A KEY TO SHAWS PHYSICS BY EXPERIMENT (CLASSIC REPRINT)

Excerpt from A Key to Shaws Physics by ExperimentThe needles are held in position because the surface tension between the two needles, tending to draw them together, is just equal to the surface tension on the outside, tending to draw them apart. The alcohol breaks the sur face tension between them, and the surface tension from the outside pulls them apart.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works._,