How many amp-hours of capacity does your battery really have? Here's how to test the capacity of a 12 volt battery with an inverter, a lightbulb, and an electric clock.
Via Instructables | Posted on 2009.01.03 at 11:58
Here's how to mash-up a digital camera rechargeable battery with LED safety glasses. Background: Awhile back, I bought a pair of those clip on LED lights that attach to the arms of glasses.
Via Instructables | Posted on 2008.12.29 at 15:32
How many amp-hours of capacity does your battery really have? Here's how to test the capacity of a 12 volt battery with an inverter, a lightbulb, and an electric clock.
Via Instructables | Posted on 2008.12.27 at 22:30
How many amp-hours of capacity does your battery really have? Here's how to test the capacity of a 12 volt battery with an inverter, a lightbulb, and an electric clock.
Via Instructables | Posted on 2008.12.27 at 22:02
We started with a Honda Rebel junker and a dream - to make a practical, zero emissions vehicle for commuting in San Francisco. After consulting with some plans available online which required chopping the frame significantly, We decided to figure it out for ourselves.
Via Instructables | Posted on 2008.12.22 at 19:22
Compound parabolic dishes have a super advantage over parabolic dishes. You rarely have to reposition them as the sun moves. So you can leave them unattended for long periods! There are many possible compound parabolic dish configurations and rather than me try to satisfy everyone, I though it would be better to give you a method to make your own petal templates.
Via Instructables | Posted on 2008.12.21 at 16:15
There are many possible compound parabolic dish configurations and rather than me try to satisfy everyone, I though it would be better to give you a method to make your own petal templates.
Via Instructables | Posted on 2008.12.20 at 21:14
Bored of that stupid date imput screen EVERY time you turn your Dreamcast on? This is the solution I came up with (my English is very bad, sorry about that!) Just need 2 AA rechargeable batteries, 1 2AA battery holder, a couple of wires and tin (to solder, don't know the real english name)
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Via Instructables | Posted on 2008.12.18 at 18:16
There are many possible compound parabolic dish configurations and rather than me try to satisfy everyone, I though it would be better to give you a method to make your own petal templates.
Via Instructables | Posted on 2008.12.18 at 15:26
Solar thermal water heating systems are environmentally friendly alternatives to heating water with electricity. Although solar thermal technology is one of the most affordable renewable energy technologies, the initial price is still too high for many low-income individuals in the United States or in developing countries.
Via Instructables | Posted on 2008.12.16 at 14:44