Tough Mudder stages the most difficult obstacle courses on Earth. The courses run up to 10 miles and take over two hours to complete. The obstacles were designed by British Special Forces, and they're ...

Why are millions of people paying to suffer through Tough Mudders and Spartan Races? In his new documentary, Rise of the Sufferfests, director Scott Keneally seeks to find out why obstacle course ...

Mark Rober, the YouTuber and former NASA engineer responsible for everything from blasting porch pirates with glitter bombs to educating people on how germs spread, has made a squirrel-proof bird ...

Shini talks to us about optical instruments and how they make magnification possible. How do lenses work? How do they form images? Well, in order to understand how optics work, we have to understand ...

Obstacle course racing (OCR) and mud runs have been popular since 2012—nearly 500,000 people participated in 2017 according to a recent industry report. Odds are if you are a runner, many of your ...