Forbes, 1911, Why the earth appears concave. An optical illusion observed from balloons
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| Original title | Why the earth appears concave. An optical illusion observed from balloons |
|---|---|
| Simple title | Why the earth appears concave. An optical illusion observed from balloons |
| Authors | Charles Forbes |
| Date | 1911 |
| Countries | US |
| Languages | en |
| Keywords | optical illusion, balloons, aerial observation |
| Journal | Scient. Amer. Suppl. |
| Related to aircraft? | 1 |
| Page count | |
| Word count | |
| Wikidata id |
Sources
- Brockett (1921), page 488, entry 5: Forbes, Charles. Why the earth appears concave. An optical illusion observed from balloons. Scient. Amer. Suppl., No. 1866 (Oct. 7, 1911), New York, pp. 227-228. (B2p0488e05)
