Aluminum used to be more valuable than gold!
84
Sound travels fifteen times faster through steel than through air.
134
Cold water weighs more than hot water.
93
Each day, up to 150 species of life become extinct.
-23
The smell of freshly cut grass is actually a plant distress call.
31
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79