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Updated: May 19, 2025
After the dynamometer test had been completed, and everything had been made ready for trial in motion, careful observers were stationed on each side of the track, and the order was given to release the machine. What follows is best told in Maxim's own words:
Gooch's experiments upon a train weighing 100 tons, the resistance of the engine and tender at 13.1 miles per hour was found by the indicator to be 12.38 lbs.; the resistance per ton of the train, as ascertained by the dynamometer, was at the same speed 7.58 lbs., and the average resistance of locomotive and train was 9.04 lbs.
The dynamometer tests and the figures I obtained just now prove absolutely that you are innocent of the Van den Rosen robbery and, consequently, of the robbery from Sonia Danidoff." Again the lad reflected for a minute or two. "But you didn't know who I was when you came to the hotel, did you? And therefore had no suspicion that I was Charles Rambert? That's true, isn't it? How did you find out?
It was my intention to arrest you, and to ascertain definitely by means of the dynamometer that you were innocent of the Langrune and the Danidoff crimes." "What you tell me about the dynamometer explains how you know I am not the man who committed the robbery at the hotel, but what clears me in your eyes of the Langrune murder?" "Bless my soul!"
The endless screw is attached to some revolving part of the engine, whereby a rotatory motion is imparted to it; and the wheels into which the screws work hang down from it like a pendulum, and are kept stationary by the action of gravity. Q. What is the nature of the dynamometer?
"Pretty well!" he said; "not so much fallen off as I expected." Then he set up his bolster in a very knowing sort of way, and delivered two or three blows straight as rulers and swift as winks. "That will do," he said. Then, as if determined to make a certainty of his condition, he took a dynamometer from one of the drawers in his old veneered bureau. First he squeezed it with his two hands.
It was not her fault that she broke a dynamometer one day; she apologized for it, but the teacher said he wished he could have a dozen broken every year in the same way. The consciousness of her bodily strength had made her very careful in her movements. The pressure of her hand was never too hard for the tenderest little maiden whose palm was against her own.
Careful tests which have been made with pneumatic-tyred vehicles by means of various types of dynamometer have proved that, altogether apart from the question of comfort arising from absence of vibration, there is a very true and real saving of actual power in the driving of a vehicle on wheels fitted with inflated tubes, as compared with the quantity that is required to propel the same vehicle when resting on wheels having hard unyielding rims.
True, domesticated plants can be gradually acclimatized to bear a degree of heat or of cold, which, in their wild state, they would not have supported; the trained English racer out-strips the swiftest horse of the pampas or prairies, perhaps even the less systematically educated courser of the Arab; the strength of the European, as tested by the dynamometer, is greater than that of the New Zealander.
Hopkinson communicated to this institution the results of some very careful experiments made on a Siemens machine. He measured the force expended by means of a registering dynamometer, and obtained very high coefficients of efficiency, amounting to nearly 90 per cent. M. Hagenbach also obtained from one machine a result only a little less than unity.
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