Salt water battery lights LED
In my previous post I made a battery of nails, copper wire and vinegar. This time I used salted water and 12 bottle caps instead of 9 to make a …
Read MoreAuthor: John H.
DIY vinegar battery lights LED for several days
Always wanted to make your own battery? Home brew electricity! Maybe you already heard about salt water batteries made from sea water, but this is something you can easily do …
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Mason jar light: remake an old solar garden lantern into a Sun Jar!
So a while back you bought a solar lantern (maybe like the one I have, a SOLIG Solar Powered Globe from IKEA) which you hung on some branch. Nice! It …
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Bottle lights from plastic bottles
A Liter of Light (Isang Litrong Liwanag) is an incredible project which aims to bring eco-friendly and cheap bottle lights -also called solar bottle bulbs- to disprivileged communities and millions …
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Solar powered fuel cell toy car
Once upon a time I had a RC car with a 3.5cc nitro engine. Lots of smoke and noise. I loved the thing, until it crashed into a sidewalk with …
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DIY Stirling engine from a tuna can
I am currently working on my third engine, after my 1st and 2nd attempts failed miserably… I thought my third engine would run. I thought wrong. It was airtight, it …
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