Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Sound travels fifteen times faster through steel than through air.
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Billions of neutrinos pass unnoticed through your body every second.
6
The smell of freshly cut grass is actually a plant distress call.
31
Iron weighs more after it rusts.
68
4.5 pounds of sunlight strike the Earth each day.
27
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
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