It takes approximately 12 hours for food to entirely digest.
93
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
By weight, Bone is five times stronger than steel.
417
A person can live without food for about a month, but only about a week without water.
156
Pain occurs when sounds are above 130 db.
124
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
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