Six lectures on light : delivered in America in 1872-1878 (1886)
Tyndall, John, 1820-1893 · New York : D. Appleton · leaf 162
, and which is calledthe polarizer. Then we have the plate of gypsum^supposed to be placed at S, fig. 38), and then theprism in front, which is called the analyzer. On itsemergence from the first prism, the light is polarized;and, in the particular case now before us, its vibrationsare executed in… … two diiections. Draw a line (a h) to represent theamplitude of the vibration on the emergence of thelight from the first Nicol. Let fall from the two endsof this line two perpendiculars on each of the arms ofthe cross; then the distances (c d^ e f) between thefeet of these perpendiculars represent…
Light
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![An illustration from Perspectiva; hierinnen auffs kürtzte beschrieben, mit Exempeln eröffnet vnd an Tag gegeben wird, ein newer besonder kurtzer, doch gerechter vnnd sehr leichter Weg, wie allerley Ding, es seyen Corpora, Gebew, oder was möglich zuerdencken vnd in Grund zulegen ist, verruckt oder vnuerruckt, frener in die Perspectyf gebracht werden mag, on einige vergebliche Linie, riss vñ Puncten, [et]c. dergleichen Weg bisshero noch nit bekant gewesen (1571)](https://img.insideoutlibrary.com/img/200/ia-perspectivahieri00lenc-32-18.webp)
