We’ve all likely seen the amazing images possible with a scanning electron microscope. An SEM can yield remarkably detailed 3D images of the tiniest structures, and they can be invaluable tools for ...

The most popular 3D printing process for making metal parts is laser powder-bed fusion (LPBF). It uses a laser beam to scan 2D patterns over a flat bed of powdered metal to form melt tracks that fuse ...

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 ...

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 ...

Over the past decade, more than 100 coal-fired plants have been replaced or converted to natural gas, according to the U.S. Energy Information Administration. Key factors pushing coal plant owners to ...