Have you ever sat down and thought “I wonder if a trebuchet could launch a projectile at supersonic speeds?” Neither have we. That’s what separates [David Eade] from the rest …read more (https://hackaday.com/2021/12/01/supersonic-projectile-exceeds-engineers-dreams-the-supersonic-trebuchet/)

Remembering Sanjay Mortimer, Pioneer and Visionary in 3D Printing
https://hackaday.com/2021/12/01/remembering-sanjay-mortimer-pioneer-and-visionary-in-3d-printing/

Over the weekend, Sanjay Mortimer passed away. This is a tremendous blow to the many people who he touched directly and indirectly throughout his life. We will remember Sanjay as …read more (https://hackaday.com/2021/12/01/remembering-sanjay-mortimer-pioneer-and-visionary-in-3d-printing/)

SuperCapacitors vs Batteries Again
https://hackaday.com/2021/12/01/supercapacitors-vs-batteries-again/

https://www.youtube.com/watch?v=Orf9segRLv0
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2021/11/Snap-2021-11-30-at-17.58.33-featured.png?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2021/11/Snap-2021-11-30-at-17.58.33-featured.png?w=800">Supercapacitors are definitely not the same as batteries, we all know that. They tend to have a very low operating voltage, and due to their operating principle of storing charge …read more (https://hackaday.com/2021/12/01/supercapacitors-vs-batteries-again/)

Don’t Walk Past This 3D Printed Pedestrian Crossing Light
https://hackaday.com/2021/12/01/dont-walk-past-this-3d-printed-pedestrian-crossing-light/

There’s just something so pleasing about scaled-down electronic replicas, and this adorable 3D printed pedestrian crossing light by [sjm4306] is no exception. Although a little smaller than its real-world counterpart, …read more (https://hackaday.com/2021/12/01/dont-walk-past-this-3d-printed-pedestrian-crossing-light/)

Listening to the Sounds of an 1960s Military Computer
https://hackaday.com/2021/12/01/listening-to-the-sounds-of-an-1960s-military-computer/

Restoring vintage computers is the favorite task of many hardware hackers. Retrocomputing probably makes you think of home computer brands like Commodore, Amiga, or Apple but [Erik Baigar] is deeply …read more (https://hackaday.com/2021/12/01/listening-to-the-sounds-of-an-1960s-military-computer/)

Two Mars Orbiters Chatted for Atmospheric Science
https://hackaday.com/2021/12/02/two-mars-orbiters-chatted-for-atmospheric-science/

Mission extensions for interplanetary robot explorers are usually continuations of their primary mission. But sometimes the hardware already on board are put to novel uses. European Space Agency has started …read more (https://hackaday.com/2021/12/02/two-mars-orbiters-chatted-for-atmospheric-science/)

Play Doom or GTA V With Your Own Custom Controller and Xbox Emulator
https://hackaday.com/2021/12/02/play-doom-or-gta-v-with-your-own-custom-controller-and-xbox-emulator/

[Arnov] is bringing his own custom-made controller to the party and it is sure to impress. The design appears to have been inspired by the Xbox controller layout. Two joysticks …read more (https://hackaday.com/2021/12/02/play-doom-or-gta-v-with-your-own-custom-controller-and-xbox-emulator/)

Keebin’ with Kristina: the One With the Cat Keyboard
https://hackaday.com/2021/12/02/keebin-with-kristina-the-one-with-the-cat-keyboard/