If you need something to compress (e.g., warped cardboard blanks or the restored block of the book), do not have to have in the home press will always be at hand something spring loaded: hangers for trousers, bras with a pin and the like, that will help you out in such situation.
According to the magazine “Jugend und technician” (Germany)
Recommend to read
SOUND CONTROLLED MODELS
You obviously had to read about the models driven by sound signals. Receptor, which we offer to the reader reacts to an audio signal of a certain strength. The source may be, for...
MAGNET AGAINST THE WIND
To open window the window is not closed under the impulse of the wind, it is easy to establish a kind of brake, which would not allow it to close, and left at least a crack. On the...
