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

  • RAIN IN A CLEAR SKYRAIN IN A CLEAR SKY
    As you know, most of the territory of mother Russia belongs to the so-called "zone of risky agriculture": in the Northern regions even in summer it can hit freezing; on the South and...
  • SCREW MOLDSCREW MOLD
    Model propellers for internal combustion engines are usually made from solid wood: beech, ash, birch, hornbeam. However, work on the air screws is very labor intensive and requires a...