Tables of Remaining Velocity, Time of Flight, and Energy of Various Projectiles, Calculated from the Results of Experiments Made with the Bashforth Chronograph, 1865-1870

Spon, 1873 - 48 pages
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Page 93 - Reports on Experiments made with the Bashforth Chronograph to determine the Resistance of the Air to the Motion of Projectiles 1865—1870, pp.
Page 6 - Ibs. is placed first at one end and then at the other end of the beam.
Page 73 - Tables of remaining velocity, time of flight, and energy of various projectiles, calculated from the results of experiments made with the Bashforth chronograph, 1865 —1870. London, 1871; 8°.
Page 14 - ... chronograph. A is a fly-wheel capable of revolving about a vertical axis, and carrying with it the cylinder K, which is covered with prepared paper for the reception of the clock and screen records. The length of the cylinder is 12 or 14 inches, and the diameter 4 inches.
Page 50 - S, the length of the generating curve, into 2iry , the path described by the centre of gravity. To prove the second proposition ; let A denote the area of the generating curve, and dA the element of area corresponding to any point x, y. Also let x, y be the co-ordinates of the centre of gravity of the area, then...
Page 14 - E, the magnetism of the electro-magnet is destroyed, and the spring f carries back the keeper, which, by means of the arm a, gives a blow to the lever b. Thus the marker m is made to depart from the uniform spiral it was describing. When the current is restored the keeper is attracted, and thus the marker m is brought back, which continues to trace its spiral as if nothing had happened. E is connected with the clock, and its marker m
Page 90 - ... is to the area of the rectangle on the same base and of the same altitude as m : m + 1. This is equifl valent to finding the value of I xmdx.
Page 106 - P,PAB (fig. 21) be the trajectory of a given shot, on the supposition that the resistance of the air varies as the cube of the velocity.

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