FLASHLIGHT-IMPROMPTU

FLASHLIGHT-IMPROMPTUFlashlight-impromptu can be made from storage battery and a bright led. The battery is installed between the findings of the led, observing polarity, and fasten a large sandbox or plastic a paperclip. The latter is covered by a layer of plastic, does not conduct current, so the short circuit using a paperclip is not going to happen.

Recommend to read

  • AN EXAMPLE TO FOLLOWAN EXAMPLE TO FOLLOW
    Unlike analog, in the boat "Victoria" from St. Petersburg to create an air cushion and propulsive forces (thrust) uses an air screw. This allows the machine to move using both static and...
  • TERRACE YOUR GARDENTERRACE YOUR GARDEN
    If you went to the site on a slope, consider yourself lucky: the use of the natural terrain opens up excellent opportunities for spectacular garden plan. The main thing — competently to...