Scientific Genesis: 2. Origin of the Solar System (1975)

[candor1982]

I totally agree with professor Manuel he is a very good thinker and wise man.

[ThePlatoon4]

man this sucks, all you guys say is who is wrong and who is right.

i dont care who is wrong or right, space is still epic :D

[omatumr]

Personal attacks are childish. Please address the experimental data:

"Attraction and repulsion of nucleons: Sources of stellar energy", J. Fusion Energy 19, 93-98 (2001).

"Composition of the solar interior: Information from isotope ratios", ESA SP-517, pp. 345-348 (2003).

"The Sun is a plasma diffuser that sorts atoms by mass", Physics of Atomic Nuclei 69, 1847-1856 (2006)

[RigelKentaurusA]

"I have a PhD in nuclear chemistry... and space science."

Is in *direct* conflict with

"... neutron repulsion..."

"The sun is made mostly of iron" and that there's a neutron star in the sun.

What a nut.

[carysatch]

@RigelKentaurusA when you don't understandd something, the best thing to do is to learn about it before you criticize and show your ignorance. Also such lack of respect shows some kind of serious self-loathing, under-developed puny human -----> may a bowling-ball-sized meteor strike you in the head. this is a presentation of the facts, so, either get to studying or STFU. have a crappy day anus.

[omatumr]

Artynz.

Hydrogen (H) is element #1, the lightest of all elements.

Helium (He) is element #2, the next lightest element.

The photosphere, the top of the Sun's atmosphere, is 91% H and 9% He .

Why? The Sun is a plasma diffuser that sorts atoms by mass.

See the data here: "The Sun is a plasma diffuser that sorts atoms by mass", Physics of Atomic Nuclei 69 (2006) 1847-1856; Yadernaya Fizika 69, number 11, (Nov 2006)

[artynz]

Iron is the most common element in the earth and meteorites. However it is well down the list for the Sun (you got this wrong). Hydrogen and Helium are the dominant substances in the Sun.

[carysatch]

@artynz watch it again and listen this time...also read, if you can follow, the facts are what is presented here in a very clear way for you to research it further ---- even stating that these findings go against the previously accepted norm......geeesh, you also need a bowling-ball-sized meteor to hit you in the head, a.s.a.p.!

[IShootist]

Thanks for the reply, Doctor Manuel. The Xenon is strange only because it isn't the isotope found locally.

Could the same be said for the (relative) abundance of Helium 3 on Earth's Moon, compared to Earth?

[omatumr]

@IShootist Yes.

Values calculated for the "Age of the Universe" - from isotope ratios of Th and U on planet Earth - is one of the most unrealistic stories of modern science!

Continuously accumulated flaws will eventually sink even the best-funded ship, as has started to happen to the “Ship of Global Warming.” Other ships in the fleet are being dragged down too.

See Physics World comments today on APS support of the sinking “Ship of Global Warming”

[IShootist]

The use of the term 'strange' for the xenon isotope is confusing at first read, unless you are suggesting that the Xe-2 isotope is Strange Matter? Probably not, since the existence of Strange Matter would cause all the other matter it came in contact with to become Strange as well.

[omatumr]

@IShootist

Earth accounts for about 0.003% of the mass of the Solar System. But isotope abundances here are "normal" by definition.

Jupiter is ~318 times more massive that Earth, but its xenon is "strange", with about twice the "normal" abundance of Xe-136.

[omatumr]

@fgordon2 Analysis of xenon in samples from Mars and Jupiter [1] and in mineral separates of other, diverse types of meteorites [2] confirmed the story first seen in mineral separates of the Allende meteorite.

1. "Isotopic ratios in Jupiter confirm intra-solar diffusion", Meteoritics and Planetary Science 33, A97, abstract 5011 (1998).

2. "The enigma of helium and anomalous xenon," Icarus 41, 312-315 (1980)

[fgordon2]

@omatumr Since I don't know of any compelling evidence supporting either one of the theories (Hydrogen based vs Iron based sun), I think both theories would have to be considered when analyzing current and future data. As I've recently read, they're preparing an unmanned mission closer to Sun than before. Hope this will shed more light (no pun intended) on the current theories.

Thank you and waiting for the next episodes.

[fgordon2]

Sorry, I removed my initial comment by accident.

So, I was saying that this is very interesting and was asking how do we know the Allende meteorite is representative for the birth of our solar system.