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- 책의 혁명과학동아 1987년 12호
- will represent several weeks of reading. When such things finally come on the market, they will undoubtedly be considerably more expensive than ordinary books, but the price should come down wi ...
- 1백억 광년 떨어진 곳에과학동아 1987년 11호
- was too dim to see, but its gravitational pull bent the quasar's light a tiny bit. The light was bent inward on either side of the galaxy so part of the light crossed the other part very slight ...
