Iron weighs more after it rusts.
16
Most dust particles in your house are made from dead skin!
67
Your brain is 80% water.
525
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Iron weighs more after it rusts.
68
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
A cesium atom in an atomic clock beats over nine billion times a second.
43