
If a wooden bar and drill two holes the diameter of pencils or flomasterom — get a new handy tool for drawing or sketching: one motion will be two parallel lines. Instead of a single bar it is possible to use two longitudinal halves, in which to choose the grooves for writing the stems and then tie or glue the workpiece.
Recommend to read
INSTEAD OF A MICROPHONE — DYNAMIC HEAD
When there are dynamic microphone, you can substitute any small-sized dynamic head. Here's what proposes to make to the Yugoslav magazine "Radio Amater". Since the voltage developed by...
THE MOST SUCCESSFUL NAVAL FIGHTER
The Grumman F6F HELLCAT. Analysis of the results of air combat in South-East Asia with the participation of the new Japanese high-speed fighters allowed American experts to draw a...