Here's an unexpected use for a dead hard-drive: use its motor to power a candy-floss machine:
A Chinese engineer who operates a data recovery and hard drive repair center is being hailed as a genius after inventing a DIY candy floss machine made from a used hard disk. According to the instructions, all that is needed to create your own candy floss maker is a hard drive that can still power up, a round flat metal tin, six bicycle spokes, an aluminum can and a plastic basin. A series of photos demonstrating how to create this candy floss machine have made some sensation across China internet …
The key to the improvised cotton candy maker is the hard drive’s rotating platter. Most commercial cotton candy machines spin at around 3,450 rotations per minute, while modern hard drives operate at 5,400 rotations per minute or higher. We’re really admired this kind of DIY creation from a technical nerd …
Turning an Old Hard Disk Into a Candy Floss Machine [English, MicGadget]
技术宅拯救世界：用旧硬盘自制棉花糖机(图) [Chinese, tt.mop.com]
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.