The only letter not appearing on the Periodic Table is the letter "J".
180
In zero gravity, a candle's flame is round and blue.
16
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Aluminum used to be more valuable than gold!
84
Iron weighs more after it rusts.
68
German chemists made a replica of a trophy the size of one molecule.
68
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39