This simple device facilitates the use of any tube, helping to squeeze it evenly and gently. It consists of a base in a hole which is inserted the tube, and turning a key with slit for exciting a planar end of the tube. The base and key are made of wooden bars of appropriate dimensions. Their interaction is clear from the figure.
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UNSCREW THE SCREW…
When you do not have a suitable spanner to Unscrew the hex-head bolt will help out any screw with two nuts — preferably square-shaped.
GOLDEN AGE OF SAIL
Ships across the Seven seas. In the history of navigation between 1845 and 1875 called "the Swan song of sail", or "era of the clipper ships"*. Clipper as a type of sailing ship appeared...
