The saw will pinch, if you make a simple device: a wooden plate with a nail, a section of which number is greater than the thickness of a handsaw. If to promote it as cutting — nogova will cut freely without clips.
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In 1921 pyatnadcatiletnij student Alexander Yakovlev read a book on the history of technology. In one of the chapters talked about the emergence of aviation, there was a model...
