Did you know?
People about to have surgery must tell their health care providers about all supplements they take.
Did you know?
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
Did you know?
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
Did you know?
There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.
Did you know?
According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.
Audiometry. The child in this photograph is undergoing a hearing test with an audiologist.
Saturn and Its Outer, Giant Ring
Mass Loss from a Supermassive Star
Responses to Sound Waves
Testing hearing acuity using a tuning fork.
Look-Alike and Sound-Alike Drug Names