Dark Matter Teacher Guide - Perimeter Institute

Who are the Physicists in the Video?
Figure 23 The ATLAS detector at the Large Hadron
Collider (LHC) experiment at CERN
Professor Joao Magueijo is a
physicist at Imperial College and
is most well known for proposing
a theory that says the speed
of light was faster in the early
universe (variable speed of light).
Professor Cliff Burgess is a
well-known particle physicist
at McMaster University and
Perimeter Institute for Theoretical
Physics. He has a broad range
of interests that include string
theory, cosmology, and
particle physics.
Dr. Claudia de Rham is a
postdoctoral researcher at
McMaster University and
Perimeter Institute for Theoretical
Physics. She works on
extra-dimensional theories
within cosmology.
Dr. Chris Jillings is an
experimental physicist working
on a dark matter experiment
at SNOLAB called DEAP (Dark
matter Experiment with Argon
and Pulse-shape-discrimination).
Professor Slava Mukhanov is a
physicist at Ludwig-Maximilians
University of Munich who is
extremely well-known as one of
the pioneers of inflationary theory.
This theory says that the universe
expanded by a vast amount for a
small fraction of a second during
the early universe.
Dr. Justin Khoury is a
cosmologist at Perimeter
Institute for Theoretical Physics
who has researched, amongst
many other things, an alternative
to the standard big bang /
inflationary theory that says
that the universe existed prior
to the moment of the big bang
(ekpyroptic universe).
Associate Professor Ubi Wichoski
is an experimental physicist
at Laurentian University. After
working in theoretical cosmology
and cosmic-ray physics, he is
now engaged in two underground
experiments: PICASSO (Project
in Canada to Search for
Supersymmetric Objects)
and EXO (Enriched
Xenon Observatory).
What are the Four Main Pieces of
Evidence for Dark Matter?
At one point in this chapter of the video, Chris Jillings alludes to what
he views as the four primary pieces of evidence for dark matter.
They are:
• the orbital speeds of the stars within galaxies
• gravitational lensing
• the large-scale structure of the universe
• cosmic microwave background radiation
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