Balsa wood is classified as a hard wood!
41
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Sound at the right vibration can bore holes through a solid object.
134
Pure water (H2O) does not conduct electricity on its own.
46
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
Each day, up to 150 species of life become extinct.
-23
The average home creates more pollution than does the average car.
33
No matter how cold it gets, gasoline will not freeze.
107