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
Hot water can freeze faster than cold water.
181
Aluminum used to be more valuable than gold!
84
The only letter not appearing on the Periodic Table is the letter "J".
180
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
One 75-watt bulb gives more light than three 25-watt bulbs.
57
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20