Most liquid laundry detergents are alive with living organisms that help to break down stains!
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Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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If you blowtorch Pepto-Bismol, you would get a hunk of metal.
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It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
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When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
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One 75-watt bulb gives more light than three 25-watt bulbs.
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Optical illusions occur when what the eyes see conflicts with what the brain expects.
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