How Accurate Is CERN's Science Rap Video?

  • Thread starter Mammo
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In summary, the YouTube rap video from CERN is very informative and also contains a small inconsistency.
  • #1
Mammo
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I've only just seen this YouTube rap video from CERN. I think it's absolutely brilliant, being wonderfully informative as well. I couldn't help myself from noticing a tiny inconsistency though. (Sorry for being such a boff)

Gravity was known to humans long before the present-day picture of four fundamental interactions was formed. The nature of gravity is fundamental to our understanding of our solar system, the galaxy and the structure and evolution of the Universe. It was Newton who first understood that gravity not only dictates the fall of apples and all bodies on Earth, but also planetary motion in our solar system and the sun itself are govern by the same physical principles. On the larger scales the effects of gravity are even more pronounced, guiding the evolution of the galaxies, galactic clusters and ultimately determining the fate of the Universe. Presently the Einstein’s general theory of relativity is a key to the understanding a wide range of phenomena, spanning from the dynamics of compact astrophysical objects such as neutron stars and black holes, to cosmology, where the Universe itself is the object of study. Its striking predictions include gravitational lensing and waves, and only black holes have not yet been directly confirmed.

Source: 2006 paper General Theory of Relativity: Will it survive the next decade?
 
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  • #2
So, gravity waves have been directly confirmed? That is news to me, as well.I've been following LIGO, but haven't checked in lately. Last I heard, there were still no definitive results.
 
  • #3
LURCH said:
So, gravity waves have been directly confirmed? That is news to me, as well.I've been following LIGO, but haven't checked in lately. Last I heard, there were still no definitive results.


So have I actually. Laser Inteferometer Gravitational wave Observatory. There are two facilities built, each having state of the art mirror/laser/lense technology with shock abosorbing components so only gravity waves are measured (through the distortion of space-time).

I had no idea gravity waves have been detected. Thats pretty interesting news!
 
  • #4
  • #5
I like the rap!
 
  • #6
qwerty2x said:
I like the rap!
It's great isn't it.
 
Last edited:

Related to How Accurate Is CERN's Science Rap Video?

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