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SUMMARY:Archimedeans x ENS Talk: Searching for Modifications to Gravity - 
 Prof. Anne-Christine Davis\, DAMTP
DTSTART:20241122T180000Z
DTEND:20241122T190000Z
UID:TALK224776@talks.cam.ac.uk
CONTACT:Daniel Nguyen
DESCRIPTION:Gravity has been tested over many years in the lab and the sol
 ar system. Small deviations from Newton theory can be explained by Einstei
 n general relativity. The modern theory of gravity has passed all tests in
  the solar system. However beyond the solar system there have been results
  over the years suggesting we may have missed something and the Universe m
 ight be undergoing a period of accelerated expansion today\, possibly expl
 ained by a so-called Cosmolgical Constant. I will discuss how we can test 
 gravity and search for deviations from the usual theory. I will show the e
 ffect the ‘cosmological constant’ has on the dynamics of the local gro
 up of galaxies and how we can search for ‘modified gravity’ using the 
 Sun.  Knowledge of general relativity is definitely not required.
LOCATION:Center for Mathematical Sciences\, Lecture room MR2
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