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 5
... a special one bent to 1.5 meters radius . The thermo- pile indications were calibrated in absolute measure by observations on the radiation of a standard incandescent lamp supplied by BELL . ULTRAVIOLET COMPONENT IN ARTIFICIAL LIGHT . 5.
... a special one bent to 1.5 meters radius . The thermo- pile indications were calibrated in absolute measure by observations on the radiation of a standard incandescent lamp supplied by BELL . ULTRAVIOLET COMPONENT IN ARTIFICIAL LIGHT . 5.
Страница 6
... observed deviations were reduced to absolute dynamical measure . As a matter of convenience and to establish an approximate ratio between the ultra violet radiation from the various sources studied and the radiation in the visible ...
... observed deviations were reduced to absolute dynamical measure . As a matter of convenience and to establish an approximate ratio between the ultra violet radiation from the various sources studied and the radiation in the visible ...
Страница 8
... observation . The energy cut off from the spectrum of a tungsten lamp by the crown glass would be of course very small , but perhaps not negligible , since as Schanz and Stockhausen have shown ( loc . cit . table VIII , figure 6 ) the ...
... observation . The energy cut off from the spectrum of a tungsten lamp by the crown glass would be of course very small , but perhaps not negligible , since as Schanz and Stockhausen have shown ( loc . cit . table VIII , figure 6 ) the ...
Страница 9
... observation , of which this is a fair sample , showed that the thermopile observations are about as reliable as those with a photometer . Some preliminary experiments made on Euphos and other glasses showed that the transmission of the ...
... observation , of which this is a fair sample , showed that the thermopile observations are about as reliable as those with a photometer . Some preliminary experiments made on Euphos and other glasses showed that the transmission of the ...
Страница 11
... observed that a number of the lines are associated in close groups which with small dispersion mass into heavy lines . The relative intensity of the lines , as is well known , shifts consid- erably with the degree of excitation of the ...
... observed that a number of the lines are associated in close groups which with small dispersion mass into heavy lines . The relative intensity of the lines , as is well known , shifts consid- erably with the degree of excitation of the ...
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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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