The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Iron weighs more after it rusts.
68
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Diamonds can be shattered with a hammer.
-104
Sound travels fifteen times faster through steel than through air.
134
Scientists aren't sure what color dinosaurs were.
312
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