Collisions of slow moving electrons with nitrogen molecules . t. for an electron could be calculated. Tho electrod a A and B were platinum disks, 6 cm. in diameterThe central portion of A was cut out and covered With a gauze. Bwas supported by a fine copper wire which slid over the copper cylin-der K and extended down to F where it was fastened. K was electri-cally connected to the electrode J. The distance between the plati-num electrodes A and B could be changed by sliding the iron clamp Fby means of an electromagnet. The platinum cup, C, which served asthe source of the electrons was surrou
Collisions of slow moving electrons with nitrogen molecules . t. for an electron could be calculated. Tho electrod a A and B were platinum disks, 6 cm. in diameterThe central portion of A was cut out and covered With a gauze. Bwas supported by a fine copper wire which slid over the copper cylin-der K and extended down to F where it was fastened. K was electri-cally connected to the electrode J. The distance between the plati-num electrodes A and B could be changed by sliding the iron clamp Fby means of an electromagnet. The platinum cup, C, which served asthe source of the electrons was surrounded by a copper cylinder D andelectrically connected with it. This system could be maintained atany desired potential through the electrode I. The platinum cup cm. in diameter and cm. deep; it was welled out of platinumfoil .01 mm. thick, and heated by means of the tungsten spirals watts through the spirals was sufficient to heat the upper surfaceof the cup to ^ very bright red color; at this temperature the elec- Q tron current emitted from i
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Keywords: ., bookcentury1900, bookdecade1910, bookidcollisi, booksubjecttheses
