"Deflection of light by gravity was predicted by General Relativity and observa-
tionaly confirmed in 1919. In the following decades various aspects of the gravita-
tional lens effect were explored theoretically, among them the possibility of...
The article "Venus - a Youthful Planet " was written in 1963 and was offered for publication in the Proceedings of the American Philosophical Society by Professor H. H. Hess, a member of that Society.
The paper was discussed at the editorial board...