While mercury thermometers can measure temperature within one degree Celsius, digital thermometers can be as accurate as 0.001 degrees C a difference of four orders of magnitude in accuracy. This changeover won’t be a big deal for the average person “In fact, you can’t buy [mercury thermometers] anymore,” Strouse said.
In this regard, are mercury thermometers banned?
Those days have passed. Since 2001, 20 states have banned mercury “fever thermometers” for medical use, and regulations tighten every year. Many pharmacies now carry only sterile digital replacements or the less accurate ones with red glop in the bulb.
Hereof, can I use mercury thermometer?
No, you should not use your old glass thermometer that contains mercury. These types of thermometers were found in nearly every house and hospital at one time before digital thermometers were available. The mercury thermometers were difficult to read and so did not always provide accurate information.
Can you touch mercury?
If you touch it, a small amount may pass through your skin, but not usually enough to harm you. Mercury is most harmful when you breathe in the vapors that are released when a container is open or a spill occurs. Pregnant women, infants and young children are particularly sensitive to the harmful effects of mercury.
After shaking the mercury down, place the thermometer under the child’s tongue, with the bulb toward the back of the mouth. Tell your child to keep the lips firmly closed, but not to bite the thermometer. 3. Leave the thermometer in place for 3 minutes.
The more modern thermometer was invented in 1709 by Daniel Fahrenheit. It was an enclosed glass tube that had a numerical scale, called the Fahrenheit scale. The early version of this thermometer contained alcohol and in 1714 Fahrenheit developed a mercury thermometer using the same scale.
As a result, a number of states have banned or limited the sale of mercury thermometers, including California, Oregon, Rhode Island, Maine, Maryland, Indiana, Minnesota, and New Hampshire.
why are glass thermometers rarely used today? it contains mercury which is a dangerous element. Threat of mercury spills and leak. … Then the thermometer can be rotated until the mercury column can be seen inside the glass rod.