The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
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
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9