Frame Antenna Works the Low Bands
https://hackaday.com/2021/12/22/frame-antenna-works-the-low-bands/

The lower the frequency of radio transmission, the more antenna that will be needed in general. [OM0ET] wanted to work the 80M to 20M ham bands and decided to turn …read more (https://hackaday.com/2021/12/22/frame-antenna-works-the-low-bands/)

New Holographic Display Hacks the Light Field
https://hackaday.com/2021/12/22/new-holographic-display-hacks-the-light-field/

[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/