Published On Nov 2, 2019
In 2017, a Nobelprize was awarded for the direct detection of gravitational waves, as predicted by Einstein's theory of General Relativity. But really we are still no sure that the events are indeed of astrophysical origin and not misidentified noise that originates on Earth.
In this video I tell you what gravitational waves are, how to measurement (directly and indirectly), what the problem is with the existing direct detection, what's the matter with LIGO's Nobelprize winning figure, and what's with the glitches.
References:
* Better climate predictions
https://www.nytimes.com/2019/06/12/op...
https://www.extremeearth.eu/
* Articles I have written recently about LIGO
In English
http://backreaction.blogspot.com/2019...
In German
https://www.heise.de/newsticker/meldu...
* How can LIGO detect signals?
https://arxiv.org/abs/gr-qc/0702079
https://arxiv.org/abs/gr-qc/0511083
* Plot was made by eye quotes:
https://www.newscientist.com/article/...
* List of LIGO/Virgo run 3 alerts and retractions
https://gracedb.ligo.org/superevents/...