If you’ve ever suffered from dry, irritated eyes or struggled to fall asleep after a long day of staring at your computer, you may have been tempted to purchase a pair of blue-light-blocking ...

The best OBD-II scanners were once expensive luxuries that were exclusive to mechanics and other professionals. Those days are long gone, and we recommend that every driver has one to help ...

The best smart light switches let you control your lights with a phone or voice assistant and can save you money When you purchase through links on our site, we may earn an affiliate commission.

The need for a diagnostic scan tool can make interpreting a check engine light difficult. If you don't have access to one of ...

The Flickr set of the build shows [James] installing a compact fluorescent bulb in the body of the scanner. Aluminum foil reflects the light ... green, and blue LEDs to adjust the color temperature?

The scanner connects to your car's computer system and can read its internal codes to diagnose mechanical and electronic ills. That check-engine light could be related to something as simple as ...

For example, you can use stock scanners like Magnifi and Interactive Brokers to filter stocks by industry, price, the average number of shares that change hands during a day and more. Stock ...

A profitable sideline for photography shops was providing scans of film, and there were a series of high-end scanners aimed at that market. [Kai Kaufman] shares the experience of making one of ...

The best blue light glasses effectively filter blue light, reduce glare, and provide comfort for all-day wear. Jaylyn Pruitt has been working with Dotdash Meredith since May 2019 and is currently ...

Need to scan, copy, or fax, in addition to printing? An AIO printer is what you're looking for. Pick the right multifunction machine with our advice and our deep-dive reviews.

Here’s how it works. The speed of light traveling through a vacuum is exactly 299,792,458 meters (983,571,056 feet) per second. That's about 186,282 miles per second — a universal constant ...