Franck–Hertz experiment

[Sensei]

Hello!

 

I was searching for what new apparatus to buy and found device for Franck–Hertz experiment for 700 usd.

http://www.sci-supply.com/Franck-Hertz-Experiment-p/ss20801.htm

 

If you're not familiar with experiment you can read details here

http://en.wikipedia.org/wiki/Franck%E2%80%93Hertz_experiment

 

Basically: accelerated electron loses its kinetic energy of 4.9 eV and excites mercury atom, which is then emitting 4.9 eV UV photon.

 

Video on YouTube showing experiment

https://www.youtube.com/watch?v=W0GqNtsmaYU

 

Best Regards!

 

ps. They also have a lot of other interesting stuff.. Oil drop experiment apparatus just $430.

http://www.sci-supply.com/Millikan-Oil-Drop-Apparatus-p/ss2438.htm

Van De Graaff generator 250 kV for $220

http://www.sci-supply.com/Van-De-Graaff-Generator-250KV-p/ss2311.htm

Anybody can afford it (especially scientist interested in quantum physics)..