Henry van Dyck of Veritasium wanted a number, not a slogan. Classroom posters and superhero movies have spent years saying silk spider webbing beats steel. In a video he co-wrote and co-hosted with Derek Muller, he took that claim into Professor Todd Blackledge’s spider lab at the University of Akron and put live threads on a tensile tester, without harming the animals that made them.
Light a small spirit lamp of ethanol and heat finds one end of a sealed brass cylinder. Air inside expands, a piston moves, a flywheel gathers speed, and a cheap electric motor wired as a dynamo starts feeding current into a wooden box. An analog voltmeter on the front climbs. A 2.42-inch monochrome screen flickers to life. Sixteen hex keys wait for input. For as long as the flame holds, YouTuber PickentCode has a working computer.
Comcast started rolling out Xfinity Shield this month, and the free piece that has everyone talking is WiFi Motion. Eligible internet customers who rent a recent Xfinity gateway can turn their existing Wi-Fi into a basic movement watcher without buying cameras or extra sensors. Radio waves already fly between the gateway and other gadgets that stay plugged in. A person walking through those paths changes how the waves arrive, and software in the box treats that change as motion.
In 2008 Peter Serafinowicz walked onto a BBC set in the role of an Apple store employee and introduced Mactini, the smallest computer in the world. One key. Press it once for A. Press it 26 times for Z. For a comma, hold four seconds, lift for two, then fire off a rapid little drum fill. The audience laughed. Apple kept making things smaller anyway.
Every year, families forget the same dates, a birthday passes by, and an anniversary card is bought two days late. Three phones and a scrap of paper attached to the refrigerator are used to keep holiday shopping lists. Dragon Touch’s 15.6-inch TM15 digital calendar, priced at $149.99 (was $160), is a plug-in device that sits on the same wall or counter, keeping everything in one place and visible from across the room.