During painting operations, any pause — problem: where to put the brush? Help out a simple string, stretched between the ears buckets of paint. Neatly folded on it, the tool will quietly wait for when you will be able to continue the work.
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WITH THE BIKE IN THE SUBWAY
But not to throw out it! And involuntarily thought creeps in to make it a foldable frame. The same as, say, the "Kama". I reviewed the literature on the subject (including the...
MODULAR POWER SUPPLY
In Amateur practice when developing or building a device often require multiple power sources at different voltages. For example, structures made in operational amplifiers and working in...
