In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Cold water weighs more than hot water.
93
Sound at the right vibration can bore holes through a solid object.
134
Each day, up to 150 species of life become extinct.
-23
In zero gravity, a candle's flame is round and blue.
16
For a high school science fair project, 17-year-old Michio Kaku built a particle accelerator in his parent's garage that was able to generate a magnetic field 20,000 times greater than the Earth's and produce collisions powerful enough to create antimatter.
34
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6