The Discovery of Thorium
Thorium, initially discovered in a mineral called thorite, found its first major application in gas lamp mantles in the late 19th century. Its radioactivity was revealed by both Gerhard and Marie, leading to significant advancements in understanding radioactive decay and half-lives. Although once widely used, thorium's application has diminished due to safety concerns, replaced by non-radioactive materials.In this clip
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Thorium
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