Inspired by the 19th-century designs of Valdemar Poulsen’s wire recorder, this kit from Gakken Japan looks like it could be fun to play with. Once you put it together, you set the recording head on top of any metal surface that will hold a magnetic charge, drag the control across the surface and speak into the microphone. You can use anything from a metal tabletop to a common kitchen knife to store your secret messages. Once recorded, flip the playback switch and you’ll hear your scratchy voice played back as you move the magnetic head. The video below shows how it works. Feel free to jump ahead to around 50 seconds in to get to the interesting bits.

Click to View Embedded Video Clip

Keep in mind that the instructions for assembling this kit are entirely in Japanese. But they do seem to have enough visual detail that you should be able to build the wire recorder successfully. Want one? You can order the wire recorder kit over at the Maker Shed for $38.99 (USD). Just don’t try putting this anywhere near your old VHS tape collection.

Using a modified Magna Doodle as the basis for their display, the Clock-a-Doodle-Doo is the brainchild of a recent UCLA mechanical engineering class.

The clock uses a XY plotter-like mechanism to “draw” the current time by neatly arranging the magnetic particles with a mechanical pen. When it’s ready to change time, another mechanism pulls the “eraser” mechanism to release the particles and clear the magnetophoretic display. Each minute, it does the whole thing all over again. Lather, rinse, repeat.

Click to View Embedded Video Clip

Ever wonder how a Magna Doodle really works? HowStuffWorks has deconstructed the gory innards of the mysterious magnetic device for your personal enrichment.

That’s exactly what the guys over at Transparent House are doing with their cassettes. The designers make each lamp from dozens of individual cassette tapes, arranged into visually appealing patterns. Not only do they look cool as a sculptural piece, they cast dramatic shadows onto surrounding surfaces.

Each lamp uses a bright, cool-burning neon light source to keep the plastic cassettes from melting. Of course, they left each tape in its original transparent case so they could be together glued neatly.

And if you have a fond place in your heart for the old micro-cassette, you don’t have to feel left out. They’ve got a lamp just for you, made from 140 of the mini tapes.

Now the guys over at Transparent House don’t say if they’ll be producing these en masse, or if they’re just one-of-a-kind design pieces. Personally, I’d love a couple of these in my media room.

[via geeksugar]

The Abacus series of watches has no hands at all. Instead, there’s just a single steel sphere that rolls around inside the watch as you move your wrist around. But as soon as you level out to a horizontal position, a magnet behind the dial stops the ball at the current time. Since there’s no second hand, you won’t be able to tell exactly what time it is, but who cares. You’ll look so cool wearing this watch, that nobody will care if you’re a few minutes late.

Each Abacus watch features a stainless steel case, with a leather strap and either mineral or sapphire glass face. They’re also water resistant to about 100 feet. You can find a wide variety of Abacus magnetic watches from QuestoDesign, ranging from about $150 to $230 depending on the style.