It is convenient to create a temporary memo — whether it is preparing the card for your file, or just notes about the latest Affairs in the coming days, or envelopes with letters awaiting answer: they are placed between the turns of the springs (preferably of large diameter). Ensure that the spring does not ride, attach the ends of tin or cardboard cheeks.
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When I need to drill a hole in glass, I use this way. In the Chuck of the drilling machine is clamped copper tube length of 100 mm (the diameter is adjusted depending on what you need...
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Japanese seaplane E14Y. The first production Е9W1 hydroplanes equipped with boats I-7 and I-8, after which in 1937 the serial production of these aircraft continued. Just released 32...
