Scientists aren't sure what color dinosaurs were.
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German chemists made a replica of a trophy the size of one molecule.
68
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
One ragweed plant can release as many as one billion grains of pollen!
51
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
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.
6
One cubic foot of gold weighs more than 1,200 pounds!
78