Cathode Ray

[MedPR]

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Why/how do you know that a "Cathode Ray" is a beam of electrons and not protons?

 

[milski]

It's a convention, you'll have to memorize it one way or another. A ray of protons would be an anode ray.

 

[SaintJude]

Can I hijack (don't like that terminology at all) this thread, dear MedPr?

Is there a specific reason why glass was used for the cathode ray tube?

 

[milski]

Can I hijack (don't like that terminology at all) this thread, dear MedPr?

Is there a specific reason why glass was used for the cathode ray tube?

It's inert, transparent and cheap-ish. You could probably make a ceramic CRT but you won't be able to sell many TVs with it. 😉

 

[MedPR]

Can I hijack (don't like that terminology at all) this thread, dear MedPr?

Is there a specific reason why glass was used for the cathode ray tube?

haha of course, I already got my answer anyway 🙂

Cathode ray = electrons, anode ray = protons.

Anions migrate toward anode, electrons flow from anode to cathode.

You would think an anode ray would be electrons, since electrons flow from the anode to the cathode. Oh well.