Right now we’re throwing a two-day hackathon in Pasadena. As with all hackathons, people are going to build something, but that’s only going to happen today. Yesterday was an incredible Zero to Product talk that goes over PCB layout techniques, manufacturing, and schematic capture. In a seven hour talk, our own [Matt Berggren] took the audience through building a product, in this case a little ESP8266 breakout board. We livestreamed this; the video (and electric pickles) are below.
A few weeks ago, the folks at the 23b hackerspace held Sparklecon, an event filled with the usual infosec stuff, locks and lockpicking, and hardware. A con, of course, requires some cool demonstrations. They chose to put a pickle in an arc welder, with impressive results.
This build began several years ago when the father of one of 23B’s members pulled off a neat trick for Halloween. With a cut and stripped extension cord, the two leads were plugged into a pickle and connected to mains power. The sodium in the pickle began to glow with a brilliant orange-yellow light, and everyone was suitably impressed. Fast forward a few years, and 23b found itself with a bunch of useless carbon gouging rods, a 200 Amp welder, a pickle, and a bunch of people wanting to see something cool.
The trick to making a pickle brighter than the sun was to set the arc just right; a quarter of an inch between the electrodes seemed optimal, but even then pickle lighting seems very resilient against failing jigs made from a milk crate, duct tape, and PVC. Video (from the first Sparklecon, at least) below.
The fantastic people at MIT have taken it upon themselves to explain how an OLED works. Their visual aide in this explanation is an electrocuted pickle. This helps describe how OLEDs are actually constructed from organic material. Many of you probably already know how they work, but for those who don’t this video will clear up any questions you might have. Even if you do know how OLEDs work, you may learn something too. We hadn’t realized how amazingly thin the displays are.