What is the difference between brass and bronze?
Brass is an alloy of copper and zinc.
Bronze is a more durable mixture of copper and tin.
The hyoid bone resides by itself in the throat and does not connect with other bones. It supports the tongue and its muscles.
Quicksand doesn’t work by pulling you down. Quicksand is nearly always found above a spring, which creates a supersaturated condition that makes the sand frictionless and unable to support weight. In addition, quicksand is airless, which creates suction as you struggle to get free. The most effective way to escape quicksand is to position yourself…
The sensation, called neurapraxia, usually occurs when a nerve is compressed between a bone and another hard object. Blood continues to circulate through the affected area.
The earliest era of geologic time is the Precambrian age. It began when the earth’s crust formed, 4.6 billion years ago, and ended with the dawn of the Cambrian period, 570 million years ago. About seven-eighths of earth’s history since the formation of the crust took place during the Precambrian age.
The explosion of a star is called a supernova and is estimated to release 10^49 ergs or 1 followed by 49 zeros. By comparison, pronouncing an average syllable releases 200 ergs, and the first atom bomb produced 1021 ergs.
As of 1988, 764,247 members of the U.S. military were on active duty.