Usual shopping trolley is easy to adapt for transportation of bulk household items, if using metal corners or tubular elements from the old clamshells to increase cargo area, and if necessary to build also the front wall, as shown in the figure.
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PROTOTYPE -HOURGLASS
The Romanian magazine "Technium" offers a diagram of the electronic timer operates on the principle of the 5-minute hourglass clock every minute. The indication to carry out the LEDs....
A simple solution to a complex problem
It happens that a stud or tap gets cut off or broken, remaining in the hole. An unpleasant situation, but not hopeless. A proven technique will help: the hole needs to be drilled out to a...
