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Comment Re:14 years? (Score 1) 41

This depends considerably on the paper. Acidic paper, widely used because it's cheap, oxidizes in a few decades and degrades as you have seen. Because of this, acid-free paper has become increasingly popular. Your newer books are in fact likely to last much better than the ones dating from the 20th century.

Comment Re:Spacecraft can have solar sails (Score 1) 187

The first person to think of the concept of solar sails was Johannes Kepler in 1610, when he observed that comets' tails always pointed directly away from the sun and speculated that whatever force caused that could be harnessed by sails. Konstantin Tsiolkovsky in 1921 made the first serious proposal, with the concept of light pressure being fairly well-understood at that point.

As far as Star Trek is concerned, I might point out that while TOS never had solar sails, Deep Space Nine did entire episode centered around a solar sail vessel ("Exploters").

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