https://www.youtube.com/watch?v=NJuoHVX2htA
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2021/10/Snap-2021-10-20-at-21.37.04.png?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2021/10/Snap-2021-10-20-at-21.37.04.png?w=800">Many hardware people around these parts will be familiar with devices used as switches, using at least three-terminals to effect this, an input, an output and a gate. Typical devices …read more (https://hackaday.com/2021/10/24/is-a-diode-a-switch/)

Hackaday Links: October 24, 2021
https://hackaday.com/2021/10/24/hackaday-links-october-24-2021/

It seems that the engineers of NASA’s Lucy spacecraft have some ‘splaining to do. The $981M asteroid-seeking mission launched without a hitch, but when the two solar panels unfolded, one …read more (https://hackaday.com/2021/10/24/hackaday-links-october-24-2021/)

The Humble NE-2 Neon Lamp Has A New Trick
https://hackaday.com/2021/10/24/the-humble-ne-2-neon-lamp-has-a-new-trick/

http://crowradioandplasmascience.blogspot.com/2021/10/acoustic-to-electric-transduction-by.html
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2021/10/NE2offon.jpg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2021/10/NE2offon.jpg?w=800">Ah, the humble neon lamp. The familiar warm orange glow has graced the decks of many a DIY timepiece, sometimes in a purely indicating duty, and sometimes forming a memory …read more (https://hackaday.com/2021/10/24/the-humble-ne-2-neon-lamp-has-a-new-trick/)

Omni-Wheeled Cane Steers the Visually-Impaired Away From Obstacles
https://hackaday.com/2021/10/24/omni-wheeled-cane-steers-the-visually-impaired-away-from-obstacles/

Sure, there are smart canes out there, commercial and otherwise. We’ve seen more than a few over the years. But a group of students at Stanford University have managed to …read more (https://hackaday.com/2021/10/24/omni-wheeled-cane-steers-the-visually-impaired-away-from-obstacles/)

Mesmerizing Mechanical Seven-Segment Display
https://hackaday.com/2021/10/25/mesmerizing-mechanical-seven-segment-display/

Seven-segment displays are ubiquitous. From where I’m writing this, I can see several without even having to swivel my chair. We’re all familiar with their classic visage; slightly italicized numbers …read more (https://hackaday.com/2021/10/25/mesmerizing-mechanical-seven-segment-display/)

Tackle the Monkey: Raspberry Pi Gets Round Screen
https://hackaday.com/2021/10/25/tackle-the-monkey-raspberry-pi-gets-round-screen/

You could argue that the project to add a round screen to a Raspberry Pi from [YamS1] isn’t strictly necessary. After all, you could use a square display with a …read more (https://hackaday.com/2021/10/25/tackle-the-monkey-raspberry-pi-gets-round-screen/)

Fail of the Week: Alternator Powered Electric Go-Kart doesn’t Go
https://hackaday.com/2021/10/25/fail-of-the-week-alternator-powered-electric-go-kart-doesnt-go/

What do you give a six-year-old who loves going fast but doesn’t like loud noises? Convert a gas go-kart to electric of course! (Video, embedded below.) That goal started [Robert …read more (https://hackaday.com/2021/10/25/fail-of-the-week-alternator-powered-electric-go-kart-doesnt-go/)

The Longest Ever Flight Was Over 64 Days In A Cessna 172
https://hackaday.com/2021/10/25/the-longest-ever-flight-was-over-64-days-in-a-cessna-172/