Now, almost everywhere applied electronic machines and appliances, the programme of work which is carried out by using perforated paper tapes and cards. Therefore, it is easy from already used punch cards to pick up where the holes were located in one row. Essentially, this is a ready device for drawing dashes: apply to the centers of the holes, a ruler and a pencil or pen — under the card will remain clear dotted line.
Recommend to read
FRENCH INFANTRY TANK
After the First world war, France had the largest tank Park in the world. And the main part of it were the fighting vehicles Renault FT17— without a doubt the best tanks of the last war,...
AND WEDGE AND RIVET
The traditional method of fixing the hammer on the handle is wedging. Over time, however, the knot loosened and it is necessary to change the wedge or pen. I suggest to fix a clogged...
