Path: ...!2.eu.feeder.erje.net!feeder.erje.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: John Savard Newsgroups: sci.astro.amateur Subject: We're All DOOMED! Date: Sun, 14 Jul 2024 14:24:08 -0600 Organization: A noiseless patient Spider Lines: 20 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Injection-Date: Sun, 14 Jul 2024 22:24:10 +0200 (CEST) Injection-Info: dont-email.me; posting-host="3f0d5fd52253d8f71d9a8f0c3af840bf"; logging-data="328191"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18JoyNKmmNYM3Y9NZ0opDM+Pjl3FdQk2fo=" Cancel-Lock: sha1:dM9IEJihh8gS8DNQEG21Vmcsy98= X-Newsreader: Forte Free Agent 3.3/32.846 Bytes: 1914 Amazingly enough, https://www.ctvnews.ca/sci-tech/earth-s-core-has-slowed-so-much-it-s-moving-backward-scientists-confirm-here-s-what-it-could-mean-1.6952926 this article was written from a sober perspective, and not sensationalized at all. Which is a refreshing change from articles about asteroids passing by at entirely safe distances. However, I think they may have gone too far. If the Earth's core has slowed so much that its rotation has even reversed direction, this could have a larger consequence than just not needing leap seconds for a while in the future. And by larger consequences, I don't mean negative leap seconds. Since -1 times -1 equals plus 1, or since the external driving magnetic field is still in the same direction, maybe the consequence I'm worried about really isn't a danger. But the first thing I thought of when I read the article was that the phenomenon could be a sign of an impending magnetic field reversal, which would be bad. John Savard