PV Gap

Tara Said:

What is age of solar system?

We Answered:

Calculate the gravitational self-energy of a sphere of solar mass and radius. Assume uniform density (not correct, but good enough for a first order approximation).

ie integrate G (density)^2 (volume of a sphere of radius r) (volume of a shell of radius r and width dr) / r -- from r equals zero to the sun's radius

Divide that by the power radiated by the sun to get a time.

The time isn't very long--a very perplexing problem before they figured out solar fusion.

Zachary Said:

Is there any link between terrestrial weather patterns and the 11 year Solar Cycle?

We Answered:

There is definately a link, though there is a debate about what that link is. Researcher Mike Lockwood's conclusions are that low solar activity triggers cold winters in Northern Europe, but it is a regional event -- it does not affect total global warming. The last two winters fit perfectly into his conclusions.

http://iopscience.iop.org/1748-9326/5/2/…
http://rspa.royalsocietypublishing.org/c…

Svensmark and Friis-Christensen have continued (at least as of 2007) to argue that solar activity does correlate with global temperatures though they needed to add warming from greenhouse gases of 0.14 degrees per decade to make their correlations work.

http://www.intellicast.com/Community/Con…

Troy Said:

What is preventing US energy Independence?

We Answered:

Democrats.

Beverly Said:

How much do you know about solar energy?

We Answered:

Hi, Solar energy is God's power supply for the earth. It causes plants to grow to give us food and fuel. It causes the temperature difference in the air to make wind.Without it we would freeze over very soon. It is atomic radiation energy. God put layers and the atmosphere around us or we could not live here. The sun gives light too or we would be in the dark. Seems God thought of everything for us. Pity we wouldn't think of him and thank Him for the wonderful place He made. nev r

Marcus Said:

Is solar power a popular form of energy in Israel?

We Answered:

Yes. Mostly for heating water.

But the strangest thing here is that the Galactic asker keeps asking strange questions and referring us to Wikipedia articles.

Perhaps the articles have been written or edited by the same asker?


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