[Petapixel] has an interesting post about a startup company’s new holographic display that claims to be “indistinguishable from reality.” The company behind it, Light Field Labs, claims their system requires …read more (https://hackaday.com/2021/12/22/new-holographic-display-hacks-the-light-field/)

Experiments with a Nernst Lamp
https://hackaday.com/2021/12/22/experiments-with-a-nernst-lamp/

Every biography of Edison talks about how the secret to the incandescent lamp was to remove the air from the bulb. That’s true when you use conventional filaments, but a …read more (https://hackaday.com/2021/12/22/experiments-with-a-nernst-lamp/)

A Simple 3D Printed Gear Clock Shows Off How It Works
https://hackaday.com/2021/12/23/a-simple-3d-printed-gear-clock-shows-off-how-it-works/

Analog clocks are beautiful things inside, using ornate gear trains to keep track of time in a dance of mechanical beauty. However, all too often, the complexity is hidden inside. …read more (https://hackaday.com/2021/12/23/a-simple-3d-printed-gear-clock-shows-off-how-it-works/)

Back-to-Back Belts Drive Filament in This Unique Extruder Design
https://hackaday.com/2021/12/23/back-to-back-belts-drive-filament-in-this-unique-extruder-design/

It’s hard to say when inspiration will strike, or what form it’ll take. But we do know that when you get that itch, it’s a good idea to scratch it, …read more (https://hackaday.com/2021/12/23/back-to-back-belts-drive-filament-in-this-unique-extruder-design/)

How To Get Into Cars: E85 Fuel
https://hackaday.com/2021/12/23/how-to-get-into-cars-e85-fuel/

If you’ve spent any time around the modified car scene in the last few years, you’ve probably heard about E85. Maybe you’ve even noticed a sweet smell emanating from the …read more (https://hackaday.com/2021/12/23/how-to-get-into-cars-e85-fuel/)

OpenCV Knows Where Your Hand Is
https://hackaday.com/2021/12/23/opencv-knows-where-your-hand-is/

We have to say, [Murtaza]’s example game in his latest video isn’t very exciting. However, the OpenCV technique he uses to track a hand and determine its distance from a …read more (https://hackaday.com/2021/12/23/opencv-knows-where-your-hand-is/)

Keynote Video: Jeremy Fielding Wants To Help You Get Moving
https://hackaday.com/2021/12/23/keynote-video-jeremy-fielding-wants-to-help-you-get-moving/

For many DIY hardware projects, the most movement it’s likely to see is when we pick the assembled unit up off the workbench and carry it to wherever it’s destined …read more (https://hackaday.com/2021/12/23/keynote-video-jeremy-fielding-wants-to-help-you-get-moving/)

Simple Upgrades Make an Old Industrial Sewing Machine New Again
https://hackaday.com/2021/12/23/simple-upgrades-make-an-old-industrial-sewing-machine-new-again/