Tucson Area
Physics Teachers,
Don't forget
that our yearly opening meeting is Saturday, October 7th, at the U of A. We'll
meet at 8:30 for breakfast, generously supplied by the U of A Physics
Department. At 9:00 the talk starts, given by Dr. Brenda Frye of the Steward
Observatory:
Title:
"Finding the Best Natural Telescopes in Space”
---------------------------------
Abstract:
In this talk we will review the phenomenon of how mass bends light, or
gravitational lensing. We will recount the early gravitational
lensing experiment in 1919 that established how mass bends light. We will
then move on to discuss work in the present day, including the discovery of
images of distant galaxies that appear in multiple positions as a result
of lensing. We will see in which way these galaxy “photocopies”
enable measurements of the mass of the dark matter. And along the way we will
discuss the numerics of lensing to achieve a better insight into this
powerful tool of astrophysics.
It
promises to be super interesting.
Details:
We'll meet in PAS 218. PAS is on 4th Street between Highland and Park, on the
south side of the road. Only the West doors of the building will be open. Park
either at the 6th Avenue garage or the Tyndall Garage. A map is here. Parking is free
on weekends. Breakfast at 8:30, talk at 9:00, we aim to finish by 10:30.
If
you haven't been to TAPT before, this is a great meeting to attend. Come and
meet fellow science and physics teachers at all levels. We try to be a low-key
organization - there's a lot of sharing and no pressure to speak. At most
meetings, there is some information you can use in your classroom.
Everyone
is welcome! Feel free to pass this to other teachers that you know will be
interested in this subject.
Hope
to see everyone Saturday!
Best,
Karie
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