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
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
The only letter not appearing on the Periodic Table is the letter "J".
180
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Scientists aren't sure what color dinosaurs were.
312
Most dust particles in your house are made from dead skin!
67
The sun is 330,330 times larger than the earth.
75