Popular Scientific Recreations in Natural Philosophy, Astronomy, Geology, Chemistry, Etc., Etc., EtcW.H. Steele, 1883 - 781 páginas |
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Página 144
... portion of the sun passing through the metallic vapours surrounding the orb in a state of incandescence , such as sodium , iron , etc. One of Fraunhofer's lines , a black double line known as D in the yellow portion of the spectrum ...
... portion of the sun passing through the metallic vapours surrounding the orb in a state of incandescence , such as sodium , iron , etc. One of Fraunhofer's lines , a black double line known as D in the yellow portion of the spectrum ...
Página 475
... portion , say kil , is an arc , and the line , k l , is the chord of that arc . A line like m n is a sccant , and op is a tangent , or a line touching at one point only . We may now resume our consideration of the angles by means of the ...
... portion , say kil , is an arc , and the line , k l , is the chord of that arc . A line like m n is a sccant , and op is a tangent , or a line touching at one point only . We may now resume our consideration of the angles by means of the ...
Página 520
... portion , n m , of the surface of the earth , since its section is five - ninths of the earth's diameter . The inhabitants of this portion of the earth do not receive light from all parts of the sun , consequently a part of this ...
... portion , n m , of the surface of the earth , since its section is five - ninths of the earth's diameter . The inhabitants of this portion of the earth do not receive light from all parts of the sun , consequently a part of this ...
Contenido
Science in the Open AirAphidesEvaporation by LeavesAn AquariumThe | 6 |
WATER | 45 |
CHAPTER XIX | 212 |
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Popular Scientific Recreations in Natural Philosophy, Astronomy, Geology ... Gaston Tissandier Vista previa limitada - 2018 |
Popular Scientific Recreations in Natural Philosophy, Astronomy, Geology ... Gaston Tissandier Vista previa limitada - 2016 |
Popular Scientific Recreations in Natural Philosophy, Astronomy, Geology ... Gaston Tissandier Vista previa limitada - 2018 |
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ammonia angles animals antimony apparatus appear Aratus atmosphere attraction axis ball balloon battery body called carbonic acid carpels cause cells centre chemical clouds colour combination compound contains copper crustacea crystals cylinder disc distance earth effect electric current electricity electrophorus equal experiment feet flowers fluid force give glass globe gravity heat hydrogen illustration fig infusoria instrument iron Jupiter known lamp Leyden jar light lime liquid machine magnet means mercury metal miles minerals moon motion move movement nature needle nitric acid object observed obtained Oolite oxide oxygen paper particles pass perceived phenomena phosphorescent piece pistil plants plate platinum pole portion position Praxinoscope pressure produced rays retina rocks rotation round salt seen silver sound stamens stars substances sulphate sulphuric acid surface temperature termed tion tube turn vapour vegetable vibrations weight wheel wind wire zinc