How carefully any work with glue in a tube, still the hole is clogged by dried particles. And even cover somewhere of the sunset, you will not find.
Simple device eliminates these problems — a wooden stand with a stud to which the tube “nakalyaetsya” his hole in between works.
Recommend to read
MINI HELICOPTER FREE FLIGHT
The twin-engine helicopter model. The creation of radio controlled model helicopters is one of the most difficult types of modeling. So complex that at the present time, almost nobody...
NEW OLD COIL RUHMKORFF
Induction coil, in the last century invented Rumkorem, and is now used in experiments in physics. But now it is not fully satisfy the requirements of physical experiment creates...
