Proceedings of the American Academy of Arts and Sciences, Том 48Metcalf and Company, 1913 Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell. |
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Страница 13
... temperature and far more intensively , the wattage rising to 460. With the Euphos glass in , the total change in deflection amounted to only 3.7 cm . although the lamp tested on the photometer as in the previous case reached 820 c . p ...
... temperature and far more intensively , the wattage rising to 460. With the Euphos glass in , the total change in deflection amounted to only 3.7 cm . although the lamp tested on the photometer as in the previous case reached 820 c . p ...
Страница 21
... temperature of melting glass ( 1400 ° C ) is too low to give rise to any material amount of energy in the extreme ultra violet . The present investigation , therefore , took account of the whole body of radiations of short wave length ...
... temperature of melting glass ( 1400 ° C ) is too low to give rise to any material amount of energy in the extreme ultra violet . The present investigation , therefore , took account of the whole body of radiations of short wave length ...
Страница 23
... temperature and the latter by reason of the fact that the extreme ultra violet is entirely cut off by the tube , and the middle ultra violet being very weak in the mercury spectrum , the main body of the energy is of wave length greater ...
... temperature and the latter by reason of the fact that the extreme ultra violet is entirely cut off by the tube , and the middle ultra violet being very weak in the mercury spectrum , the main body of the energy is of wave length greater ...
Страница 26
... temperature , gives a small absolute amount of ultra violet radia- tion , although its luminous efficiency is not great . At the other end of the line comes the special enclosed arc with 91 ergs per second per square cm . per foot ...
... temperature , gives a small absolute amount of ultra violet radia- tion , although its luminous efficiency is not great . At the other end of the line comes the special enclosed arc with 91 ergs per second per square cm . per foot ...
Страница 27
... temperature of the source , which insures high luminous efficiency , in connection with strong ultra violet absorption in the atmosphere . Unfortu- nately one can apply Planck's law to very few practical sources of light . The sun is ...
... temperature of the source , which insures high luminous efficiency , in connection with strong ultra violet absorption in the atmosphere . Unfortu- nately one can apply Planck's law to very few practical sources of light . The sun is ...
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2-vector Abietineous Agathis angle antheridia apex appear Araucarian axes axis bars of Sanio basal cell become Boston branches bulbils Cambridge central cells chlamydospores coil compressibility conidia Conifers cultures curve determined diameter Diels dimensional distally distinguished ectoderm equations Figure genus geometry Heraclitus hyaline hyphae inner product k₁ lamp lateral length to tip method motion mycelium nematocysts nilpotent number system obtained outer outer product Papulospora particle perithecium perpendicular pitting plane planoid Plate polyp pressure primary appendage primordium pyrosulphuryl chloride quartz radiation rays reactance receptacle resin canals S₁ Sanio scalar silicon silicon tetrachloride singular vector slightly space species spores stalk-cell stomodaeum sub system subbasal cell subtended suffused temperature terminal tion tip of perithecium Total length tracheids tube ultra violet usually velocity wood zero δὲ καὶ Σ Σ τὰ τὸ τοῦ τῶν
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