Cold water weighs more than hot water.
93
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
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
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Diamonds can be shattered with a hammer.
-104
A ball of glass will bounce higher than a ball made of rubber.
73
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79