In the 1960s and 1970s, he was known in Germany as a popular science spokesperson and wrote magazine columns and numerous books and presented his own TV programs like Professor Haber experimentiert, Das Mathematische Kabinett, Unser blauer Planet, Stirbt unser blauer Planet?, Professor Haber berichtet, and WAS IST WAS mit Professor Haber. He was founding editor of the German science magazine Bild der Wissenschaft from 1964 to 1990. His memorable experiments included one where the onset of a nuclear chain reaction was simulated with hundreds of mousetraps, each one having been loaded with two ping pong balls.
The "gunk" between them might be due to the quoted paragraph getting twice closed and reopened. --- update --- There is no need to query within the doctype for the simple reason that we're inside it. Question is: if you're trying to apply some rule in the not-quoted section, what is it? There will be cases where you don't want to apply the rule in the next line, and you may have to do that. Besides, if the content of text X is 'gunk', the effect of scrolling through text X gets wiped and then restored, and the result is readopted. d2c66b5586