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If a thermometer breaks and the mercury goes in your pool is it dangerous?
Modern thermometers don't use mercury, they use a colored alcohol solution... and yes it would be dangerous.
Why clinical thermometer is jerked before using it again?
If you have an old thermometer that has mercury, then the shaking makes all of the mercury flow to the bottom of the thermometer. Then, you can get a better reading. The current digital ones work differently. Thermometers used for taking people temperatures are a special kind that go up with heat but don't go down with cold. So you have to shake a thermometer before taking your temperature to make the reading go down below your own temperature. Then the thermometer can go up again to read your temperature.
Difference between clinical thermometer and other thermometer?
You would likely have different ranges and accuracies for different thermometers. I'm using Fahrenheit. Many newer thermometers would be in Celsius, including those used in hospitals/clinics, or in other parts of the world outside of the USA. A clinical thermometer might read from about 80°F to 110°F, and would be accurate to 1/10 or 2/10 degrees. They can be digital, mercury, or even plastic disposable. They normally have a method to lock in the maximum temperature (like the old ones that you had to shake down). Modern clinical thermometers will either have a disposable plastic cover for the non-disposable variety, or will be 100% disposable. Ocular ear thermometers are a new type of infra-red thermometers. A household thermometer might read from -20°F to 120°F, and might only be accurate to 1 or 2 degrees. If the thermometer is a glass thermometer, the scale is never written on the actual thermometer. A scientific thermometer might have a range up to the boiling point of water... is often in Celsius (-10°C to 110°C), and accurate to a degree Celsius (2 degrees Fahrenheit) or so. A cooking thermometer might have a range of 100°F to 500°F. There may be some glass (or disposable) cooking thermometers, but many are also metal for durability.
The way in which themometers measure temperature?
All 'old' thermometers measure temperature as a difference between the thermal expansion of two substances. Every substance expands at a slightly different rate. Mercury, for example, expands at a large and consistent rate; while glass hardly expands at all. This makes them a very accurate combination in a thermometer (at low temperatures, -20 to 150 deg C 'ish). Other thermometers use two strips of different metals stuck together, like a double layered cake. When heated or cooled one strip expands more than the other so the strips will curl, the amount of curl indicates how much the temperature has changed. The best substances for 'old' thermometers have a high (fast) thermal conductivity. Modern inferred (laser) thermometers measure the amount of heat being emitted by an object. Essentially it measures the total energy of photons being emitted by a given area. NB. the laser is just used to help aim the thermometer; it plays no part in the actual measurement.
Who discovered the thermometer?
Who invented the thermometer?While the Greeks made simple thermometers (instruments for measuring temperature) as early as the first century B.C., Italian astronomer (a scientists specializing in the study of the stars, planets, and heavenly bodies) Galileo Galilei (1564-1642) is credited with inventing the modern thermometer. Called an air thermometer, it was a device in which a colored liquid was driven down by the expansion of air. As the air got warmer and expanded, the liquid dropped. In 1612 Italian physician Santorio Santorio (1561-1636), a friend of Galileo, adapted the device to measure the body's change in temperature due to illness. A century later, in 1714, German physicist Daniel Fahrenheit (1686-1736) invented the mercury (a metallic element) thermometer. Thermometers in use today, contain liquid mercury, which rises as it gets warmer.
What are modern thermometers made of?
Modern thermometers are typically made of materials such as glass, plastic, or metal. The most common type of modern thermometer is the digital thermometer, which includes a temperature sensor and a digital display screen. Other types of modern thermometers may contain mercury or alcohol as the temperature-sensitive material.
Does a red thermometer smell?
If it is a modern version, yes. Most "air temperature" thermometers use colored alcohol mixes instead of mercury (the vapor of which can be very toxic).
What are thermometer made of?
Modern thermometers are made of alcohol or Mercury, and uses the Fahrenheit scale and the Celsius scale.
If a thermometer breaks and the mercury goes in your pool is it dangerous?
Modern thermometers don't use mercury, they use a colored alcohol solution... and yes it would be dangerous.
What chemical element is used in thermometers?
the element used in termometers is Mercury.
What substance is used inside most thermometer's?
Alcohol is most common in modern thermometers. Early thermometers used mercury, but these pose a possible health threat. Today, both are being replaced by electronic instruments.
How is mercury used in the modern world today?
Mercury is used in thermometers barometers and flourescent lightbulbs.
What dangerous liquid used in thermometers?
Mercury would be the dangerous liquid used in thermometers. Many modern thermometers are made without mercury for safety reasons, but if a thermometer breaks and you're not sure, it's better to be careful with the cleanup.
Why do you put thermometers on body for 1 minute?
Older thermometers took about a minute for the body temperature to warm the mercury in the glass bulb so that it reached body temperature and a reading could be taken. Modern thermometers are much faster and do not need to be kept for a minute.
How should a thermometer be sterilized?
Digital thermometers should have a plastic sleeve, but even with that, you should use an alcohol swab to thoroughly wet, rub it and allow it to air dry after each use. Some of the digitals will have battery and "mother board" problems if you wash them in soapy water. The old-timey mercury thermometers and modern non-digital thermometers can be soaked in alcohol over night or washed with warm soapy water and then swabbed with alcohol, allowed to dry and returned to their cases. Since you can get digital thermometers for less than 10.00, it is a good idea to have a thermometer for each person in your family....and if you are really germ-phobic you can replace them after every illness...but that is overkill, IMO.
What is the best thermometer to use on people?
An aural (in ear) thermometer is a good modern device, and measures the temperature in the outer ear. It is more expensive than a mercury clinical thermometer, but is simpler to prepare between patients, and completely avoids the problems of broken glass thermometers, and spilt mercury. Mercury clinical thermometers are however quite cheap.
Do modern thermometers contain mercury?
Yes. Most standard lab thermometers are either alcohol or mercury filled.
