Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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One cubic foot of gold weighs more than 1,200 pounds!
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The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
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According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
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Out of all the senses, smell is most closely linked to memory.
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The Earth's atmosphere weighs about 5.5 quadrillion tons.
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The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
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Brass doorknobs automatically disinfect themselves in about 8 hours.
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