I found this on [hackedgadgets] and checked out the paper describing the project. I’m not sure if it will generate any truly usable graphics any time soon, but the technology is pretty interesting. It combines six video channels and uses acoustic frequencies and tiny but simple looking transducers to vibrate the crystal that channels a laser to generate the hologram. (If I read that paper correctly) Surprisingly, a single nvidia chip generates all six channels for the system. Annoyingly, there’s a lack of info on MITs site, but there’s a nice group of images under the multimedia link of this article.
Author: Will O'Brien805 Articles
Battery Powered Tesla Coil
I happened across this nice simple PWM circuit, and eventually ran across this excellent little tesla coil. The build information is pretty interesting. Between the capacitor brick and the car ignition coils, I’d say it gets pretty creative.
Xbox 360 Joystick Retrofit
Arcade joystick retrofits aren’t usually that interesting. This one sent in by [Jock] caught my eye for one reason – using those cheap RadioShack reed switch relays to adapt the joystick output to the 360 controllers Dpad. Personally, I think I would have thrown some opto-isolators at it – but the one’s that RS (sometimes) has are pretty crappy.
Solderless Aux In For Bose Sound Dock, Etc
This little how-to was sent in by [Ed]. The sound dock posts get quite a few hits, so I figured I’d share.
There is a solderless way to hack an aux input for the Sounddock.
(1)Go to Wal-mart (or elsewhere) and buy the Griffin Dock Adapter for iPod Shuffle (~$20) and a Belkin Speaker and Headphone splitter (~$4). (The Belkin splitter is needed in order to fit properly over the Shuffle plug on the device, but other cables/adapters might work.)
(2)Remove the existing adapter plate and replace it with the Dock adapter.
(3) Set the switch to speaker. (Very Important!) (4)Plug in one end of the Belkin adapter and you are ready to go! Any input signal automatically activates the Sounddock. Now you have a fully functional female and male stereo headphone input for your Sounddock.
–>Total cost ~$25 and no soldering required.
I’m Gonna Die From 1000lbs Of Tile Extra
I spent most of my day laying nearly an actual ton of tile in my house. Right now it hurts to just to type. (And thanks to Marsha for the helping hand.)
[ironjungle] sent in his $20 kite cam project. (Same camera as the cat cam)
[Dan] sent along some pics of his and his friends shoverboard builds (leaf blower hover boards)
[fucter] sent along his take on my simple audio mixer how-to.
[B-Rock] sent along a little iphone sim testing performed by our buds over at tuaw.
If you’re trying to develop web content for the latest in geek swag, you might dig firebug for the iphone.
Fourth O’ July Entertainment
Maybe you didn’t have a crazy physics teacher, or missed [Mr. Wizard], so you might not have seen the hot dog cooking by electrocution. There is one new idea this time – stick some LEDs in your victim. Thanks[ Matthew]
If that’s not geeky enough for you, check out this simple ibook server mod sent in by [Jonas].
Make Custom Dash Mods (ipod Dock)
[Daniel ] sent in this one, from an O’Reilly book, it’s older but the results are just stunning. The iPod dock has been done countless times, but the really interesting part is the custom dash molding technique. The cradle was mocked up with clay on the original piece, then a silicon mold was cast from the mock up. After that, the entire piece was re-created inside the mold. After some dremel work and a bit of sanding, it came out beautifully. It looks like a great way to make custom LCD/GPS dash inserts.
