Q&A - Cosmology: Galileo to Gravitational Waves
Δημοσιεύτηκε στις 10 Αυγ 2016
Why
is there a release of energy rather than just a deformation of
spacetime when black holes collide? Does the Universe have a finite
lifespan? Do gravitational waves take time to travel? Hiranya Peiris
answers questions from the audience following her talk.
Watch the full talk here: https://youtu.be/5HXOfIwl9Jo
Modern
fundamental physics contains ideas just as revolutionary as those of
Copernicus or Newton; ideas that may radically change our understanding
of the world; ideas such as extra dimensions of space, or the possible
existence of other universes.
Testing these concepts requires
enormous energies, far higher than what is achievable by the Large
Hadron Collider at CERN, and in fact, beyond any conceivable Earth-bound
experiments. However, at the Big Bang, the Universe itself performed
the ultimate experiment and left clues and evidence about what was
behind the origin of the cosmos as we know it, and how it is evolving.
And the biggest clue is the afterglow of the Big Bang itself.
In
the past decade we have been able to answer age-old questions
accurately, such as how old the Universe is, what it contains, and its
destiny. Along with these answers have also come many exciting new
questions. Join Hiranya Peiris to unravel the detective story,
explaining what we have uncovered, and how we know what we know.
Hiranya
Peiris is Professor of Astrophysics in the Astrophysics Group in the
Department of Physics and Astronomy at University College London. She is
also the Principal Investigator of the CosmicDawn project, funded by
the European Research Council
She is also a member of the Planck
Collaboration and of the ongoing Dark Energy Survey, the Dark Energy
Spectroscopic Instrument and the Large Synoptic Survey Telescope. Her
work both delves into the Cosmic Microwave Background and contributes
towards the next generation galaxy surveys that will yield deep insights
into the evolution of the Universe.
Subscribe for regular science videos: http://bit.ly/RiSubscRibe
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is there a release of energy rather than just a deformation of
spacetime when black holes collide? Does the Universe have a finite
lifespan? Do gravitational waves take time to travel? Hiranya Peiris
answers questions from the audience following her talk.
Watch the full talk here: https://youtu.be/5HXOfIwl9Jo
Modern
fundamental physics contains ideas just as revolutionary as those of
Copernicus or Newton; ideas that may radically change our understanding
of the world; ideas such as extra dimensions of space, or the possible
existence of other universes.
Testing these concepts requires
enormous energies, far higher than what is achievable by the Large
Hadron Collider at CERN, and in fact, beyond any conceivable Earth-bound
experiments. However, at the Big Bang, the Universe itself performed
the ultimate experiment and left clues and evidence about what was
behind the origin of the cosmos as we know it, and how it is evolving.
And the biggest clue is the afterglow of the Big Bang itself.
In
the past decade we have been able to answer age-old questions
accurately, such as how old the Universe is, what it contains, and its
destiny. Along with these answers have also come many exciting new
questions. Join Hiranya Peiris to unravel the detective story,
explaining what we have uncovered, and how we know what we know.
Hiranya
Peiris is Professor of Astrophysics in the Astrophysics Group in the
Department of Physics and Astronomy at University College London. She is
also the Principal Investigator of the CosmicDawn project, funded by
the European Research Council
She is also a member of the Planck
Collaboration and of the ongoing Dark Energy Survey, the Dark Energy
Spectroscopic Instrument and the Large Synoptic Survey Telescope. Her
work both delves into the Cosmic Microwave Background and contributes
towards the next generation galaxy surveys that will yield deep insights
into the evolution of the Universe.
Subscribe for regular science videos: http://bit.ly/RiSubscRibe
Watch more science videos on the Ri Channel http://richannel.org
The Ri is on Twitter: http://twitter.com/ri_science
and Facebook: http://www.facebook.com/royalinstitution
and Tumblr: http://ri-science.tumblr.com/
Our editorial policy: http://richannel.org/home/editorial-p...
Subscribe for the latest science videos: http://richannel.org/newsletter
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