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The Authors
For lot's more videos on soil moisture topics, see Drs Selker and Or's text-book support videos https://www.youtube.com/channel/UCoMb5YOZuaGtn8pZyQMSLuQ/playlists
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Category Archives: geology
How long was the last magnetic reversal – and why might subducting slabs have had a say in what it looked like?
A new paper on the chronology of the last magnetic reversal concludes it took 20,000 yrs, and there were two distinct excursions – where the field becomes weak and disorganized, but it recovers without reversing polarity – before the main event about … Continue reading
Whet your Appetite with these 45+ Books on Water
For some reason, I have a lot of books about water on my shelves. But my collection, seems like a drop in the ocean (forgive me) compared to all of the great books on water that are out there. I … Continue reading
Earthquake prediction is a fool’s errand
If you want to make earthquake scientists jumpy, all you need to do is ask, "can you predict the next earthquake?" In fact, any variation on the theme of ‘earthquake’ and ‘prediction’ will do – unless it is one which … Continue reading
A very slow magnetic doom
Why an ‘imminent’ reversal of the Earth’s magnetic field doesn’t mean what most people think it means. Continue reading
Simulating radioactive decay
3.8 billion years! 4 billion years! 4.4 billion years! 4.57 billion years! When discussing the age of the Earth in introductory geology, I think it is important for students to know at least the basic principles of where these ages … Continue reading
Nice plan for content warnings on Mastodon and the Fediverse. Now you need a Mastodon/Fediverse button on this blog.