Recent content by dsr52

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    Undergrad When did nuclear fusion in the sun really start ?

    ... thanks to all you guys for taking the time to respond ... it was very helpful ...
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    Undergrad When did nuclear fusion in the sun really start ?

    here are some sites I used for info ... http://www.astronomy.ohio-state.edu/~depoy/courses/AST172_LECTURE_NOTES/Unit2/energy3.html http://hyperphysics.phy-astr.gsu.edu/hbase/astro/procyc.html http://ircamera.as.arizona.edu/NatSci102/NatSci102/lectures/suninterior.htm ... thanks ...
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    Undergrad When did nuclear fusion in the sun really start ?

    - possible sun timeline - 3,130,000 years for molecular gas to condense into protostar - 40,000,000 for core to condense and heat up to 15 million K - 43,130,000 total - sun has only enough matter to 'burn' by gravitational pressure for 100/300 million yrs - first stage of...