Check out this cool DIY on making your own subwoofer. I tried this before using some wood and plexiglass and it’s real fun once you hear the sub workin’

So I began to wonder if I couldn’t make something half decent myself. Ordinarily I wouldn’t attempt to build a loudspeaker; it’s notoriously difficult to work out the optimal dimensions of the cabinet; in addition sound woodworking and construction skills are required. However, a sub-woofer is somewhat different. First, there will typically be only one driver unit in the cabinet, so the design does not have to be a compromise between the needs of the multiple drivers. Second, the sub-woofer will be driven by its own amplifier and cross-over unit. This means the electronics can compensate, to a degree, for imperfections in the design, and we don’t have to implement a passive crossover (great big coils and what-nots).

(Picture via nickbaxter)

• 5 Strange Japanese Robots from Hacked Gadgets - these are really cool robots!
• Vintage Washing Robot - Hmmm… I wonder if this robot actually works…
• CommunistRobot - These guys have a collection of really cool robots around the world.
• Astroboy from Hirosh Araki - I think this robot is based on the cartoon. Way too cool… Popular in Asia. My ex-girlfriend wanted one of these Astroboy T-shirt (which was like $150), and I didn’t get her one so she dumped me ‘caz of it)
• Aldebaran Robotic - These guys have some really cool Linux based robots, nice!

Check out the 24mm cubic box mp3 which is supposedly the smallest MP3 player ever?!?

Never before has such a big sound come from such a tiny device! And when we say tiny, we really mean tiny. We are not just talking about palm-sized. We are talking about finger-sized. But size is not a sacrifice for quality and performance. You get the same level quality of sound than the top MP3 players on the market that are typically 10x larger and 3x more expensive.

[via] redferret

We’ve seen this before, a bike light, but this guy makes it for his motorcycle! Cool…

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Here’s a really cool project using RFID to simulate a door lock or identification system of some sort.

The design is fairly straight forward, a custom circuit board links the BASIC Stamp to the RFID reader, and is powered by 12v. When a valid card is recognised, it provides 12v output to a door strike, and buzzer for 3 seconds. When an invalid card is recognised, it pulses 12v to a buzzer only for 250 milliseconds 3 times in a row (see below for video demo). It also features a trigger input which when connected to ground will simulate a valid tag bring presented to the reader (this is used to “buzz” open the door from a remote location).

via

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Check out this Wii hack, someone got a Nintendo Wii to play on iPod!

Just playing some Wii… on my 60GB iPod. Basically in a nutshell I just rewired my dock with the lightbar from the Wii. Then running linux and a app that I installed on the iPod, enabled it for live video stream via the 30pin dock connector (ie. instead of video out I can have video in) Then with a few splicing of the composite video connectors and some electrical tape to convert it to the S-Video jack on the back of the dock. The audio was passed through to a reciever and not through the iPod.

[via] youtube

Craigslist is very good for searching stuff except most of the time it’s in text but here’s a site that lets you browse craiglist with images only.

via hackszine

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Here’s a simple but a cool hack on controlling a LEGO robot arm using the Nintendo Wii controller!

Make sure to check out the industrial robot arm controlled by Wiimote also!

via

Wow, this is one cool keyboard I wanna get.