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Screws
-0 %
Artikel-Nr:
9780822500667
Veröffentl:
2001
Einband:
PDF
Seiten:
48
Autor:
Roseann Feldmann
Sprache:
Deutsch
Beschreibung:
We''ve all seen screws, but how do they work? Why is it easier to screw something into something than to simply push it in? With basic hands-on experiments and clear descriptions, this simple machine is explained.
We''ve all seen screws, but how do they work? Why is it easier to screw something into something than to simply push it in? With basic hands-on experiments and clear descriptions, this simple machine is explained.