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Science > Physics > 2016 >
Gravitational waves
A Ripple in Space-Time
NYT 23 February 2016
A Ripple in Space-Time
Video Out There | The New York Times
23 February 2016
About a hundred years ago,
Einstein predicted the existence of gravitational waves,
but until now, they were undetectable.
YouTube
https://www.youtube.com/
watch?v=z7pKXVkcDzs
Related
LIGO Hears a
Ripple in Space-Time
By DENNIS OVERBYE,
JONATHAN CORUM and JASON DRAKEFORD
NYT
Feb. 11, 2016 | 4:36
About a hundred
years ago,
Einstein predicted
the existence of gravitational waves,
but until now,
they were undetectable.
http://www.nytimes.com/video/science/100000004200661/
what-are-gravitational-waves-ligo-black-holes.html
October 16, 2017
For the first time,
scientists have caught
two neutron stars
in the act of colliding,
revealing
that these strange
smashups
are the source
of heavy elements
such as gold
and platinum.
The discovery (...) solves
a long-standing mystery
about the origin
of these heavy elements
— which are found
in everything
from wedding rings
to cellphones
to nuclear weapons.
It's also
a dramatic demonstration
of how astrophysics
is being transformed
by humanity's
newfound ability
to detect
gravitational waves,
ripples in the fabric
of space-time
that are created
when massive objects
spin around each other
and finally collide.
http://www.npr.org/sections/thetwo-way/2017/10/16/
557557544/astronomers-strike-gravitational-gold-in-colliding-neutron-stars
http://www.npr.org/sections/thetwo-way/2017/10/16/
557557544/astronomers-strike-gravitational-gold-in-colliding-neutron-stars
11 February 2016
Gravitational waves:
discovery hailed
as breakthrough of
the century
Scientists
announce discovery
of clear gravitational wave signal,
ripples in spacetime
first predicted
by Albert Einstein
https://www.theguardian.com/science/2016/feb/11/
gravitational-waves-discovery-hailed-as-breakthrough-of-the-century
(...)
Albert Einstein
used his newly discovered
general theory of relativity
(which implies
that space itself
responds to
the presence of
matter
by curving, expanding
or contracting)
to demonstrate
that each time
we wave our hands around
or move any matter,
disturbances
in the fabric of space
propagate out
at the speed of light,
as waves travel outward
when a rock is thrown
into a lake.
As these gravitational waves
traverse space
they will literally cause
distances between objects
alternately to decrease
and increase
in an oscillatory manner.
http://www.nytimes.com/2016/02/14/opinion/sunday/finding-beauty-in-the-darkness.html
http://www.npr.org/sections/thetwo-way/2017/10/16/
557557544/astronomers-strike-gravitational-gold-in-colliding-neutron-stars
https://www.theguardian.com/science/2017/oct/03/
a-new-way-to-study-our-universe-
what-gravitational-waves-mean-for-future-science-nobel-physics
http://www.npr.org/sections/thetwo-way/2017/10/03/
555279770/2017-physics-nobel-prize-honors-work-on-gravitational-waves-3-americans-win
http://www.npr.org/sections/13.7/2017/10/03/
555320681/nobel-winners-work-in-physics-began-with-albert-einstein
http://www.npr.org/2016/08/17/
487923755/how-to-catch-the-biggest-wave-in-the-universe
http://www.npr.org/sections/thetwo-way/2016/06/15/
481934630/gravitational-waves-from-colliding-black-holes-shake-scientists-detectors-again
https://www.youtube.com/
watch?v=z7pKXVkcDzs -
NYT - 23 February 2016
http://www.npr.org/sections/thetwo-way/2016/02/12/
466559439/einstein-a-hunch-and-decades-of-work-
how-scientists-found-gravitational-waves
http://www.nytimes.com/2016/02/12/
science/ligo-gravitational-waves-black-holes-einstein.html
http://www.npr.org/sections/thetwo-way/2016/02/11/
466286219/in-milestone-scientists-detect-waves-in-space-time-as-black-holes-collide
http://www.npr.org/sections/13.7/2016/02/11/
466372736/growing-old-with-einstein-the-long-wait-for-detection-of-gravitational-waves
http://www.bbc.co.uk/programmes/p03j72qb - 11 February 2016
https://www.theguardian.com/science/2016/feb/11/
gravitational-waves-science-thrilled-by-discovery-ripples-in-space-time
https://www.theguardian.com/science/2016/feb/11/
gravitational-waves-discovery-hailed-as-breakthrough-of-the-century
https://www.theguardian.com/science/2016/feb/09/
gravitational-waves-everything-you-need-to-know
https://www.theguardian.com/science/video/2016/feb/11/
gravitational-waves-discovery-changes-everything-video
http://www.theguardian.com/commentisfree/2015/dec/07/
einstein-universe-gravitational-waves-theory-relativity
http://www.nytimes.com/interactive/2015/11/24/
science/what-is-einsteins-general-relativity.html
2014
Gravitational waves
http://www.theguardian.com/science/2014/mar/23/
primordial-gravitational-waves-tantalising-cosmic-birth-big-bang
http://www.theguardian.com/science/2014/mar/17/
gravitational-waves-bicep-inflation-big-bang
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