“The Kivin method is an exciting way of performing oral sex,” says sex and relationship expert Annabelle Knight, author of ...

Forget hunting for a tape measure or a protractor. Use your Android phone camera and sensors to handle different types of measurements easily.

Eric Gilbertson receives funding from The American Alpine Club. In the middle of a chilly October night in 2025, my two friends and I suited up at the Cottonwood Creek trailhead and started a trek ...

Sometimes, in what’s a near-endless proliferation of advanced metrics and tools across baseball, it feels like it’s all spreadsheet talk, that some of these terms exist only in the realm of analysts.

A new method for quantifying grandeur is reshuffling the pecking order of the planet’s most impressive peaks. Turns out Everest has steep competition. Mount Everest, left, tops out at 29,032 feet ...

Abstract: To achieve a digital access to measurement of relative attitude between two separate objects, a separable digital protractor based on IMU is designed. The protractor consists of a pair of ...

Many people wonder what the average penis size is. The truth is that penises are like any other body part and vary in shape and size. One study found that the average penis size is about 3.9 inches (9 ...

Mobility. While grip strength isn't necessarily used when you're walking, it's associated with mobility. People with physical limitations are more likely to have decreased grip strength.‌ Overall ...

Draw geometric shapes using mirrors and reflected laser light. Improve your aim—and practice spatial reasoning—by bouncing laser light off a series of mirrors. Learn about geometry and discover the ...