¶ Spherical Triangle Sequence
← Spherical Triangle Sequence (1) | Spherical Triangle on Earth’s Surface = Four Triangles →
Index Entry
Spherical Triangle Sequence:
“When we get to the middle [of the sphere] you are more or less willing to concede both hemispheres, and then you get caught on to the fact that those were 180 degree triangles. . . . What had been the big one is now becoming the little one, and what had been the little one is becoming the big one . . . We get down finally to triangles where the angles are approaching 70 degrees, and they finally get down nearer to sixty degrees and so many minutes. They will never get to 60. Even the most local one will never be 60 degrees. So spherical triangles then do have a great variety of sums of their angles.”
¶ Citations
- OREGON Lecture #6, p. 207, 10 Jul’62
