Electric Boomerang Does Laps

Boomerangs are known for their unique ability to circle back to the thrower, but what if you could harness this characteristic for powered for free flight? In a project that spins the traditional i…

Design Secrets Of Fantastic, Hand-made Puzzle Boxes

[Kagen Sound] is a woodworker and artist who gives a great behind-the-scenes look at his amazingly high-quality puzzle boxes (video). Not only do his varied puzzle box designs show his math backgro…

3D Printed RC Kart Actually Made Entirely By Hand

If we told you somebody built a 3D printed go-kart, you’d expect to see a certain sequence of events. A bit of work in CAD, a printer montage, then some assembly. That’s not the case he…

Hotshot 3D Printed Hovercraft Is Devastatingly Fast

These days, it’s pretty cheap and easy to build your own little RC hovercraft. [ValRC] demonstrates just that with a hovercraft build that is surprisingly nimble, and fast to boot. The build …

A Hydroelectric Dam, Built Out Of LEGO

Hydroelectric dams are usually major infrastructure projects that costs tens of millions of dollars to construct. But they don’t have to be — you can build your own at home, using LEGO,…

The NSA’s Furby Artificial Intelligence Scare: FOIA Documents Provide Insight

For those of us who were paying a modicum of attention to the part of the news around 1999 which did not involve the imminent demise of humanity due to the Y2K issue, a certain toy called a ‘…

Massive Water Rocket Is Impressive But Accessible

Water rockets are one of those projects that never get old, and bumping the size just adds to the challenge. In the video after the break, [ARRO Rockets] takes us through the launch of Gamma IV, hi…

Is This The World’s Smallest N-Scale Train Layout?

There’s just something about miniature worlds — they’re just so relaxing to look at and ponder. Think you don’t have ample room for a model train layout at your place? You m…

Computer Logic Spins With No Electricity

We’ve often said you can make a logic gate out of darn near anything. [The Action Lab] agrees and just released a video showing how he made some logic gates from chains and gears. Along the w…

Learn Sailing Mechanics Without Leaving Dry Land

The ancient art of sailing can be very intimidating for the uninitiated given the shifty nature of wind. To help understand the interaction of wind direction and board orientation, [KifS] designed …

The Giant LEGO You Always Wanted To Play With

The interlocking LEGO bricks are probably one of the most versatile toys to come out of the 20th century, but aside from the Duplo larger-sized version for smaller kids, they don’t come in wh…

Countdown To A Spaceship Simulator

[Jon Petter Skagmo] claims that the spaceship simulator he’s working on is for his daughter, but we think there’s an excellent chance he’s looking to fulfill a few childhood dream…

Sound-Reactive Light Saber Flips Allegiance Via Vowel Sounds

Students [Berk Gokmen] and [Justin Green] developed an RP2040-based LED-illuminated lightsaber as a final project with a bit of a twist. It has two unusual sound-reactive modes: disco mode, and vow…

Building A Rad Super Capacitor RC Plane

[Tom Stanton] is a fan of things like rubber band planes, and has built many of his own air-powered models over the years. Now, he’s built a model powered by a supercapacitor for a thoroughly…

How A LEGO Set Is Born

LEGOs are the first window into making something in your head become real for many makers. The Verge dug into how a LEGO set itself goes from idea to the shelves. While most sets come from the mind…

Is Microsoft BASIC Hidden In This Educational Child’s Toy?

The VTech PreComputer 1000 is a rather ancient toy computer that was available in the distant misty past of 1988. It featured a keyboard and a variety of simple learning games, but does it also fea…

That Time NASA Built A Tiny Tank To Pop Shuttle Tires

The Space Shuttle has often been called the most complex pieces of machinery ever built, an underhanded complement if there ever was one. But it’s a claim not strictly limited to the final sp…

Testing Various Properties Of LEGO-Compatible Axles

If you ever wondered what’d happen if you were to use LEGO Technic parts, but they were made out of something other than plastic, the [Brick Experiment Channel] has got you covered. Pitting o…

Hot Wheel Car Becomes 1/64 Scale Micro RC Car, Complete With Camera

If you enjoy watching skilled assembly of small mechanical systems with electronics to match, then make some time to watch [Max Imagination] transform a Hot Wheels car into a 1/64th scale RC car co…

3D Printed Dump Truck Carries Teeny Loads

What do you do when you already have a neat little radio-controlled skid-steer loader? Well, if you’re [ProfessorBoots], you build a neat little dump truck to match! The dump truck is built o…