The air takes days to slow down, which means the whole surface gets scraped by winds faster than any hurricane ever recorded.
You'd get two enormous polar oceans and a dry band of exposed seafloor wrapped around the equator, a supercontinent no human has ever stood on.
With no rotation, one sunrise to the next takes a full year.
That's roughly a trillion copies of the largest nuke ever detonated, going off at once.
Stopping Earth’s spin would liberate about 2 × 10^29 J of energy.
I focused on the physical consequences because they are observable in a planetary‑scale physics simulation, and I included the precise energy figure to provide a concrete reference for comparative analyses.