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3 Cool Gadgets That You Can Build Yourself - Make your own......Taser...?

Taser

cool gadgets to build yourself

Although this project has no practical use of any kind (unless you’re into corporal punishment), it’s a fun way to learn about circuitry and rewiring it. This project is relatively dangerous, and you could end up tasering yourself if you’re not careful, but there’s nothing like a bit of painful motivation to keep you going, right?

Materials:

  • Disposable camera, any kind will do.
  • Screwdriver to pry apart the camera and to discharge the capacitor. You might want to use a screwdriver that you’re not too fond of, because discharging the capacitor will leave a scar on it.
  • Wires: The writer just ripped some out of broken electronics, but you can find insulated wire pretty cheaply at hardware stores.
  • Wire Strippers: these are not necessary, because its easy to strip wire using a pair of scissors.
  • Electrical Tape: Using electrical tape would be the most efficient, since electrical tape doesn’t conduct a charge, but any type of tape that is not flammable could theoretically work.

Projected Cost: less than $10. The cost is a little higher if you need to buy wire, but insulated wire is extremely cheap, so even if you do buy it, the purchase shouldn’t push the cost of this project much higher than ten dollars. There’s not much you can add on to this project, except perhaps pimp the casing, but hey, maybe if the taser were bright pink, your friends will object less to being the objects of your experimentation.

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The machine creating water out of thin air - CNN.com

The machine creating water out of thin air

  • Story Highlights
  • Element Four has developed a machine that creates clean water out of air
  • Growth of water use has been outpacing the rate of population increase
  • Shortages of clean water pose health challenges in the developing world
  • Zimbabwe's water crisis has unleashed a devastating cholera epidemic

This is amazing. Maybe I'll live to see a partnership with the people who invented it.

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Filed under  //   science   technology   water  

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Awesome, Low-Tech Gadget Creates Liters of Fresh Water | Gadget Lab

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Filed under  //   science   technology   water  

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