Yes, Pb would continue to decay at the same rate. However, once a mineral has experienced weathering, it is no longer a closed system. Parent and daughter could have been added or lost. Thus it is not possible to rely on the ration of Parent: Daughter to determine how much time has passed.

@@EarthRocks thank you!

You have to have a KZfaq premier membership to save it. It's a KZfaq thing...

Thank you for your feedback. You are correct that in this short video, I focus on the Earth tilting towards and away from the Sun. I highlight locations and times where the sun hits directly at 90° and where it is fully present or never present (Arctic and Antarctic circles). I do indicate that direct sunlight provides the most intense sun and heat, but I do not discuss how sun hitting at an angle less than 90° is more dispersed over a larger area on a spherical object (Earth) and thus provides less overall heat. It would be a good addition for a new version. I will add it to my list. Nonetheless, I do focus at the start on rebutting the idea that the Earth's distance from the Sun has any impact on the seasons. Perhaps because it comes at the start, it was less impactful for you, who were looking for it later on? Here is the script: docs.google.com/document/d/1GgnE_BJbENVlFSODx4M4HuNH5yv9fRlX7emCwvvIVD0/edit?usp=sharing **I will create a new version eventually, so I appreciate the feedback.

Thanks for rapid response and positive comments. I was indeed aware of the earlier rebuttal regarding distance being a factor, but I feared there may be a disconnect from later discussion for some viewers.

Thank you for your feedback. 😀 Note: unfortunately sand wouldn’t show foliation. It’s equidimensional. To see foliation, you need an elongated mineral like actually actinolite or kyanite or hornblende. These have shapes similar to pens. Or flat planes like micas (and paper). Only these will align when put under pressure.

What a fabulous story. Thank you for sharing it! Makes my day. ❤️

Because to a tsunami (from its perspective), the ocean seems like a shallow puddle. The wavelength of a tsunami is about 200 km. It thus feels bottom at 100 km depth. Anything shallower than 100 km is dragging on the tsunami wave energy and showing it down. The deepest part of the ocean is only 11 km.

Because the earth is a spinning sphere, and it spins around a single axis that has two ends -- one north and the other south. There is no east and west spinning pole!

Nothing other than the chemistry and oceanography textbooks already referenced in the introduction. I think the content of this video has been fairly well understood for so long that there are no recent articles/reference papers. However, if you have a more specific question you're trying to address, please share. Glad you enjoyed it. :)

Of course not, as indoctrinated clowns such as yourself are only too happy to believe in fairy tales.

'Teachers' frequently teach subjects that they have no clue about.

You're very welcome. Thank you! :)

The location of the moon would be in a different position as it travels in the sky. Why are you asking this question anyway?

@@sailorman8668 The sun would give 12 hours of sunshine to every country, as it did in the green planet, wasn't sure if it had an effect regarding the moon and the earth.

It depends on your viewpoint, as to which way the earth is tilted.

its the time of the year when day and night are approximately equal length. it happens twice a year. once in september once in march.

Do you actually not know how to do a 'google search'?

The Earth’s global mean temperature doesn’t increase when the Earth is closest to the Sun because the very large heat capacity of the Southern Ocean around Antarctica is very slow to respond. Meanwhile the Northern Hemisphere land masses tilted away from the Sun cool rapidly during their winter pulling the global mean temperature down as incident energy from the Sun increases. Thus low heat capacity leverage of the Northern land masses affects temperature measured by thermometer more than changes in total solar irradiance during the Earth’s passage around the Sun.

I wonder why you failed to notice where reference was made in the video at time 0:52, where both 'Perihelion' AND 'Aphelion' were shown in the diagram of the earth's orbit around the sun?