View Full Version : Universe Puzzle No. 3

2010-Mar-01, 10:15 AM
As with last week's Universe Puzzle, something that cannot be answered by five minutes spent googling, a puzzle that requires you to cudgel your brains a bit, and do some lateral thinking. Which is the 'odd one out'? And why? aragonite, diamond, ice, olivine This is a puzzle on a "Universal" topic – astronomy and astronomers; space, satellites, [...]

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