetic waves. 20 years later Hertz detected them.

    Just months after Einstein published general relativity, Karl Schwarzschild found a solution predicting black holes. With no data at all! Sure enough, we’ve observed them and their effects many times.

    Mathematics often leads the way in physics.










  • Yeah, it looks like you’re right. Not sure what I read years ago. This is what Wikipedia says:

    Mikao Usui originated the practice in Japan. According to the inscription on his memorial stone, Usui taught his system of reiki to more than 2,000 people during his lifetime. While teaching reiki in Fukuyama, Usui suffered a stroke and died on 9 March 1926.

    So, apparently before 1926. Still, really far away from “ancient”.