Scientists aren't sure what color dinosaurs were.
312
Out of all the senses, smell is most closely linked to memory.
146
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
The average temperature at 40,000 feet above sea level is -60 F.
56
Hot water can freeze faster than cold water.
181
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