In everyday life there is often a need either to press or to put under the press has to resort to some kind of charge weights. However, a kind of the universal pressure can be a spring-loaded “clothespin” from portable lamps. B. VOLODIN
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FROM WRIST – TABLE
If you have watches that are not used, are very simple to make table. For this you need to cut from sheet metal strip, bent ,and not wearing her watch.
“E-COLI”
Instead of bulky and uncomfortable electrostatic machines Wimshurst, coils Ruhmkorff in high school physics classrooms are increasingly high voltage converters voltage. They can be used...
