Nature, Količina 93Sir Norman Lockyer Macmillan Journals Limited, 1914 |
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Zadetki 1–3 od 78
Stran 296
... photographs were taken ( the northern set in England , the southern in South Africa ) with exposures of from two to two and a half hours , which sufficed to show stars down to the seventeenth magnitude on most of the plates . From a ...
... photographs were taken ( the northern set in England , the southern in South Africa ) with exposures of from two to two and a half hours , which sufficed to show stars down to the seventeenth magnitude on most of the plates . From a ...
Stran 306
... Photographs illustrative of landslides and upheavals on the Panama Canal . The photographs were taken in 1910 , 1912 , and 1914 . That of the Culebra Cut in 1910 shows an upheaval of the solid rock of the canal bottom due to un ...
... Photographs illustrative of landslides and upheavals on the Panama Canal . The photographs were taken in 1910 , 1912 , and 1914 . That of the Culebra Cut in 1910 shows an upheaval of the solid rock of the canal bottom due to un ...
Stran 541
... photographs accompany the text . In the first instance he points out that Halley's comet at its return in 1910 , though a brilliant and interesting object to the naked eye , especially in May , was nevertheless a disappointment when ...
... photographs accompany the text . In the first instance he points out that Halley's comet at its return in 1910 , though a brilliant and interesting object to the naked eye , especially in May , was nevertheless a disappointment when ...
Vsebina
Brauner Prof B New Units in Aerology 136 | 9 |
Brown Prof W Change of Length in Nickel Wire 232 | 17 |
Appleyard Direct Measurement of the Napierian Base 231 | 24 |
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absolute magnitude acid æther appears April Astronomical atomic atomic weight balloon brightness British cent chemical chemistry College colour committee contains density described discussion edition effect electric electrons Engineering expedition experiments fact Funafuti Geological giant stars given gives heat Hermann et Fils illustrated important increase industry interesting investigation J. J. Thomson laboratory large number larvæ lectures lines London magnetic magnitude March matter means measures ment metals Meteorological method motion Museum National Physical Laboratory nature observations Observatory obtained origin paper parallax period photographs physical plants plates present Price problems produced Prof published radiation radium recent rocks ROYAL INSTITUTION Royal Society schools scientific sodium amide solar species spectra spectral classes spectrum stars of Class surface temperature theory tion tube University velocity volume W. H. Bragg