Sound travels about 4 times faster in water than in air.
408
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
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
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Nearly 50% of the world's scientists are assigned to military projects.
71
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Out of all the senses, smell is most closely linked to memory.
146