Activity for David Berrebyâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
Could a spacefaring people preserve the idea that their world is the center of the universe? Cosmology since Einstein makes it clear that it's not quite right to say one body in space "revolves around" another, right? Einstein wrote: "The two sentences, 'the sun is at rest and the earth moves,' or 'the sun moves and the earth is at rest,' would simply mean two different conventions concernin... (more) |
— | about 6 years ago |