Good morning Profesor Röntgen, What are you going to do today?
I was planning an experiment in to see the Cathode rays.
A cathode ray is a beam of electrons in a vacuum tube traveling from the negatively charged electrode at one end to the positively charged electrode at the other. When this occurs we are able to see the different currents traveling.
Wilhelm Röntgen's laboratory, inside the University of Wuzburgo, 1895.
With this device we will send the currents and they will bounce off the wall creating light lines. But we must turn off the light first.
That's impossible. Somehow a weird light went through the wall.