Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Indoor pollution is 10 times more toxic than outdoor pollution.
62
The smell of freshly cut grass is actually a plant distress call.
31
Diamonds can be shattered with a hammer.
-104
Sound travels about 4 times faster in water than in air.
408
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
Nearly 50% of the world's scientists are assigned to military projects.
71