such as looking at overlapping blue circles on your screen or shining a light through the lenses onto photosensitive paper. Some glasses even come with their own test kits. We’ve tried these ...

Do blue light glasses actually work? Though they claim to reduce eyestrain and headaches and help you sleep better, no robust research confirms that blue light-blocking glasses support your eye ...

OBAs react with UV light to produce a cooler blue tone that counteracts the natural yellows found in paper ... This can pose a threat to the longevity of fine art or photographic prints. Can I use any ...

While his main areas of expertise are maker tools -- 3D printers, vinyl cutters, paper printers, and laser cutters -- he also loves to play board games and tabletop RPGs. Expertise 3D printers ...

In addition to duplex printing, it can duplex scan, and it has both a touchscreen and a front USB Host port. There’s plenty of room for paper and ink on board, which will suit a heavy workload ...

Claire Gillo and the AP team pick the best instant cameras and printers on the market, including Polaroid, Fujifilm Instax, ...

Need just printing, or have to scan and copy, too? Seeking low-cost ink, or a low-cost printer? Here's how to choose the right printer for home or work, backed by our top lab-tested picks.

Developed as a collaboration between PocketBook, E Ink and Sharp, the InkPoster only draws power when it switches the art on ...

Designed to produce high-quality print copies, this Brother Laser printer can print with a speed of up to 36ppm and holds 250 sheets in the paper tray. This printer supports the Brother app so you ...

I've outlined here the best home and office AIO printers we've tested. Our top pick is Brother's MFC-J4335DW, a champ for light printing ... less-expensive printers. Paper handling for scanning ...

In 1831, a massive volcanic eruption caused the Sun to appear blue. Scientists have finally solved the long-standing mystery of the Sun turning blue in Earth's atmosphere almost 200 years ago.

The authorities have removed curbs due to pollution in Delhi and nearby cities, after light rain improved air quality in the region.