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By Unknown
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I think this is exactly what a construction site needs; gas-powered, all terrain wheelbarrows speeding in between precarious scaffolding. What could go wrong?

~NSHA

By Unknown
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In the Netherlands, Domino's Pizza's electric scooters didn't make enough sound to warn oncoming bikers that they were coming. So, to fix the potential danger, Domino's installed devices on the scooters that emit fake engine noise... with a few added sounds here and there!

Via: Seuntjie
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  1. Connect the one end of the relay coil to the collector of the transistor.
  2. Connect the other end of the coil to +V end of the power source.
  3. Connect your resistor and LDR to the base of the transistor.
  4. Connect the resistor to +V and the LDR to ground.
  5. Connect the emitter to ground.
  6. ????
  7. PROFIT!!!!
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