How long are the intestines?
The small intestine, which is contained in the central and lower abdominal cavity, is 20 to 23 feet long.
The large intestine is 5 feet long.
The hyoid bone resides by itself in the throat and does not connect with other bones. It supports the tongue and its muscles.
Twentieth-century American physicist John Archibald Wheeler (b. 1911) coined the term black hole to describe a collapsed star whose gravitational field is so intense that not even light can escape from it.
The first to approximate the speed of light roughly was French physicist Armand Fizeau (1819-1896). In 1849 Fizeau obtained a value for the speed of light that was about 5 percent too high. Fizeau’s contemporary Jean Foucault (1819-1868) obtained the first accurate measurement (within 1 percent of the correct speed) in 1862.
The highest elevation is Mount McKinley, Alaska, at 20,320 feet. The lowest is Death Valley, California, at 282 feet below sea level. The average elevation of the United States is 2,500 feet.
Fingerprints provide traction for your fingers, helping you to grasp things.
A human fetus develops fingerprints at the age of three months.