The Resistance of the Air Determined at Speeds Below One Thousand Feet a Second, with Description of Two New Methods of Measuring Projectile Velocities Inside and Outside the Gun
Excerpt from The Resistance of the Air Determined at Speeds Below One Thousand Feet a Second: With Description of Two New Methods of Measuring Projectile Velocities Inside and Outside the Gun I. Robins' in 1742 made the first experiments by means of the ballistic pendulum which he invented. His conclusions were, that up to 1100 feet, secs. The resistance is proportional to the square of the velocity; at 1100 ft. Secs. The law of the resistance changes; beyond'1100 ft. Secs. The resistance is nearly three times as great as ...
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Excerpt from The Resistance of the Air Determined at Speeds Below One Thousand Feet a Second: With Description of Two New Methods of Measuring Projectile Velocities Inside and Outside the Gun I. Robins' in 1742 made the first experiments by means of the ballistic pendulum which he invented. His conclusions were, that up to 1100 feet, secs. The resistance is proportional to the square of the velocity; at 1100 ft. Secs. The law of the resistance changes; beyond'1100 ft. Secs. The resistance is nearly three times as great as if calculated by the law of the lower velocities. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... This 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.
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