Electric Light, Its Production and Use |
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Page 48
... standard candles . This is vouched for by the Count du Moncel ; and , indeed , there should be nothing impossible , or even difficult , in the accomplishment of such a result . Sixty couples will yield , when well constructed , a ...
... standard candles . This is vouched for by the Count du Moncel ; and , indeed , there should be nothing impossible , or even difficult , in the accomplishment of such a result . Sixty couples will yield , when well constructed , a ...
Page 111
... standard candles , condensed beam , 6,400 ; diffused beam , 4,000 ; light produced per horse - power , in standard candles , con- densed beam , 2,560 ; diffused beam , 1,600 . The following are a few particulars given by the British ...
... standard candles , condensed beam , 6,400 ; diffused beam , 4,000 ; light produced per horse - power , in standard candles , con- densed beam , 2,560 ; diffused beam , 1,600 . The following are a few particulars given by the British ...
Page 144
... standard candles , while the Gramme , at 800 revolutions per minute , with 1.84 horse - power , gave a light of 705 candles . It must be considered by all really practical men that there is nothing here in favour of the Brush . The ...
... standard candles , while the Gramme , at 800 revolutions per minute , with 1.84 horse - power , gave a light of 705 candles . It must be considered by all really practical men that there is nothing here in favour of the Brush . The ...
Page 147
... standard candles , is , for the large machine , 823 , and for the small , 440. Or , per horse - power , 113 for the smaller machine , that given by the large machine not having been deter- mined . Figures concerning the consumption of ...
... standard candles , is , for the large machine , 823 , and for the small , 440. Or , per horse - power , 113 for the smaller machine , that given by the large machine not having been deter- mined . Figures concerning the consumption of ...
Page 151
... standard candles , mean of experiments . 475 543 758 758 911 954 1,254 Thus it will be seen that a good machine should give about 1,000 or 1,200 standard candles per horse- power ; but the measurement of the light is , in fact , rather ...
... standard candles , mean of experiments . 475 543 758 758 911 954 1,254 Thus it will be seen that a good machine should give about 1,000 or 1,200 standard candles per horse- power ; but the measurement of the light is , in fact , rather ...
Common terms and phrases
action alternating currents apparatus Architect armature arrangement axis bichromate binding-screw bobbins brass brushes Bunsen cells burn carbon carbon rod Carcel circuit clamp cloth boards commutator connected construction copper slips copper wire cores diameter direction disc drum dynamo-electric machine Edition electric light electro-magnets electro-motive force employed engine exciting experiments external resistance fixed give Gramme machine Gramme's Grove cell Grove's heat HENRY LAW horse-power hour illumination inches induced insulated inventor iron lamp length liquid magneto-electric machine mechanical metal minute motion negative nitric acid numerous Illustrations obtained pair pass permanent magnets placed platinum poles porous cell porous pot Practical principle produced revised revolutions per minute revolve ring rotation Rudimentary Treatise screw shaft shown side Siemens soldered spindle springs standard candles steel stout surface tion Trinity Board voltaic arc wheel Wilde's wire coils Woodcuts wound zinc cylinder
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Page 11 - Will be found an acquisition to pupils, and a copy ought to be considered as necessary a purchase as a box of instruments.