Liquid TIDE laundry detergent glows under a blacklight.
96
The force of a suction cup is calculated using F=AP.
15
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Most dust particles in your house come from dead skin.
48
The smell of freshly cut grass is actually a plant distress call.
31
The bark of an older redwood tree is fireproof.
65
In zero gravity, a candle's flame is round and blue.
16