That the cord does not interfere with the movement of the sled during the descent from the mountain, I propose to make it retractable. For this to end you need to tie the two segments of elastics and pin them at the back of the sled. The knots will serve as the limiters of pulling the rope when towing.
A. KUZMIN, Leningrad
Recommend to read
MINI-CASE AT THERMOMETER
Mercury thermometer, as we know the fragile and the contained mercury is also very dangerous. So if there is no standard paper sheath for it that will help out a makeshift rubber tip....
AERO-HYDROPLANE COSMIC
In recent years, almost all types of modeling in our country is clearly a noticeable trend away from pure sports fields design in the direction of almost amusement equipment. Most...