Another Urinal Epiphany Comes True
Jul. 31st, 2008 07:57 pm![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
funraniumHoly crap, where the hell did that paper I wrote for Physics of Stars in 1994 go? Down to the estimated life span of the supermassive star, it looks like I nailed it in this news story.
That's three for three for my finest college thinking whilst urinating.
1) Magnetic pole flips are due to chaotic modes in the differential rotation of Earth's liquid Fe-Ni core. (think of Jupiter's bands to help imagine this)
2) Yes, volcanoes do actually re-erupt material from oceanic plates subducting beneath them because water that has "soaked" into the plate seeps out and changes the physical and chemical processes happening at the 30-300km depth. This fluid sucks up rare earths and metals, making the isotopic signature of the erupting lavas look like the sediments of the subducting plate even though the chemical concentrations may look very screwy.
3) Early stars that are 98%+ H-1 with traces of H-2, He-3, and He-4 are possible all the way up to 200 solar masses. The life span of a 200 solar mass star is somewhere in the neighborhood of 250,000 years. Beyond that mass, the growing spin of the condensing stellar cloud would fling the nascent superstar apart into a binary.
That's three for three for my finest college thinking whilst urinating.
1) Magnetic pole flips are due to chaotic modes in the differential rotation of Earth's liquid Fe-Ni core. (think of Jupiter's bands to help imagine this)
2) Yes, volcanoes do actually re-erupt material from oceanic plates subducting beneath them because water that has "soaked" into the plate seeps out and changes the physical and chemical processes happening at the 30-300km depth. This fluid sucks up rare earths and metals, making the isotopic signature of the erupting lavas look like the sediments of the subducting plate even though the chemical concentrations may look very screwy.
3) Early stars that are 98%+ H-1 with traces of H-2, He-3, and He-4 are possible all the way up to 200 solar masses. The life span of a 200 solar mass star is somewhere in the neighborhood of 250,000 years. Beyond that mass, the growing spin of the condensing stellar cloud would fling the nascent superstar apart into a binary.
