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DIY Wooden Plant Press
DIY LED Studio Light - Super Bright / Variable Brightness / Lightweight (CRI 90+)
Convenient Jumper Wire Power Supply
Thermoelectric Fan Powered by a Candle
Multiform Beanbag for Cheap
DIY Arduino Automatic Grow Box
I've done this in the last few years, a watermelon is more than I can eat, my fridge is tiny, so I dehydrate the rest. I've given pieces to people who didn't imagine watermelon could be dehydrated, and let them guess what it is. I do mine without the sea salt, so they're very sweet once there's no water to dilute the natural sugars in it.
keep it covered with a screen to keep bugs off, and leave windows down a little to let moisture out, it should work!
How to Build a Precise Mechanical Planetarium
I like this. I've seen the claims that a single tea candle will warm the house all night long, and I know better, considering the quantity of fuel and it's energy density.But now, during a winter season that is colder than normal, the wood stove is doing all it can to warm the old farm house, and the cooler corners of the house are truly cool! A small heater glowing on the floor in these cool corners may help out!A little more design time, and the grate that supports the flower pots would have wooden handles that allow lifting the grate with flower pots attached. A very simple wire "net" could hold the flower pots to the grate, and changing the candles would become a simpler task.Thanks for the inspiration!
Tact: Low-cost, Advanced Prosthetic Hand
I would suspect that if you were drawing more air through the plates of the heat sink, you'd be cooling that side of your Peltier more quickly, thus reducing the chances of damaging your Peltier. Repositioning the fan so that it cools more of the fins, or putting a shroud around it so that it draws primarily through the spaces between the fins may help.
you are correct that there will be a higher capacitance, but you'd sacrifice some of the insulation between plates, reducing the voltage the insulators can withstand. by making a matrix of series / parallel capacitors, you can increase both voltage and capacitance
indeed, I find that Gimp for Windows works well for a photo editor. It's cross-platform, so there should be a version of it for most operating systems. And it's free! (openSource)https://www.gimp.org/
DIY Customized Book Journal
Carving a cedar dugout canoe - The Souquillou Project (1)
Basic Electronic components
The MicroSlice V1 | A tiny Arduino laser cutter
Staining Wood With Wodka & Walnuts
$78 Grow light - Full-Spectrum, 22 Watts, No Heat
Convert a Grindstone to Treadle Power
Create a Storm Glass (Instrument For Weather Prediction)
World's first? Full 3D printable ornithopter assembly instruction
Cheap simple tripod for your pocket
Impossible Marble in Truncated Cube
Naff Movie into 'DVD Spectra'