posted Feb 7th 2011 7:00am by
James Munns
filed under:
digital audio hacks,
tool hacks

We love all of the projects that are coming out for the 555 design contest, so we thought we would share a couple more that have caught our collective eye. Have a 555 project of your own? Be sure to share it with us, and keep an eye out for the contest submission dates. Read on for a few of our project picks.
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posted May 20th 2010 12:15pm by
Mike Szczys
filed under:
green hacks

We thought we were supposed to have fusion-power for our DeLorean by now but it perhaps urine-power is just around the corner instead. [Gerardine Botte] has been working on creating hydrogen from urine, the world’s most abundant waste product. The voltage needed to break apart the urea atoms is less than half that of water, and the way we see it, you’ve had the added benefit of already using the water once before creating the fuel. [Gerardine] also makes the point that urine has phosphorus in it which could be another useful outcome of the process because it is needed as an agricultural fertilizer. Does this mean that you can repay your designated driver by fueling up his vehicle after a night at the bar? It’s probably better than doing the same for the battery of your cell phone.
Hackers produced the first vegetable-oil powered vehicles so we’re throwing down the challenge of producing the first pee-and-go automobile. Good luck and wash your hands when you’re done.
[Thanks Peter]
posted May 29th 2008 7:03am by
Will O'Brien
filed under:
classic hacks,
misc hacks,
transportation hacks

[dcb] posted about his work on the mpgduino mpguino. The project uses an arduino with a LCD display to monitor fuel consumption based on vehicle speed and the pulses of the fuel injectors being fired. It’s definitely an interesting project given current fuel costs and the passive nature of the project. You can easily tap the wires needed for the monitor and remove it without voiding your warranty (not that we really care).