
Plastic body ball point pen is often broken, especially at the tip, near the writing unit. Operational offer a way out: to tighten tight the rod in a paper tube, taped the edge of the strand. This “ball” will serve to securely purchase the new.
N. ALIKIN, St. P etersburg
Recommend to read
Electrical twin-engined
Increasingly, we receive letters from readers describing flying models, which instead of internal combustion engines operate motors of different systems. This is quite natural and...
NEW SKILLS DRILLS
The tinkerers are offered interesting options for upgrading ordinary electric drill, which introduced its readers the magazine "Practic" (GDR). Due to the small additions, it becomes a...