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
Out of all the senses, smell is most closely linked to memory.
146
Diamonds can be shattered with a hammer.
-104
Nearly 50% of the world's scientists are assigned to military projects.
71
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5