Astrophysicists reveal why Earth’s day was a constant 19.5 hours for over a billion years

https://phys.org/news/2023-07-day-hours-astrophysicists-reveal-earth.html

• Astrophysicists at the University of Toronto discover that a billion-year pause in Earth’s rotational slowdown kept our day at a constant 19.5 hours.
• The tidal stalemate between the sun and moon was caused by the link between the atmosphere’s temperature and Earth’s rotational rate.
• Rising temperatures from global warming could lead to a longer day sooner than expected.