It's possible to make a Coandă effect drone, as Tom Stanton demonstrates. The effect describes the tendency of a fluid jet to stay attached to a convex surface. The air flows over the top of the bowl-shaped devices 3D printed for lift. Last year, he demonstrated the same thing on a hovercraft that did not need an apron to keep the craft aloft.
Image: YouTube / Tom Stanton
Map Happenings posted a retrospective of the Etak, the original in-car navigation computer from 1985. The simple and unambigious monochrome display looks great! Lacking GPS, the technical tricks it used… READ THE REST
"Mini rope bridges" are being installed in England's ancient forests, writes the BBC, to help hazel dormice travel around the treetops. Two tiny 65ft bridges have so far been installed… READ THE REST
Rust armorer Hannah Gutierrez-Reed, convicted of manslaughter for her sloppy handling of guns and ammunition on the movie set after star Alec Baldwin shot and killed cinematographer Halyna Hutchins, is… READ THE REST
TL;DR: Revamp your digital world with this incredible lifetime license to Microsoft Windows 11 Pro, with its seamless interface and top-notch security, for only $29.97 (Reg. $199) until 11:59 PM on 1/07.… READ THE REST
TL;DR: Save over $350 on a refurbished Apple iPad Pro 10.5" 256GB, plus a free accessories bundle, with this sweet deal on sale for just $315.99 right now. Tech fans, it's time… READ THE REST
TL;DR: The perfect last-minute holiday gift for an aspiring rocker, the 2024 Guitar Lessons Training Bundle is only $15.97 (Reg. $480) until 11:59 PM on 12/25. It's really never too late to make… READ THE REST
