How so? Did the earth stop rotating - go backwards - then forwards again - just to move the shadow on a sundial back 10 degrees?
"When the earth rotates about its axis, the sun appears to “move” across the sky, causing objects to cast shadows. A sundial contains a gnomon, or a thin rod, that casts a shadow onto a platform etched with different times. As the sun changes relative positions over the course of a day, the rod’s shadows change as well, thus reflecting the change in time."
How do sundials work? – Yale Scientific Magazine
The axis exists in the globe, so that is the connection to the sundial.
- 2
- Show all