Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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A 'jiffy' is an actual unit of time for 1/100th of a second!
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German scientists claim to have evidence that suggests that our universe may exist inside of a computer simulated Matrix.
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The Earth's atmosphere weighs about 5.5 quadrillion tons.
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Optical illusions occur when what the eyes see conflicts with what the brain expects.
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