Laser scanning microscopes are useful for all kinds of tiny investigations. As it turns out, you can build one using parts salvaged from a Blu-ray player, as demonstrated by [Doctor Volt]. The trick ...

CeB 6 and tungsten are both thermionic sources with a filament referred to as a cathode, from which electrons are generated. The emission begins when the electrons are supplied with sufficient energy ...

Researchers developed a method to enhance 3D imaging of lithium-ion battery electrodes, improving visualization of internal ...

Lithium-ion batteries charge and discharge because their lithium ions can move in both directions between positive and negative electrodes. Lithium-ion batteries have generally been used in a compact ...

In brief: Even though Blu-ray players have been mostly replaced by streaming and video-on-demand services, they can still serve a purpose. A resourceful YouTuber shows he could turn said player into a ...