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
ACCURATE MARKINGS
Plastic bottles is a real treasure for home work. What did not come up with craftsmen to use this waste material. But here's the problem: even to cut strictly in a circle of this dish is...
“Butterfly”
This name was given to a micromotorcycle built on the basis of a children’s scooter.
The authors of the “Moth” are Zhenya Gavrilov, Sasha Golev, Seryozha Golubenkov, and the head of the...
