Posted by RRC on March 05, 2008 at 19:52:
In Reply to: Columbus egg posted by S.A. Mallal on March 05, 2008 at 18:47:
: What does 'Columbus egg' mean and what is its background?
A Columbus's egg is something that is obvious once you know the secret. You can read about it here... https://en.wikipedia.org/wiki/Egg_of_Columbus