Comet Calendar, The Official Event Calendar for UT Dallas http://www.utdallas.edu/calendar/rss.php en-us This week's events for Natural Sciences & Mathematics at UT Dallas Mathematics for Life: Are You Teaching Students What They Really Need? http://www.utdallas.edu/calendar/event.php?id=1220417364?WT.mc_id=CalendarRSS http://www.utdallas.edu/calendar/event.php?id=1220417364?WT.mc_id=CalendarRSS Tuesday, Mar 31
(4 p.m. - 5 p.m.)

How can we solve the national debt crisis? Is it a good idea to take on a student loan? Is it safe to talk on a cell phone while driving? Are there viable energy alternatives to fossil fuels? What could you do with a billion dollars? Could simple policy changes reduce political polarization? These questions may seem very different, but they all share two things in common. First, they all concern important topics that can be understood only with clear quantitative or mathematical thinking. Second, they are all topics that, at least traditionally, have been noticeably absent from the standard mathematics curriculum. This presentation will offer a series of examples of this disconnect, along with suggestions on how to rectify it and improve mathematics education.

Astrophysicist, author, and educator Jeffrey Bennett’s extensive experience includes teaching at every level from preschool through graduate school, proposing and helping to develop the Voyage Scale Model Solar System on the National Mall in Washington, DC and serving two years as a Visiting Senior Scientist at NASA Headquarters, where he helped create numerous programs designed to build stronger links between the research and education communities.

 

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What is Relativity? An Intuitive Introduction to Einsteins Ideas and Why They Matter http://www.utdallas.edu/calendar/event.php?id=1220417365?WT.mc_id=CalendarRSS http://www.utdallas.edu/calendar/event.php?id=1220417365?WT.mc_id=CalendarRSS Tuesday, Mar 31
(7 p.m. - 8 p.m.)

This year (2015) marks the 100th anniversary of Einstein's completion of his General Theory of Relativity, yet the vast majority of students, teachers, and the public know very little about the critical importance of either the special or general theories to modern understanding of the universe. In this presentation, based on his book What is Relativity? from Columbia University Press, Dr. Bennett will introduce you to the basic ideas of Einstein's theories and discuss why they are important to everyone. (He’ll also help you understand the movie Interstellar.) No prior knowledge of physics or relativity will be assumed.

Astrophysicist, author, and educator Jeffrey Bennett’s extensive experience includes teaching at every level from preschool through graduate school, proposing and helping to develop the Voyage Scale Model Solar System on the National Mall in Washington, DC and serving two years as a Visiting Senior Scientist at NASA Headquarters, where he helped create numerous programs designed to build stronger links between the research and education communities.

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Physics Colloquium: Effective Potentials and Morphological Transitions for Binary Black-Hole Spin Precession http://www.utdallas.edu/calendar/event.php?id=1220416988?WT.mc_id=CalendarRSS http://www.utdallas.edu/calendar/event.php?id=1220416988?WT.mc_id=CalendarRSS Wednesday, Apr 1
(4 p.m. - 5:15 p.m.)

Dr. Michael Kesden (UT Dallas)

     Generic binary black holes have spins that are misaligned with their orbital angular momentum.  I will derive an effective potential for binary black-hole spin precession with which I can solve the orbit-averaged spin-precession equations analytically for arbitrary mass ratios and spins.  These solutions are quasiperiodic functions of time: after a precessional period the spins return to their initial relative orientations.  They classify black-hole spin precession into three distinct morphologies between which the black holes can transition during their inspiral.  They also can be used to derive a precession-averaged evolution equation that can be numerically integrated on the radiation-reaction time, allowing black-hole spins to be tracked statistically from formation to merger.  This new equation can be used to predict the signatures of black-hole formation in the gravitational waves emitted near merger and the distributions of final spins and gravitational recoils.

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