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
THE DISK IS TUBE
Modern bottles or tubes of glue or sealant have the tube feeding lengthened proboscis, in which the remaining mass dries up, making it impossible to re-use. To avoid this, before a...
RESERVES FREE FLIGHT
A simple design of the airframe suggested that the German model airplanes G. Jung and C. Rosa (Fig. 1). The model has good performance and can be built athletes having small practical...
