The Technical World, Volume 1American school of correspondence at Armour Institute of Technology, 1904 |
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Page 7
... means of radium , by W. P. Near , B. A. , assistant to Prof. J. C. McLennan , in the Physical Laboratory of the University of Tor- onto . In the taking of the radiograph of which the above is a reproduction , the keys were placed upon a ...
... means of radium , by W. P. Near , B. A. , assistant to Prof. J. C. McLennan , in the Physical Laboratory of the University of Tor- onto . In the taking of the radiograph of which the above is a reproduction , the keys were placed upon a ...
Page 8
... means of radium , in the Physical Lab- oratory of the University of Toronto . In this case , as in that of Fig . 4 , the sensitized plate , with the metallic objects upon it , was protected from di- rect action of the radium rays by means ...
... means of radium , in the Physical Lab- oratory of the University of Toronto . In this case , as in that of Fig . 4 , the sensitized plate , with the metallic objects upon it , was protected from di- rect action of the radium rays by means ...
Page 11
... means of adjustment have been arranged in such a manner that , instead of the guesswork formerly necessary , the machine can now be adjusted in any di- rection , accurately , to within a fraction of a thousandth of an inch , thus saving ...
... means of adjustment have been arranged in such a manner that , instead of the guesswork formerly necessary , the machine can now be adjusted in any di- rection , accurately , to within a fraction of a thousandth of an inch , thus saving ...
Page 13
... means of pins , as shown at A , Fig . 4 ; these pins must be a close , sliding fit in the jaw . However , in case the work is to be done in quantities sufficiently large to warrant the outlay , it is advisable to make a fix- ture ...
... means of pins , as shown at A , Fig . 4 ; these pins must be a close , sliding fit in the jaw . However , in case the work is to be done in quantities sufficiently large to warrant the outlay , it is advisable to make a fix- ture ...
Page 16
... means . The Indians used the former means in lighting their fires by rubbing together cedar sticks or using a flint . The mechanical friction produced by rubbing a match is enough to excite sufficiently rapid ether vibration to ignite ...
... means . The Indians used the former means in lighting their fires by rubbing together cedar sticks or using a flint . The mechanical friction produced by rubbing a match is enough to excite sufficiently rapid ether vibration to ignite ...
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