The bizarre orientation of the planet, which orbits the sun tipped on its side, reveals that its inner core has a stronger influence on its weather patterns than the distant star. The green and blue regions show where the atmosphere is clear, allowing sunlight to penetrate deep into Uranus.
One creative answer to why is a raven like a writing desk is they both come with inky quills. Lewis Carroll never intended an answer to the question of why a raven is like a writing desk. The raven-writing desk riddle hails from Lewis Carroll's Alice's Adventures in Wonderland.
The April 2017 edition of Bandersnatch, the Newsletter of the Lewis Carroll Society [Issue 172, ISSN 0306-8404, Apr 2017], published the following solution, proposed by puzzle expert Rick Hosburn: Why is a Raven like a Writing-desk?