Who has been swimming in the pool, know about the unpleasant effects of disinfected water on the mucous membrane of the eye: an unpleasant stinging, eyes red. Therefore, swimmers usually use special glasses. Widespread recently got glasses of the Leningrad scientific-production Association “Burevestnik”. It is molded from polymethylmethacrylate to the calyx, enclosed in a rubber sealing rim. They have a small disadvantage: they instantly fog up in the water, besides, organic glass is gradually covered with a network of scratches and cloudy.
Glasses it is easy to upgrade, replacing the usual plastic glass. To do this in the cups (see picture). removed the flat part: it is possible to drill around the perimeter or cut the heated soldering iron or hot wire, for example elektrovyzhigatel. The resulting edge grinds with a file beneath the cone. Accordingly, the grind and the window of ordinary glass with a thickness of 1,5 — 2 mm, for example, using an abrasive whetstone in water. On the thus-prepared edge of glasses or the glass is applied a layer of epoxy resin, the details are combined, and the glasses are ready.
Upgraded points:
1 — rubber socket, 2 — transparent calyx, 3 cone edge 4 glass.
If you are wondering where to buy swimming goggles? Suggest to consult the experts in this matter who will be able to find goggles, and you will be able to protect your eyes from water and provide clear images.
Before entering the water, as do the divers, you need to clean the glass with saliva and rinse with cold water, it becomes transparent as a tear during the whole time of the voyage.
A. RAKHMATULIN, Moscow region
Recommend to read
FROM THE GLIDER TO A BIKE-AMPHIBIAN
"After reading # 1, 1975 note", Polihale", I can not write about his former teacher, the head of the circle of technical creativity of the Chernyshev Lev Sergeyevich," writes a reader...
DRAINED THROUGH THE HOSE
Changing the oil in a car engine is one of the dirtiest operations. Judge for yourself — when warmed to 80-90 degrees engine merges dirty testing, her hot stream enters anywhere, but not...
