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Topic: A device/devices that let us know whats inside a thing  (Read 2397 times)

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BrunoFilip

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A device/devices that let us know whats inside a thing
« on: August 18, 2017, 01:13:22 PM »
Hello everyone, so I have a question...

For example, if you go in nature and pick some herb, is there a way to determine what molecules
are in that herb ?

Or if you want to test a pill and see what is in it?

Or you want to test a gold nugget and see exactly what is in it beside gold ?

Or if you want to know exactly what you are eating and you want to test
for example a piece of bread or  a popcorn and see what chemical compunds, molecules are in it?

What are these devices called?
Are they very expensive ?
Are they accurate and will show every single thing thats in some material or are there molecules/atoms that could hide to such device?

Offline Borek

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Re: A device/devices that let us know whats inside a thing
« Reply #1 on: August 19, 2017, 06:36:24 AM »
There is no one, single device, that will work in every case.

Price of the more fancy ones can be easily in the range of M$.

In a way one of the most expensive devices built ever (LHC) is just a device to see "what's inside", although it aims not at molecules, but several levels deeper ;)

Some information to get you started: https://en.wikipedia.org/wiki/Spectroscopy
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