Proceedings of the American Academy of Arts and Sciences, 28권Metcalf and Company, 1893 Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell. |
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22개의 결과 중 1 - 5개
40 페이지
... nickel of density 8.08 , the thermal conductivity of which I have found by experiment to be very nearly the same as that of the cast gun - iron at 115 ° or 120 ° Centigrade . The specific heat of nickel is about the same as that of iron ...
... nickel of density 8.08 , the thermal conductivity of which I have found by experiment to be very nearly the same as that of the cast gun - iron at 115 ° or 120 ° Centigrade . The specific heat of nickel is about the same as that of iron ...
41 페이지
... nickel in many respects , they make a powerful thermo - electric couple , so that nickel appeared to be of all substances the one best fitted for my purpose . The hole bored in the iron to receive the nickel cylinder was about 0.65 cm ...
... nickel in many respects , they make a powerful thermo - electric couple , so that nickel appeared to be of all substances the one best fitted for my purpose . The hole bored in the iron to receive the nickel cylinder was about 0.65 cm ...
42 페이지
... nickel parts were from one bar . From the nickel core of each plug when in use extended a slender bar of nickel about 15 cm . long , made from the same piece as the core , and from the outer end of the iron plug extended a similar bar ...
... nickel parts were from one bar . From the nickel core of each plug when in use extended a slender bar of nickel about 15 cm . long , made from the same piece as the core , and from the outer end of the iron plug extended a similar bar ...
44 페이지
... nickel thermopile omitted , had no perceptible effect upon the galvanometer . He would then signal for the thermopile to be brought into action , and , watching the galvanometer , would determine whether the paraffin was too hot or too ...
... nickel thermopile omitted , had no perceptible effect upon the galvanometer . He would then signal for the thermopile to be brought into action , and , watching the galvanometer , would determine whether the paraffin was too hot or too ...
46 페이지
... nickel core during this set of obser- vations . It was put in order before the observations of May 8 , when it appeared to be perfectly tight . The temperature of equilibrium appeared to fall in this set of observations from near 123 ...
... nickel core during this set of obser- vations . It was put in order before the observations of May 8 , when it appeared to be perfectly tight . The temperature of equilibrium appeared to fall in this set of observations from near 123 ...
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3d thoracic abdominal segments Acad Academy achenes acid acuminate alcohol ammonia anhydride antheridium apex appendages argentic Atomic mass baric bromide basal cell base bearing benzol bifid Boston Bowditch bracts branches bristles calyx Cambridge capsule carbonate cerite chloride color crystals curved cylinder diaphragm distal dorsal tubercles elytra Excursion experiments Fellow in Class flowers gave grammes Gray Hall effect heat hyaline hydrobromic acid inches long inner LABOULBENIA lanceolate larva larvæ lateral leaves length to tip Line Current linear lines in length lines long Magnetizing Current milliamperes nearly nickel nitrate oblong orthogonal matrix ovate oxalates oxide pale pedicels perithecium petals petioles poems Proc promethea prothoracic pubescent Receptacle salt Samarskite sepals setæ short slender slightly solution species specimens spermogonium spiracles Spores Stage stems substance suffused sulphate superposed cells suranal plate temperature Tennyson tion tubercles Wats yellow yellowish zincic
인기 인용구
370 페이지 - We turn the pages that they read, Their written words we linger o'er, But in the sun they cast no shade, No voice is heard, no sign is made, No step is on the conscious floor!
428 페이지 - Half-grown as yet, a child, and vain — She cannot fight the fear of death. What is she, cut from love and faith, But some wild Pallas from the brain Of Demons ? fiery-hot to burst All barriers in her onward race For power. Let her know her place ; She is the second, not the first. A higher hand must make her mild, If all be not in vain ; and guide Her footsteps, moving side by side With wisdom, like the younger child : For she is earthly of the mind, But Wisdom heavenly of the soul.
378 페이지 - Body of turkey, head of owl, Wings a-droop like a rained-on fowl, Feathered and ruffled in every part, Skipper Ireson stood in the cart. Scores of women, old and young, Strong of muscle, and glib of tongue, Pushed and pulled up the rocky lane, Shouting and singing the shrill refrain: "Here's Flud Oirson, fur his horrd horrt, Torr'd an' futherr'd an' corr'd in a corrt By the women o
423 페이지 - There lives more faith in honest doubt, Believe me, than in half the creeds.
369 페이지 - The house-dog on his paws outspread Laid to the fire his drowsy head, The cat's dark silhouette on the wall A couchant tiger's seemed to fall; And, for the winter fireside meet, Between the andirons...
385 페이지 - Ring and swing, Bells of joy ! On morning's wing Send the song of praise abroad ! With a sound of broken chains Tell the nations that He reigns, Who alone is Lord and God...
378 페이지 - Sweetly along the Salem road Bloom of orchard and lilac showed. Little the wicked skipper knew Of the fields so green and the sky so blue.
367 페이지 - And die, if needful, as a true man should. Men stooped above him; women dropped their tears On that poor wreck beyond all hopes or fears, Lost in the strength and glory of his years. ' What heard they? Lo! the ghastly lips of pain, Dead to all thought save duty's, moved again: "Put out the signals for the other train!
369 페이지 - Shut in from all the world without, We sat the clean-winged hearth about. Content to let the north- wind roar In baffled rage at pane and door, While the red logs before us beat The frost-line back with tropic heat...
385 페이지 - O bells ! Every stroke exulting tells Of the burial hour of crime. Loud and long, that all may hear, Ring for every listening ear Of Eternity and Time ! Let us kneel : God's own voice is in that peal, And this spot is holy ground. Lord, forgive us ! What are we, That our eyes this glory see...