Field record · Mathematical consequence
The rainbow's forty-two degrees
Placed beside Adams's 42 because both use the same numeral. The kinds of connection are different and must not be flattened.
This correspondence holds · Sources checked · 1637
Observed
- A primary rainbow is seen at about 42 degrees from the antisolar point.
- Descartes accounted for the geometry in the Météores of 1637 using refraction and one internal reflection in spherical droplets.
Connection
Placed beside Adams's 42 because both use the same numeral. The kinds of connection are different and must not be flattened.
- Mathematical consequence
- Coincidence compatible
Interpretation
The optical 42 holds as physics. Pairing it with Adams is coincidence-compatible unless someone shows a causal or historical path, which this record does not.
Placed beside
Keep the difference visible
This record
The rainbow's forty-two degrees
Mathematical consequence
Beside
Forty-two as an author's joke that became an aperture
Cultural inheritance
Beside
The forty-second parallel did not hold as destiny
Coincidence compatible
Mechanism
Known mathematical. Rainbow angle: known mathematical and physical consequence of water's refractive index. Adams pairing: coincidence compatible.
Open questions
If a number recurs in physics and in a joke, what kind of recurrence is that?
Read beside this
- Don't PanicTrue stories of what humans do when the ending is still open.
Sources
- Descartes, Les Météores (1637) · Geometric account of the rainbow.
Related records
Canonical plate. · Sources checked.