If the crocodile clip soldered to the curved steel rod with a handle from a file, you will get rid of the inconveniences associated with driving in small nails.
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Every time lugging bulky geophysical equipment on mountain glaciers, I wanted a jeep. Finally it was received. And here we tracked the car-amphibians against snow-capped mountains......
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To make the tension spring is easy: a tight navit wire round rod — coil to a coil. However, a spring working in compression, this technology is not suitable: between its coils must be a...
