DIY colorimeter

[brian] tipped me to this excellent colormeter project for calibrating your home theater/HD/etc It was designed specifically for the HCFR Colormeter software project. The project page is in english, but the probe writeup is in french. The fish well help you understand it while you resist the taunts avoid the flying cows. The device has at least one color sensor (a second is optional as well as an IR led or two for computer hardware controls) and connects to your computer via USB. The brain is a PIC 18F2550 (the fish calls it a PEAK) – no in circuit programming, you’ll need a programmer to build it.

Make your own fusion reactor

It’s staring to feel like a theme week. [Eric] reminded me of this 17 year old who built his own fusion reactor. Being me, I had to look around for more. I found the open source fusor research consortium. I found plans, research, and this fusor built by Richard Hull. It’s his fourth version – definitely worth checking out. Essentially, all the atmospheric air is removed via vacuum. Then you add a bit of deuterium gas, some high voltage and if you got it right, bask in the glow of your own personal fusion reaction. (Just watch out for X-ray leaks.)

Build your own laser spectrograph

The news is awash about a 17 year old girl who won a $100,000 scholarship for her spectrograph, but nobody actually linked to information about the thing. After some digging around, I located [Mary]’s web site. It’s a work in progress, but I found an early version of her spectrograph build. The picture shows her project with a spectrograph head made for a meade telescope. Hopefully she’ll get documentation of her spectrograph head up soon. This is one of the better uses I’ve seen for a 5mw green laser.

I forgot to mention her sweet dobsonian telescope build. Very nice work.

PIC cluster computing

[silic0re] sent in this uh, totally different take on micro-controller applications. The hardware is impressive. It’s built to carry up to 10 dsPICF3012 controllers (30 mips each), and has ethernet, SD, Serial and i2c thanks to an imsys SNAP module (similar to gumstix). This is, as far as I know, the first PIC controller cluster built. The software is still a work in progress- for now it’s just pretty, but he deserves points for originality. His site’s a bit slow, so try the coral cache.

(I woke up this morning thinking that I’d end up eating my words on my ‘first time’ statement.)