Showing posts with label Decay. Show all posts
Showing posts with label Decay. Show all posts

Thursday, January 7, 2021

Episode #181: Stellar Nucleosynthesis and Radiometric Dating

In this episode Russ gives a presentation, with slides, about the standard model processes that take place in stars to generate elements, how that process eventually results in novas and supernovas, and how supernovas and other similar very high energy events generate cosmic rays. When these cosmic rays hit earth, they result in "cosmogenic nuclides" like the radioactive Carbon 14 that is so often used to date material in archaeological settings.

We also run through a short list of the most often used dating techniques, how they work, what the problems are, what the ranges are, and what the margins of error are. We also look at the various assumptions and methods and theory behind these techniques.

As this was a slide show presentation, it may help to watch the video, so look for that on our youtube channel.



Saturday, October 31, 2020

Episode #171: The Velikovsky Heresies - Part 3

After returning from our trip through Arizona and Utah with Randall and Brad, we come back to the Tangent Cube at the end of the week for the next installment of our deep dive into The Velikovsky Heresies by Laird Scranton.

This episode we talk a lot about magnetism, remnant magnetism in lunar rocks, and calendar changes made by multiple ancient civilizations all around the same time. We talk about immense climate changes that accompanied the sudden change from a 360 day calendar year to a 365 day calendar year.

We also read about problems with various types of radioactive decay dating techniques, and how without knowing the exact amount of certain materials that existed in rock at the time of its formation, these techniques cannot give accurate dates, even assuming that the radioactive decay rate is a constant.


Much thanks to our friends over at Inner Traditions for allowing us to read large excerpts from one of their publications. Make sure to visit their online store and purchase a copy of The Velikovsky Heresies for yourself, or you can get it from Amazon.


Thanks to Henry Hablak for the awesome show art!