Iron weighs more after it rusts.
16
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
Research indicates that plants grow healthier when they are stroked.
173
No matter how cold it gets, gasoline will not freeze.
107
In zero gravity, a candle's flame is round and blue.
16
Sound travels fifteen times faster through steel than through air.
134
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9