Discounting mountains, valleys, and other gross surface features, is there any place on Earth from which the Moon is not visible at all?
Frank X. Guthrie
Just as the Sun is visible for 6 months out of every 12 at any point on the surface of the
Earth, the moon can be seen from any point on Earth's surface at some time. The Moon is
only 'invisible' to Earth in its 'New' phase when its lighted side faces away from
Paul Walorski, B.A., Part-time Physics Instructor
'The mathematician's patterns, like the painter's or the poets, must be beautiful; the ideas, like the colours or the words, must fit together in a harmonious way. Beauty is the first test: there is no permanent place in the world for ugly mathematics.'