Airports that are at higher altitudes require a longer airstrip due to lower air density.
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4.5 pounds of sunlight strike the Earth each day.
27
The smell of freshly cut grass is actually a plant distress call.
31
Sound travels about 4 times faster in water than in air.
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Balsa wood is classified as a hard wood!
41
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
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.
10
German chemists made a replica of a trophy the size of one molecule.
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