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 intricacies of opening a padlock
Today in various spheres of our life are widely used padlocks of different nature. For example, they can be seen on garages, sheds. In addition, they meet and in the case of summer...
LENS FOR… MOBILE PHONE OR POCKET KVN
In the early XIX century the French scientist Augustin Jean Fresnel has created an unusual lens, which are not brushed solid piece of glass with a spherical surface, and a set of...
