HANDHELD VACUUM CLEANER…

POCKET... A VACUUM CLEANERThis kind of “vacuum cleaner” uses the property of plastic to electrify the friction of the fabric. And the device it is very simple. In the lid of a conventional soap dishes, cut a few cross grooves with a width of 4 to 5 mm. Few movements of the fabric and the electrified dust particles collect inside the box.
 
A. BARANOV, Prokopievsk, Kemerovo region.

Recommend to read

  • PATROL WITH NUCLEAR WEAPONSPATROL WITH NUCLEAR WEAPONS
    Bomber P2V NEPTUN. In the late 30-ies of the leadership of the U.S. Navy began to develop the requirements for patrol aircraft anti-submarine escort convoys and deep sea exploration. New...
  • SPROCKET FOR CHAIN TRANSMISSIONSPROCKET FOR CHAIN TRANSMISSION
    the Designers often have to choose the right transmission ratio, and in this regard to look for suitable veins. The case is ungrateful, requiring large expenditures of time. It is much...