a stethoscope carries the sound of your heart straight to the doctor's ears
No I can not answer
I don't really know what it is either, but if I were to take a wild guess, it would be about chimpanzees, mainly monkeys or gorillas.
A stethoscope helps a doctor by allowing him to listen to the patients heart. For example, if your heart beat is irregular, but it is very slight, quiet, elusive and hard to hear, a stethoscope allows him to hear even the most minor details.
It appears there may be a typo in your question. If you meant "stethoscope," it is a medical device used by healthcare professionals to listen to sounds within the body, such as the heartbeat and lung sounds. The stethoscope amplifies these internal sounds and helps in diagnosing various medical conditions.
The first stethoscope was invented by French physician René Laennec in 1816. It consisted of a hollow wooden tube used to listen to sounds within the body, particularly the heart and lungs. This invention revolutionized the way doctors could diagnose and monitor patients' health.
is it a stethoscope? if it is, then my answer is correct. they don't feel cold. they check your heartbeat from different directions. the end works as a speaker. it has a tiny hole which collects sound and the ear plugs emphasize it because metal is not only a good conductor of electricity, but also a good conductor of sound waves.
The stethoscope itself does not measure the heart rate, it faciltates the user of the device to measure your heart rate through listening to the beating of your heart. The health care practioner places the stethoscope chest piece on your heart, typically at the apex or bottom of the heart beneath the left breast where your left ventricle is located and then counts the heartbeats, typically for a minute or so. As well, while listening to your heartbeat at the chest, the examiner will also count your peripheral pulsations at the wrist and/or carotid (neck) to assess your pulse rate to check for potential differences between the heart rate and pulse rate. Normally the heart rate at the chest and pulse rate at peripheral body locations are in sync in healthy people without cardiovascular disease.