Not Martha's 2010 tutorial for creating a Christmas tree bauble mobile that looks like an invisible tree is great, simple, and disarmingly effective.
For the top of the mobile I needed something that would allow me to easily secure a lot of hanging points without them sliding around too much. The perfect thing turned out to be a 17-inch steamer rack bought for about $6 from a restaurant supply store (I found mine at Encore Restaurant Equipment in the SODO neighborhood of Seattle). The rack comes with folding feet attached that were easy to pop out with a little bending. Turn the rack upside down and the spots where the legs were secured neatly become four hanging points...
...I used jewelry monofilament secured with crimp tubes to hold the ornaments. I simply created loops at both ends. I made a bunch of different lengths (details on that below). I secured each line to points in the rack grid using lanyard hooks, and hung a basic wire ornament hook at the bottom ends. The lanyard hooks at the top are strong enough to hold heavier ornaments, and because they close they won’t fall off if the mobile is bumped. The basic ornament hooks allow one to easily move ornaments around from one spot to another. My tip to you: Keep the lines as separate as possible while you’re working with them. I spent more time untangling clear threads than doing anything else on this project. It was maddening. After I discovered just how maddening I started hanging them in groups by length from a curtain rod and weighing them down with an ornament to keep them separated, doing this made the hanging of the ornaments go quickly.
Christmas tree ornament mobile, how-to
(via Super Punch)
Zero-knowledge proofs are one of the most important concepts in cryptography: they’re a way to “validate a computation on private data by allowing a prover to generate a cryptographic proof that asserts to the correctness of the computed output” — in other words, a way to prove that something is true without learning the details.
Retroworks’ $18 decoder rings don’t have much by way of cryptographic robustness (they compare disfavorably to the cipher-wheel wedding rings my wife and I wear!), but they’re not a bad way to introduce the littlies in your life to the idea of habitual secrecy. (via Red Ferret)
This week (and next due to the nature of different release dates for the direct market and the book market) marks the release of the first collection of SHADE THE CHANGING GIRL v.1: Earth Girl Made Easy, which compiles issues 1-6 (previously). It’s a heavy load to recreate a character that giants before you have written. Steve Ditko is a master of the strange. His mind a merry-go-round of experimentation.
The Fader Stealth Quadcopter from TRNDlabs packs incredible flight performance into a package small enough to land on your phone screen, and it’s available now in the Boing Boing Store.The Fader’s six-axis gyroscope module gives it perfect balance in the air. This makes the onboard 720p HD camera all the better for shooting amazing flight […]
Although fully autonomous vehicles aren’t yet allowed on public streets, they are poised to dominate the roads in the not-too-distant future. But before that happens, Apple, Google, Uber, and other companies now investing in self-driving tech are going to need talented developers that can account for the dizzying array of factors at play when a […]
The PiCar-V learning kit comes with everything you need to build a Python-powered robot, and it’s currently being offered in the Boing Boing Store.