In 100 grams of butter, there are three times more calories than in the same amount of meat.
Landkreuzer P. 1000 "Ratte", also known as Rat, is a giant tank that the Nazis planned to make to assist them in battles in World War II, which was supposed to weigh a staggering 1,000 tons.
The first sewing machine was invented by a British inventor Thomas Saint in 1790 and it was used for sewing leather.
Dragonfly's eyes can spot its prey from a distance of 40 meters.
Cows sleep almost as long as humans.
In one day the heart beats around 100.800 times. It pumps through the blood vessels as much blood as it would take to fill about 170 average bathtubs.
