In water columns or country water supply systems where the water pressure is generally weak, long hold the bucket to the shed and wait until it is filled, very tiring. Made of metal strips the clamp-hook and secure it near the crane — suspended bucket on it will free your hands from unnecessary strain.
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ROVER-CLIMBER
Every time lugging bulky geophysical equipment on mountain glaciers, I wanted a jeep. Finally it was received. And here we tracked the car-amphibians against snow-capped mountains......
ATLAS PROFILES
PROFILE "NACA-6409". Developed in the early 30-ies in the aerodynamic laboratory of the NAC (USA) for lifting aircraft-biplanes. This profile can be recommended as models of gliders...
