Founded in 2003, California-based eyewear retailer Zenni Optical offers more than 4,000 glasses and sunglasses designs, along with a range of lenses tailored to meet specialized needs. While some ...

Tachometry, the measurement of the speed of spin of rotating objects, is a common application. Some of those objects, however, have quirky aspects that make them extra interesting, even scary. One ...

Before jumping on in we have one question on our minds: what is an optical illusion? What is an optical illusion? Optical illusions are visuals that tend to be deceptive to the eye and brain. This is ...

For a vehicle too rank as one of the most iconic sports cars ever made, it has to have some features about it that are instantly recognizable and, while they can be refined over decades and new ...

Optical coherence tomography (OCT) is a type of noninvasive imaging test. Ophthalmologists use OCT to create high-resolution, cross-sectional images of the inside of a person’s eye. OCT can help an ...

WASHINGTON — The National Reconnaissance Office announced Dec. 5 it has signed agreements with five commercial providers of electro-optical satellite imagery, including four startups that are just ...

GameSpot may get a commission from retail offers. Cyberpunk 2077: Phantom Liberty has several items, armaments, and implants for you to try out. One equipment in particular helps you plan a stealthy ...

How optical illusions work has been long-debated among scientists and philosophers, who wonder whether these illusions stem from neural processing in the eye or involve higher-level cognitive ...

For about as long as the internet's existed, images have circulated of JFK wearing the hell out of rolled-up Oxford shirts, faded crewneck sweatshirts, and one particularly rad pair of tortoiseshell ...

Once you've purchased a new tachometer, thoroughly read the instruction manual. Then determine where you want to position the tach. Locating it on top of the dash may work on a race car, but it can be ...

Theremin is an electronic musical instrument that can be played without physical contact. When playing a Theremin, the performer controls the volume and pitch with his/her hand position relative to ...