In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Out of all the senses, smell is most closely linked to memory.
146
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
A ball of glass will bounce higher than a ball made of rubber.
73
Cold water weighs more than hot water.
93
Pure water (H2O) does not conduct electricity on its own.
46
The average home creates more pollution than does the average car.
33