Every human being shares 99% of their DNA with every other human.
Water expands as it freezes.
Liquid oxygen is blue in color.
Oxygen is the most common element in the Earth's crust.
Polar bears are nearly undetectable by infrared cameras. Thermal cameras detect the heat lost by a subject as infrared, but polar bears are experts at conserving heat.
Knowledge is growing so fast that ninety percent of what we will know in fifty years' time, will be discovered in those fifty years.
Just 20-30 seconds worth of fuel remained when Apollo 11's lunar module landed on the moon.
Hawaii is moving toward Japan 4 inches every year.
Insects do sleep.
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