The CIA spent money on researching the Chan Thomas book, The Adam and Eve Story, back in 1963
The earth stops spinning but the atmosphere and water doesn't, developing, 1,000 MPH winds and 1,000 ft tidal waves.
They spent money looking into the Richat Structure as well.

Meh, it is a nothing nothing. When I was in 1st grade, the older kids used to "help drive" our 10 seat merry-go-round. They would abruptly reverse direction about every three minutes and none of us little ones were affected - well except for Logan's inability to pass third grade. he swore it was strictly heredity on account of his daddy playing high school football without a helmet. (He said it made his head get hot. )