If you have an old inflatable mattress, consisting of several independent sections, it is easy to adapt as life jacket for boating. You will have to sacrifice one of the middle sections, making it T-shaped hole for threading of the head. To fix the other slightly inflated section around the torso using the waist belt and extra lacing.
Recommend to read
THE GLIDER, BUT NOT ONLY
We present radiomodulators development created by Czech athletes. Although the model presented by the authors as "glider", its capabilities are much greater. Suffice it to say that a...
ELECTROCYCLE
Ecology and environmental protection are becoming increasingly relevant topics in the world. Constantly more stringent requirements for emissions of harmful substances by vehicles....
