Nature, Volume 99Sir Norman Lockyer Macmillan Journals Limited, 1917 - Electronic journals |
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Page 106
... metal sealed into the bulb as a means of detecting high - frequency electric τα 000 a + . 1. - Various forms of Fleming oscillation valve or thermionic detector used in wireless telegraphy . oscillations , as used in radiotelegraphy ...
... metal sealed into the bulb as a means of detecting high - frequency electric τα 000 a + . 1. - Various forms of Fleming oscillation valve or thermionic detector used in wireless telegraphy . oscillations , as used in radiotelegraphy ...
Page 133
... METAL MELTING . THE outstanding feature of the proceedings at the annual meeting of the Institute of Metals , held at Burlington House on March 21 and 22 , was a general discussion on metal melting , organised by the council . Whether ...
... METAL MELTING . THE outstanding feature of the proceedings at the annual meeting of the Institute of Metals , held at Burlington House on March 21 and 22 , was a general discussion on metal melting , organised by the council . Whether ...
Page 134
... metal heated for the shortest possible time . The total loss of heat per lb. of metal while it is hot is the criterion . From this point of view Dr. Hering states that the ideally perfect melting furnace , if such it can be called , is ...
... metal heated for the shortest possible time . The total loss of heat per lb. of metal while it is hot is the criterion . From this point of view Dr. Hering states that the ideally perfect melting furnace , if such it can be called , is ...
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