Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Aluminum used to be more valuable than gold!
84
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
Iron weighs more after it rusts.
68
Each day, up to 150 species of life become extinct.
-23
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
Sound travels fifteen times faster through steel than through air.
134