Unbelievable time required to cover the immense distances of space

I've no idea of the origins of this document which presumably is an old one. Or may be someone is having fun.

"If man should invade space ... at the terrific speed of two miles a minute"!!!

Includes very imaginative illustrations of "spaceships" that can do the traveling & interesting computed values of time required to reach various bodies in Sol (we aren't told their location relative earth used in calculations, but may be it's the most favorable one).

[via Boing Boing]