Suitcases on wheels is widespread. But what if, going on a long journey, you take, except for the small suitcase, and even other things! Take a handle, a hook of steel wire— and all the load will ride on the same wheels.
Recommend to read
MODEL MISSILE BOATS
The model of modern missile boats (Fig. 1), developed by the Central marine club DOSAAF intended for competitions. The housing (Fig. 2) is made movable. In the drawing, the...
THE GARDEN WATERING GUN
The device of "Automatic" is intended for irrigation of vegetable and fruit plants to individual garden plots. Watering is carried out automatically at specified intervals (e.g., daily)....
