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Helium is used to detect leaks.
no
One instrument that used to detect Tsunami is a deep ocean tsunami detection buoys.
You are not supposed to use buret reagent to detect sugar carbohydrates in a solution. Buret reagent is used to detect proteins. Try using iodine ( I2KI)
It does not appear that vibration testing is being used to detect earthquakes. Scientists have been using accelerometers built in computers to help them detect upcoming earthquakes.
Electroscope
A hair test, won't say when you've used, only if you have used.
A gold leaf electroscope is used to detect charges on a body
Yes.
Absolutely yes, but keep in mind that it does not grow at the same rate as hair on your head and has a 'maximum length'.
Hairs can be used to detect DNA of the killer or to identify the victim. Hairs can also be tested for poison.
A hair follicle test can be used to identify specific drugs used by the person being tested. The test can usually detect drug usage over a longer period of time.
The Biuret test.
A nine panel hair test is used to detect all of the common illegal drugs. This type of test is used for jobs in which the employee must meet extremely strict safety requirements.
it is dangerous because you might get an electrical shock
Hair samples may be used to detect nuclear dna even if the root is not present. This is because hair is made up of every substance that enters the body.
The H2O in your hair would evaporate quickly.