Mach 20 In A Wind Tunnel: Yes, It’s Rocket Science
https://hackaday.com/2021/11/04/mach-20-in-a-wind-tunnel-yes-its-rocket-science/

Hypersonic speeds are defined by those exceeding Mach 5, and lately there’s been a lot of buzz about unmanned hypersonic vehicles making test flights. Vehicles returning from orbital flight also …read more (https://hackaday.com/2021/11/04/mach-20-in-a-wind-tunnel-yes-its-rocket-science/)

Weird Al’s Monster Battlestation Is Now Just A Reasonably Fast PC
https://hackaday.com/2021/11/04/weird-als-monster-battlestation-is-now-just-a-reasonably-fast-pc/

Wanna be hackers? Code crackers? Slackers. If the vintage computing community ever choose an official anthem, count my vote for It’s All About The Pentiums by “Weird Al” Yankovic. More …read more (https://hackaday.com/2021/11/04/weird-als-monster-battlestation-is-now-just-a-reasonably-fast-pc/)

Curious Marc Takes on Sewing Machine Repair
https://hackaday.com/2021/11/04/curious-marc-takes-on-sewing-machine-repair/

Even the most talented engineers can be stymied by simple repair projects. In this case, repairing a broken sewing machine has [CuriousMarc] all tangled up.  [Marc] is probably best known …read more (https://hackaday.com/2021/11/04/curious-marc-takes-on-sewing-machine-repair/)

Spooky Winners of the Halloween Hackfest Contest
https://hackaday.com/2021/11/04/spooky-winners-of-the-halloween-hackfest-contest/

It was a tight race, but the results of the Halloween Hackfest contest are in. We asked you to scare up a terrifying build in one of three categories, and …read more (https://hackaday.com/2021/11/04/spooky-winners-of-the-halloween-hackfest-contest/)

Three More Remoticon Speakers Complete the Lineup
https://hackaday.com/2021/11/04/three-more-remoticon-speakers-complete-the-lineup/

You know, it’s hard to believe, but Hackaday Remoticon 2021 is just two weeks away. Every year, we work hard to make the ‘con a little better and brighter than …read more (https://hackaday.com/2021/11/04/three-more-remoticon-speakers-complete-the-lineup/)

3D-Printed Braiding Machine Will Show You the Ropes
https://hackaday.com/2021/11/04/3d-printed-braiding-machine-will-show-you-the-ropes/

A maypole braider, aka a circular braider, is a type of horn gear braider that makes braided tubes, like one of those woven finger traps or that lovely bit of …read more (https://hackaday.com/2021/11/04/3d-printed-braiding-machine-will-show-you-the-ropes/)

Big RGB LED Cube You Can Build Too
https://hackaday.com/2021/11/04/big-rgb-led-cube-you-can-build-too/