Johann Wolfgang Dobereiner

Johann Wolfgang Döbereiner , 1780-1849, German chemist. From 1810 he was professor of the Univ. of Jena. He is known especially for his discovery of similar triads of elements, a step in the development of the periodic law . He discovered furfural, worked on the use of platinum as a catalyst, and invented a lighter (known as Döbereiner's lamp) that is ignited by the action of hydrogen on a platinum sponge.

Zender, (Johannes Wolfgang) Hans (b Wiesbaden, 1936). Ger. conductor and composer. Ass. cond., Freiburg Opera 1959. Prin. cond., Bonn Opera 1964–8; gen. mus. dir. Kiel 1969–71; prin. cond. Saar Radio SO 1971–84. Salzburg Fest. Début 1983. Gen. mus.-dir. Hamburg Opera 1984–7. Cond. Netherlands Radio Chamber Orch. from 1987. Cond. at Bayreuth 1975. London Début 1977. Comps. incl. opera Stephen Climax (1986); Zeitströme (Time Stream) (1974); Cantos I–V, vv., instr.; elec. works.