The Earth's atmosphere weighs about 5.5 quadrillion tons.
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The smell of freshly cut grass is actually a plant distress call.
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Scientists are attempting to create a synthetic brain by reverse-engineering the mammalian brain down to the molecular level. A cellular human brain is predicted possible by 2023. It hopes to shed light on consciousness.
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Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
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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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