A kind of umbrella made of sharpened timber th a plywood “roof”, will help protect the tomato seedlings from hot sun or a sudden hail.
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NO BUTTONS, NO SWITCHES
The proposed indicator allows you to capture voltage of 6 — 12V (i.e., below the ignition of the neon lamp) and above. In contrast to the known similar kind of indicators, there are no...
COTTAGE-AMPHIBIAN
We have already talked about a jeep-climber, which could become a new kind of mountain transport (see "M-To" No. 12 of 1974). But machine-controlled trucks will be able to find...