A quasar is another name for a quasi-stellar object.
It looks like a star but emits as much radiation as an entire galaxy, with a volume far smaller than that of our Milky Way galaxy.
No one knows what a quasar is; recent evidence suggests it might be a galaxy with a big black hole at the center.
At the Pacific Ocean’s greatest depth-36,198 feet (in the Marianas trench southwest of Guam), the pressure is 16,124 pounds per square inch, more than 1,000 times the atmospheric pressure at sea level (14.7 pounds per square inch).
The plates (solid segments of the earth’s crust and upper mantle) that consist mostly of continents move at an average speed of about 2 centimeters per year. Europe and North America are moving apart at about this speed. The plates that are mostly under the oceans move faster, at an average speed of about 10…
Your mother was right. You lose about half to three-fourths of heat from your head.
The three states or territories with the highest voter turnout in the 1988 presidential election, in descending order, were: 1. Minnesota. 66.3 percent 2. Montana. 62.41 percent 3. Maine. 62.15 percent The three states or territories with the lowest turnout, in ascending order, were: 1. Georgia. 38.79 percent 2. South Carolina. 38.91 percent 3. District…
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…
A gamete is a mature, functional sex cell (i.e., an egg or sperm) that can unite with a gamete of the opposite sex. A zygote is what results when the two gametes fuse.