Two "lost" Peter Cushing movies, in which he plays 'Dr. Who,' have just enjoyed a massive reissue. Here's what to know.

Looking to choose between the Dangbei Mars Pro 2 and JMGO N1S Pro 4K? Compare their 4K laser performance, color accuracy, ...

Jean-Michel Jarre’s sci-fi concert returns in a deluxe Blu-ray edition, bringing lasers, drones and electronica from ...

The Anker Nebula X1 truly delights for a portable projector (just) under $3,000. It's an investment yes, but you can spend a lot more cash and walk away with fewer features. While it's not as off-road ...

Blu-ray first made its appearance in 2005 (and was released in 2006), ... It gets its name from the blue-ish colour of the laser used to read the disc, ...

The Klein Tools 93LDM200 is the only tool in the test with a green laser, and it was by far the brightest and easiest to see at farther distances. It also had the second-best distance rating in the ...

Blu-ray discs are read using a 405 nanometer laser diode that, while often referred to as “blue,” technically falls in a shorter, violet wavelength.

CDs needed a 780 nm laser, while DVDs needed a 650 nm laser, which the human eye sees as red. The blue-violent laser that gives Blu-ray its name, though, is 405 nm, which applies to both versions ...

DIY Blu-Ray Laser Scanning Microscope Part 2: Shooting Images-YouTube Volt says that the Blu-ray player is basically the same as a laser scanning microscope, and the necessary equipment can be ...

Blu-ray players work in a similar way: the "blue" diode beams a 405 nm laser onto a Blu-ray disc surface, and then an optical sensor converts the reflected light into a binary digit ("1" or "0 ...

As spotted by Hackster.io this week, a YouTuber named Doctor Volt recently detailed their two-part journey of turning a Samsung BD-J5900 Blu-ray player into a laser-scanning microscope.

YouTube’s Doctor Volt repurposed a Blu-Ray drive, which are now easy to find on the cheap in the era of streaming content, to build a simple scanning laser microscope. A couple of custom ...