MAGNETIC BUTTON

MAGNETIC BUTTONShort age pushpin! Careless movement or too rigid Board and the button breaks or bends. There are many various designs of holders for posters and maps — from the simplest (e.g., dozens privernutyh to the wall with clothes pegs) to quite complex. Recommend one method of fixation. This will require a steel strip with a thickness of 1 to 1.5 mm and a width of 20-30 mm and a dozen magnets such as magnetic door latches. Steel strip fixed by screws in the upper part of the chalkboard, but to secure the poster, it is enough to apply it to the strip and to press a magnet. The paper thus securely hold the magnetic forces of darkness.
I. ANASTASIEV, Moscow

Recommend to read

  • LIGHT CRUISER “RED CAUCASUS”LIGHT CRUISER “RED CAUCASUS”
    LIGHT CRUISER "RED CAUCASUS" Scale model of 1:200. The history of this ship began on the eve of the first world war. 18 Oct 1913 in Nikolaev, the laying of two light cruisers. One of...
  • THE BREADWINNER OF THE BATTERYTHE BREADWINNER OF THE BATTERY
    Suggest a charger circuit for battery cars. Charging current of 5 — 6 a, the voltage at the output 20 V. the Circuit provides a smooth stable run, simple to technical solution, and most...