Most readers will have some idea of how a camera works, with a lens placed in front of a piece of film or an electronic sensor, and the distance between …read more (https://hackaday.com/2023/11/16/probably-the-largest-selfie-camera-in-the-world/)

Tech In Plain Sight: What Does a Yellow Light Mean?
https://hackaday.com/2023/11/16/tech-in-plain-sight-what-does-a-yellow-light-mean/

The traffic light is a ubiquitous feature of modern life and is quite old — dating back to 1868 London, although that device was a modified railroad semaphore operated by …read more (https://hackaday.com/2023/11/16/tech-in-plain-sight-what-does-a-yellow-light-mean/)

A 3D Printed Grinder for Printed Lens Blanks
https://hackaday.com/2023/11/16/a-3d-printed-grinder-for-printed-lens-blanks/

When one thinks of applications for 3D printing, optical components don’t seem to be a good fit. With the possible exception of Fresnel lenses, FDM printing doesn’t seem up to …read more (https://hackaday.com/2023/11/16/a-3d-printed-grinder-for-printed-lens-blanks/)

Umbrella Antenna Protects You from Rain, but Not the Way You Think
https://hackaday.com/2023/11/16/umbrella-antenna-protects-you-from-rain-but-not-the-way-you-think/

You never know when you’ll be called upon to [MacGyver] your way out of an emergency. We can’t imagine what kind of situation would call for whipping up a satellite …read more (https://hackaday.com/2023/11/16/umbrella-antenna-protects-you-from-rain-but-not-the-way-you-think/)

ColorReplica Is a Rainbow At Your Fingertips
https://hackaday.com/2023/11/16/colorreplica-is-a-rainbow-at-your-fingertips/

Have you ever wanted to match paint to the color of a pillow, or make a website where the primary color matches your favorite shade of electrolytic capacitor? Then ColorReplica …read more (https://hackaday.com/2023/11/16/colorreplica-is-a-rainbow-at-your-fingertips/)

No TP? No problem!
https://hackaday.com/2023/11/16/no-tp-no-problem/

Among First World Problems, there can be few worse than running out of toilet paper. The horror! If you’re not able to do as we did yesterday and borrow a …read more (https://hackaday.com/2023/11/16/no-tp-no-problem/)

Robot Hand Has Good Bones
https://hackaday.com/2023/11/16/robot-hand-has-good-bones/

What do you get when you mix rigid and elastic polymers with a laser-scanning 3D printing technique? If you are researchers at ETH Zurich, you get robot hands with bones, …read more (https://hackaday.com/2023/11/16/robot-hand-has-good-bones/)

A Canned Ham Ham Antenna
https://hackaday.com/2023/11/16/a-canned-ham-ham-antenna/