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Hello, Plücker got the chair for physics at Bonn in 1835 1836. But as a mathematician his main focus was math. This changed in 1847, when he got tired for his not too good reputation in German math. From 1847 on, his main focus was physics. All this is stated in much greater detail in s:de:ADB:Plücker, Julius (in German, I'm afraid). Rgds --Boobarkee (talk) 00:03, 22 August 2009 (UTC) Correction to 1836 Boobarkee (talk) 10:15, 22 August 2009 (UTC)
The phrase "the three lines in the hydrogen spectrum" seems to be a mistake. There are four visible lines in the same. Plucker might have genuinely believed that there were three. —Preceding unsigned comment added by 18.104.22.168 (talk) 13:58, 10 February 2011 (UTC) See Hydrogen spectral series.
Did Germany exist when he was born? I don't think so. Here Germany was found after his death. In 1815, German Confederation was formed. Before that, it was called Holy Roman Empire. Though present day it is Germany; but that doesn't make him German by nationality. In 1806, Confederation of the Rhine was formed by Napoleon Bonaparte.
So we need to fix it. Please arrive at a conclusion. Have a look at [] for cross-checking. aGastya✉ Dicere Aliquid :) 14:23, 27 April 2015 (UTC)