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Researchers have detected biophotons emitted by the human brain from outside the skull for the first time. The study found that emissions changed when participants switched between cognitive tasks, suggesting a potential role for these ultraweak photon emissions (UPEs) in brain function. While brain activity and biophoton emissions weren't directly correlated, the findings indicate a complex relationship between...

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How much gold is there in the world?

Gold, formed when neutron stars collide, is rare on Earth. Humans have mined about 206,000-238,000 tons of gold, with 70,550 tons still in economically viable deposits. Most gold is in Earth's core, enough to coat the planet in a...