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April 26, 2005: Astronomy: Origins of Matter / Orders of Magnitude

Readings

On Prof. Whittle’s web site under "Public Outreach", find:

 - A Brief History of Matter

 - Nature's Design

 - Also see materials associated with Big Bang Acoustics

Questions

  • Our lives are centered in molecular matter. How common is molecular matter in the solar system, the galaxy, the Universe? Why is it so rare?
  • Creating complex systems requires energy. Track the energy that has created the biosphere back to its ultimate source. You will need to go beyond and prior to the sun.
  • The richness of our world hinges on its composition: the variety of chemical elements, each quite unique in its properties. Where have these elements come from? Why isn't there just one or a few elements?  Why 92?
  • Matter assembled by electrostatic forces (molecules) exhibit vast omplexity. Why is this not true for matter assembled by nuclear or gravitational forces?
  • Our world and our technology accesses a limited range of what the Universe and the forces of nature can provide. What are the range of conditions and "technologies" available to the Universe if we view it as a creative entity?
  • The Universe assembles structures in four basic units: nuclei, atoms, stars/planets and galaxies. Why just these four and not more?
  • Why is there structure? Why isn't the Universe smooth?
  • Why is there anything at all? Where does all the matter in the Universe come from?

Additional Resources

The Hubble Site

Hubble Heritage Project

NASA Website

Speaker

Prof. Mark Whittle was born and educated in England, obtaining a bachelor's degree in Physics at Oxford and a PhD in Astronomy at Cambridge. Following post-doctoral fellowships at the ...