An electron beam, aimed at a phosphorescent screen, ... An oscilloscope is a device for displaying signals that are too fast to be seen by the human eye.

Do you still have an old analog CRT television lying around? With the advent of digital signals, analog TV´s are going to the dumpster or the recycling center. But you can still put them to good u… ...

A few years ago [Ben Krasnow] built a scanning electron microscope from a few parts he had sitting around. He’s done a few overviews of how he built his SEM, but now he’s put up a great… ...

The SEM gets its name because the electron beam scans the surface of the sample; the resulting image is basically a video of a still subject. To create that video, Krasnow bought an old oscilloscope.

The spin-resolved oscilloscope will promote investigations in both plasmonics and spintronics; for example, this device will aid studies of electron dynamics in various 1D systems.

image: The spin-resolved oscilloscope is established by combining spintronic and plasmonic devices, i.e., a spin filter and time-resolved charge detectors. view more Credit: Masayuki Hashisaka ...

An electron beam causes dust to release electrons into the tiny spaces between particles. Some of these negatively charged electrons are absorbed by surrounding dust specks.