Cathode Rays

The cathode is on this side.

So to create an electrical field, we have to have a cathode and an anode.

Remember from general chemistry that at the cathode, reduction takes place, so you'll have a negative charge.

The memory was in cathode ray tubes a whole bunch of spots on the face of the tube very, very sensitive to electromagnetic disturbances.

And Whewell not only coined the term scientist, as well as the words anode, cathode and ion, but spearheaded international big science with his global research on the tides.

So, very similar idea to what our transistor can do, but, instead you had a evacuated glass tube, and you had a little transmitter, it was a cathode ray tube.

And you know, the amount of work yeah, Alexey Pajitnov was working for the Soviet government and that's how he developed Tetris, and Alexey himself reconstructed the whole game and even gave us a simulation of the cathode ray tube that makes it look slightly bombed.

This effect is the basis for all motion picture technology, from our LED screens of today to their 20th century cathode ray forebearers, from cinematic film projection to the novelty toy, even, it's been suggested, all the way back to the Stone Age when humans began painting on cave walls.