The sector, also known as the compass of proportion, is a fun and easy-to-use calculating device that uses the power of geometry to perform a variety of useful math jobs. Although at first glance a sector might seem as quaint and old-school as a slide rule, it can do at least a few maker-style jobs better, faster, […]
In times like these you learn to … lather up. Everybody needs hand hygiene, everywhere.
Most of us have experienced power outages. While brief interruptions are unpleasant, lengthy outages that can occur after severe weather, forest fires, and earthquakes can cause loss of food stored in refrigerators and freezers unless a backup generator is available.
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.
