The Eiffel Tower Can Be 15 cm Taller in Summer: Due to thermal expansion, the metal expands when it gets hot, making the tower slightly taller during warmer months.
Various observations of distant galaxies have shown that the universe is expanding at an enormous rate. Other data show that it is gradually cooling, leading to the possibility that the universe will end when it freezes.
0.5% of the male population are descended from Genghis Khan. (Scientists did a study in 2003 showing that about 16 million dudes share a Y chromosome with the famous Emperor.)
Women have bigger butts than men because of their hormones!
This swell toward the bottom is directly linked to evolution, indicating a woman is able and ready to reproduce.
Benjamin Franklin is credited with the actual invention of the rocking chair in 1710, although other sources claim it was invented by farmers or by early cabinetmakers.
