Scientific discovery can be achingly slow, but it was moving swiftly in the 1890s. X-rays had been discovered in Germany just a few days before Christmas in 1895. Several months later, while researching these new X-rays, the French physicist Henri Becquerel accidentally discovered another new mysterious type of ray when he detected radiation emitting from uranium.
from General Physics News - Science News, Physics News, Physics, Material Sciences, Science https://ift.tt/2EFe7HU
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