Widespread, cassette radio. Storage cassettes make a simple stand as shown in the figure.
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THE PLOUGHSHARE OF PIPE…
Paradoxically, for many Amateur designers to make a good plow harder than a mini-tractor! And only due to the fact that the tool consists of parts having a curved shape, which can only...
TRICYCLE “GRASSHOPPER”
The “Grasshopper” tricycle was designed and manufactured in the small-sized equipment design laboratory of the KYUT of the Novosibirsk academic campus by seventh-graders Anatoly Mikhailov,...