All-Sky Camera Checks For Aurora

The aurora borealis (and its southern equivalent, the aurora australis) is a fleeting and somewhat rare phenomenon that produces vivid curtains of color in the sky at extreme latitudes. It’s a comm…

Building A Simple Compressed Air Cannon Is Easy

The world of warfare was revolutionized by the development of black powder, fireworks, cannons, and the like. You don’t need any of that chemical nonsense to just have fun, though, as this co…

Re-imagining The Water Supply

Getting freshwater supplied across cities and towns in a reliable and safe way is no simple task. Not only is a natural freshwater reservoir or other supply needed, but making sure the water is saf…

Homebrew Tire Inflator Pushes The Limits Of PVC Construction

Let’s just clear something up right from the start with this one: there’s literally no reason to build your own tire inflator from scratch, especially when you can buy a perfectly servi…

Scratch-Built RC Excavator Is A Model Making Tour De Force

Some projects just take your breath away with their level of attention to detail. This scratch-built RC-controlled model excavator is not only breathtaking in its detail, but also amazing for the m…

Giant Keyboard Is Just Our Type

We like big keyboards and we cannot lie, and we’ve seen some pretty big keyboards over the years. But this one — this one is probably the biggest working board that anyone has ever seen…

72 DIY Musical Instruments Played In 7 Minutes

Humans have been making musical instruments from whatever items are close at hand for thousands of years, and we aren’t showing any signs of slowing down yet, least of all artist [Nicolas Bra…

PVC Piped Transformed Into Handy Tool Box

Would you believe the multi-tiered toolbox pictured here started its life as a piece of bog standard PVC pipe? It certainly wouldn’t be our first choice of building material, but as shown in …

Substances chimiques : la Commission européenne publie sa feuille de route - Campagne DÉSINTOX

La Commission européenne a annoncé lundi 25 avril 2022 son ambition de restreindre les usages de milliers substances d’ici 2030. Cette annonce a été publiée dans une « feuille de route »...

We All Live In A PVC Submarine

We doubt you could really live in [Pena’s] PVC submarine, but now the song’s stuck in our head anyway. Although the post is in Portuguese, you can get a pretty good idea of how it works…

We All Live In A PVC Submarine

We doubt you could really live in [Pena’s] PVC submarine, but now the song’s stuck in our head anyway. Although the post is in Portuguese, you can get a pretty good idea of how it works…

Hacked Set Of Instruments Saves Musician’s Gigs

Most of the horror stories you hear about air travel seem to center around luggage. Airlines do an admirable job of getting people safely to their destinations, but checked baggage is a bit of a cr…

Giant Working NERF Gun Runs On Tiny Arduino

Well, here it is: a shoe-in for the new world’s largest NERF gun. (Video, embedded below.) The Guinness people haven’t shown up yet to award [Michael Pick], but at 12.5 feet, this baby …

USB Mouse Hack For Pachyderm Protection

When most of us think of seismometers, our minds conjure up images of broken buildings, buckled roads, and search and rescue teams digging through rubble. But when [Subir Bhaduri] his team were cha…

Automatic Coil Winder Gets It Done With Simple Hardware And Software

We’ve grown to expect seeing mechatronics project incorporate a standard complement of components, things like stepper motors, Arduinos, lead screws, timing belts and pulleys, and aluminum ex…

Teach Your Air Compressor To Blow Eggs

As fun as it is to decorate Easter eggs, the road to a hollow hen’s egg is a gross and gooey avenue. Trust us, it sucks to blow out eggs, and it’s hard to get it right. Plus, you know, …