6. Fulgurite is the name for fossilized lightning. They are natural hollow glass tubes formed in quartzose sand, or silica, or soil by lightning strikes and are formed when lightning with a temperature of at least 1,800 degrees Celsius instantaneously melts silica on a conductive surface and fuses grains together. The image above is a fulgurite.
7. When Anders Celsius (1701â€“1744) created the celsius scale, he invented it upside-down with 0 ℃ being the boiling point of water and 100 ℃ being the freezing point. It was reversed in the year of Celsiusâ€™ death by Carolus Linnaeus.
8. When dropped on a very hard, rigid surface, glass balls and steel balls will bounce higher than rubber ones. The reason is that rubber balls deform significantly on impact, flattening onto the surface, and then springing back. In the process of this squashing, some energy is lost. [Source - physics.illinois.edu]
9. 65 Million years ago, a meteor impact in Chicxulub, Mexico caused megatsunamis thousands of feet high. It is believed by some scientists that this impact was the single cause of the extinction of the dinosaurs. [More]
10. Sound travels much faster through a steel than it does air: Sound travels at 5100 m/s through steel, 1480 m/s through water and 330 m/s through air.