If you only watch one childbirth video in your life, consider this popular one. It's completely safe for work (and for the faint of heart), featuring ping pong balls and a balloon. I've already given birth, and I learned a lot.
NightHawkinLight shows how he made a carbon filament light bulb. He starts by showing how an electric arc light works (invented in 1802 by noted nitrous oxide aficionado Sir Humphrey Davy), then moves to incandescent lighting. He ends up making a working incandescent light bulb. READ THE REST
Brit Cruise is the writer and producer of a YouTube series called Art of the Problem. Someone recently recommended it on Cool Tools, and for good reason. The show description: "Each episode presents an ancient problem and follows its journey from prehistoric through modern times. We tell the origin story of modern fields of study."… READ THE REST
Illustrator Yukai Du created this lovely animation of Richard Karban's TED talk on plant communication. READ THE REST
If you're going on a trip, it isn't enough to bring your smartphone and your tablet and your laptop. You also have to bring all the charging cables for your phone. And the one for your tablet. And the charging brick plug-in. And the ones for your laptop. Before you know it, the stockpile of… READ THE REST
For years, karaoke was relegated to those places with a dedicated system and an archive of tracks for use. Now, Karaoke On Demand essentially gives you frustrated artists the chance to bring your song stylings out of the bar and into the outside world 24/7/365…whether the world is ready for you or not. Karaoke On… READ THE REST
With everyone looking for increased portability from all their necessary items, it's a surprise monocular telescopes haven't eclipsed binoculars yet. But it may not be too long before these lightweight marvels are nudging their way past their big, bulkier brother as the instrument people reach for to get a quality view from a distance. While… READ THE REST