If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
Scientists in Germany have developed a candy that doesn't cause cavities.
11
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
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