Categories Earth Sciences Mathematics How do we know the Earth is round? Post author By Keith Post date November 25, 2012 1 Comment on How do we know the Earth is round? Source: NASA/Apollo 17 The Earth, as seen by astronauts aboard Apollo 17. Source: NASA (public domain). Continue reading “How do we know the Earth is round?” Tags featured, Geography, Geometry, Trigonometry
The Earth, as seen by astronauts aboard Apollo 17. Source: NASA (public domain).
