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...publishers to the enormous profit potential of encyclopedias. Although not all encyclopedias succeeded commercially, their elements sometimes inspired fut Needing an editor, the two chose a 28-year-old scholar named [[William Smellie (enc

{{Expert-subject|Chemistry|date=November 2008}} ...re vessel containing the aerogel. The end result of either process removes all liquid from the gel and replaces it with gas, without allowing the gel stru