School of Natural Sciences and Mathematics

Department of Physics Faculty Present: Cosmology, The Accelerating Expansion of the Universe and Cosmology, The Science of the Whole Universe

Cosmology is the study of the universe. If you are interested in the vast universe in which we reside, you won't want to miss these public lectures!

COSMOLOGY

Exciting cosmology lectures presented by Department of Physics faculty members, Dr. Ishak-Boushaki on February 22nd, 2006 and by Dr. Wolfgang Rindler on February 27th, 2006.

Cosmology: Accelerated Expansion of the Universe, presented by Professor Mustapha Ishak-Boushaki on Wednesday, February 22nd, 2006, 4 p.m. at Kusch Auditorium, FN 2.102.

Dr. Ishak-Boushaki will review theory from astronomical observations about the standard cosmological model including the surprising discovery that the expansion of the universe has entered a phase of acceleration. A paramount question is to determine if the cosmic acceleration is due to an energy component (dark energy) in the universe or if it is due to a modification in the gravity sector.

Dr. Ishak-Boushaki will also discuss how a recently proposed procedure (which goes further than previous work and uses a consistency check based on Einstein's General Relativity) hopes to answer this question in the near future. It was implemented and tested using different combinations of simulated data from the Cosmic Microwave Background Radiation, Weak Gravitational Lensing, and Supernova data.

Cosmology: The Science of the Universe, presented by Professor Wolfgang Rindler on Monday, February 27th, 2006, 7 p.m. at the Conference Center, CN 1.212.

Dr. Wolfgang Rindler will take attendees through an elementary survey of modern cosmology, wherein the whole universe – its galaxies stretching without limit in all directions – is treated as a huge dynamical system whose motion is governed by its own gravity.

How did it all start, and how will it end? What is the universe made of? Ordinary matter, as we know it here on earth, accounts for less than 5% of it! The rest is mysterious “dark matter” and “dark energy”, the subjects of intense ongoing research. All these matters will be discussed, along with brief excursions into life in the universe and the possible existence of other universes.

This interactive, and lively, discussion is designed to give teachers new information relating to the Nature of Science, Systems and Energy that can be woven into current curricula. Teachers will receive two hours of professional development credit.

  • Updated: December 19, 2007