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
CONVERTER PUSH-PULL
Summer — time for vacation and travel. During this period, there is a special need for a universal power supply for various mobile (and not only) household appliances. Such a...
ROLE MODEL
The conduct of hostilities rivers are a serious obstacle to the attacking side. Not accidentally during the Second world war, a powerful defensive lines were built on their shores;...
