Sound travels about 4 times faster in water than in air.
408
The smell of freshly cut grass is actually a plant distress call.
31
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
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
One 75-watt bulb gives more light than three 25-watt bulbs.
57
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16