The pupillary distance (PD) measurement is a requirement for people who want to purchase eyeglasses. Here, find out how to measure your PD using a mirror and a ruler. Share on Pinterest Some eyewear ...

Paul Sutter is an astrophysicist at The Ohio State University and the chief scientist at COSI Science Center. Sutter is also host of the podcasts Ask a Spaceman and RealSpace, and the YouTube series ...

Trying to figure out the “as the crow flies” distance between two points using Google Maps is simple if you know where to look. With a few clicks on your computer or taps on your phone, Google Maps ...

You can measure horsepower at home by timing RPM climbs, calculating wheel speed from tire size and gear ratios, and comparing the results to SAE net specs.

The driveshaft is an often overlooked, yet critically important component of a vehicle's drivetrain. Not only must it be strong enough to contend with the engine's output but it must also operate ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Fractions: If you’ve ever had difficulty with fractions, using a tape measure just ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? When shopping for a new TV, picking the right dimensions to perfectly fill the space ...

Your phone can double as a digital measuring tape. Here is a simple guide on how to use your phone’s built-in AR measuring ...

Marketing campaigns may have different goals, such as raising brand awareness, boosting sales or increasing event attendance. But all campaigns require a company’s resources, whether that’s money from ...