A Blue whale´s heart is so big a small child could swim through the veins. If you dug a hole to the center of the earth and dropped an object, it would take 45 minutes until it hits the "ground". There are more bacterial cells in your body then actual body cells. A compressed spring weighs more then a relaxed one. We know more about the surface on the moon then the bottom of the ocean. There are more atoms in a glass of water then there are glasses of water in all the oceans on earth. The great pyramid of Giza was built around 2560BC, Cleopatra lived around 69-30BC. First moonlanding was in 1969 which means Cleopatra lived closer to the moonlanding then she did to the building of the Great Pyramid in Giza.