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
Flush storage shed
Aquifers we lie a meter or two from the soil surface. The construction of a magnificent cellar in such circumstances turns into an impossible task. Meanwhile, out of this situation is...
Disassembly with a magnet
When dismantling microcircuits, the leads that have been bitten off from them and remain in the board are usually removed using a soldering iron and tweezers. In this case, due to...
