Hackaday Links: December 21, 2011
posted Dec 21st 2011 8:01am by Jeremy Cookfiled under: Hackaday links
The “Little Drummer Boy” On a Scanner and Drum:
There’s little more information on this hack, however, it’s quite interesting seeing an automated drum and a scanner playing a familiar Christmas tune. Check out the video of the duet in action!
A Radial Engine Model:
Through the process of experimentation, two “radial engine models” were produced. The engine model shown above uses a gear-reduced motor to power it. The other model uses CNC-cut gears and a motor from an air freshener!
Tips and Tricks on Repairing LCD Monitors:
So do you have a broken LCD monitor? Using techniques described in his post, [Neoxity] claims to have been able to repair 50 out of 60 broken monitors using techniques described on his blog.
Flex Cables:
While we’re on the subject of [Neoxity's] page, why not check out his discussion on “flex cables” used for DIY. Like the humble resistor, they’re not glamorous, but you’d be hard pressed to find an electronics assembly without one.
Illegal Numbers:
Although not a hack in itself, the “illegal number” is a really interesting concept (mentioned by one of our readers in the comments). Since all data and programs can, at their core, be represented by a series of 1s and 0s, this can also be interpreted as a number. Thus, some numbers actually represent copyrighted or trade secret data that would be illegal to possess.











Re: the illegal numbers thing, and I’m just going to throw this out there:
It is possible to copyright the output of a computer program, but as far as I can tell, there’s no need for the computer program to ever finish. IANACopyrightL, but it *might* be possible to hold the copyright to everything that could be expressed with numbers (read: everything from music to books to movies).
All you would have to do is write a computer program to calculate the digits (probably HEX) of a trancendental number, then send DMCA takedown notices to everyone.
It’s an interesting though experiment, but I’m sure there’s a flaw in is somewhere.