Scientific American Supplement, No. 787, January 31, 1891

III. ELECTRICITY.--A New Electric Ballistic Target.--A target for investigations of the velocity of projectiles, now in use at the United States Military Academy, West Point, N....

His object was to find out the best form of electromagnet, the best distance between the poles, and the best form of armature for the rapid work required in Hughes' printing tel...

This train of thought brings up the question of the status of our society with the station entomologists as represented by the committee of the general association. Those of us...

Since the distance from the center of the curve to either focus is equal to the square root of the sum of the squares of the semi-axes, the distance from o' to either focus

This valve, Fig. 5, differs from the others also in this particular, that the exhaust takes place at the end of the valve instead of under the arch. Two eccentrics are used, the...

Prof. J. Lewis Smith has made a great many autopsies of children dead from cholera infantum, and almost invariably found the stomach and liver in a comparatively healthy conditi...

As far as insurance is concerned, there is less difference between regular and co-operative companies than is generally supposed. Regular companies assess each policy in advance...

For the sake of those who would like to perform it, we shall add that Mr. David takes care to bend his body in the form of an arch in such a way that the convexity shall be bene...

To remedy these defects a new and very ingenious target has been devised and used with great success at the United States Military Academy at West Point. The top of the target i...

________________________________________ | | | | | t_{(sec.)} | e^{+(R/L)t} | i_{t} | --------------+--------------+---------| | 0 | 1 | 0 | | 1 | 1.105 | 0.950 | | 2 | 1.221 |...

In the matter of the feeding of the two great living worlds we might perchance light upon some adequate grounds for making up the one kingdom from the other. What the considerat...