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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This model was designed by students of Victor Pisarev, Alexei Knizhnikov and Nikita Novikov. They built it in the ship laboratory of the Moscow city Palace of pioneers. High speed of...
TRIPOD FOR MACRO PHOTOGRAPHY
During normal photographing miniature objects - be it coins, insects, or drops of dew on the grass - is the involuntary trembling of the hands, especially with long exposures: they...
