Isaac Newton developed calculus back in the mid-1600s as a tool to explain physical phenomena, in particular the motions of planets. As it turned out, it was also a way to encode how things move and change more generally, from economies to populations of rabbits and foxes.
Cut, join, and weave bamboo to make
a beautiful shiorido tea garden gate.
Supercapacitors are among the coolest of so-called passive electronic components. Because they are ultra-high-capacity capacitors, they can function as batteries capable of being very rapidly charged and briefly powering many electronic circuits and even small motors with bursts of power.
Here’s a classic skill-and-action game updated for you to make and play. You and your opponent each start your robot at the top of the playfield.
This project is a continuation of my quest to build a robotic clock that can write and rewrite the time continuously, day in and day out. My first attempt, Doodle Clock, was a failure due to the marker drying up.
DuckyPad is a 15-key, do-it-all mechanical macro pad that helps streamline and speed up your workflow by automating keyboard (and mouse!) inputs. It features a sleek design and all the goodies of a high-end keyboard — mechanical switches, hot-swap sockets, RGB LEDs for each key, and USB-C.
Some people love to launch model rockets, and personally I’ve always wanted to launch a stratospheric balloon up to “the edge of space.” We don’t exactly do the same thing for the same reasons, but there’s one thing we would all love: to have our payload come back to Earth exactly where we want.
The Solar Bottle Lamp is a solar-powered light that reuses a waste plastic bottle by attaching a 3D-printed solar lamp in place of the old plastic cap.
Edge-lit displays typically consist of an etched sheet of acrylic, with one edge embedded in an opaque base containing a light source. The light diffuses through the acrylic to make the etchings glow.
It is a profoundly human compulsion to change our environment to suit ourselves, and the quarter-trillion-dollar US home décor industry presents a playful (and profitable) example: We bedeck our living spaces to express ourselves and illustrate our individuality.
Wearable glowing accessories — we often associate them with Halloween costumes or a packed concert. While those are definitely fun, I wanted to make elegant jewelry, fit to wear on a night out with friends or a casual day at work.
It’s 15 years since LilyPad — learn what’s new and make your first iron-on circuit!