Gravity wave announcement live now.

Hi

The announcement t regarding gravity waves is taking place noe. Follow the live link below.

I will edit the OP as the announcement goes on

link

a reply to: InMyShell


Thanks, forgot about the live broadcast.
Tuned in now

a reply to: InMyShell

The link works, but the video runs like a crippled slug.

I shall have to hunt down an alternative video link.

I'm currently in a lecture so I cannot watch the live feed. Can anyone give me a brief synopsis of what the announcement entails?

Here is the live feed on YouTube

originally posted by: MuldersGirl
I'm currently in a lecture so I cannot watch the live feed. Can anyone give me a brief synopsis of what the announcement entails?

I just started listening but so far it sounds like the theory is two black holes colliding creating these waves.

a reply to: MuldersGirl

" Ladies and Gentlemen , we have detected gravitation waves !" , that's how the conference started.
The waves detected were produced by two black holes circling each other then merging over 1 billion years ago , the total power output from the collision was 50 times the power of all the stars in the universe but very brief.

They then went on to explain how LIGO is constructed and how it detects the waves , very technical and utterly brilliant.

Wow the collision was literally .20 seconds and was 50x greater than all the stars power in the Universe. Not sure how they know this but it sounds cool.

a reply to: HawkeyeNation

Wow the collision was literally .20 seconds and was 50x greater than all the stars power in the Universe. Not sure how they know this but it sounds cool.

How could they possibly know? It's all best guess work.

Some simpler details from the link in OP…

LIGO is designed to detect gravitational waves by measuring their effect using two L-shaped detectors about 3,200 kilometres apart. Passing gravitational waves are expected to make light take slightly longer to travel in one direction than the other. To us, that make it looks like a decrease in the length of one arm of the L and an increase in the other. The minuscule change is measured using lasers and mirrors. A real gravitational wave should be detected by both detectors.

The slower light wave front from one side than the other is a measure of the delay of light induced by gravity form the collision of two 'stars'.

How does this measure gravity? Don't we already see the 'lensing' effect gravity has on some light reaching us from remote objects? For example…

image

a reply to: InMyShell

Wooohoooo!

Now, I have never been much of a fan of jumping in the sea, but this makes me want to learn to surf! It was only a matter of time (and space) before we figured out how to observe these waves, but now that we have, there are shivers down my spine and my palms are getting clammy. This is but one riser on the stairway to the stars, but it will be instrumental in our future understanding of the way gravity operates.

I am utterly thrilled by this. Fantastic work!

Albert was right.


Again.

Einstein is a legend 🍺

truly fascinating stuff.

Einstein predicted these waves could be created from something such as 2 neutron stars colliding.

2 black holes.. I can't imagine. I would love to be like Matthew McConohay's character (however you spell it) in Interstellar so I could witness it first hand (without getting shredded/compressed into the tiniest microscopic corpse)


This is just mind boggling. Thanks to all the members adding info from the feed, not working on my comp

originally posted by: intrptr

Some simpler details from the link in OP…

LIGO is designed to detect gravitational waves by measuring their effect using two L-shaped detectors about 3,200 kilometres apart. Passing gravitational waves are expected to make light take slightly longer to travel in one direction than the other. To us, that make it looks like a decrease in the length of one arm of the L and an increase in the other. The minuscule change is measured using lasers and mirrors. A real gravitational wave should be detected by both detectors.

The slower light wave front from one side than the other is a measure of the delay of light induced by gravity form the collision of two 'stars'.

How does this measure gravity? Don't we already see the 'lensing' effect gravity has on some light reaching us from remote objects? For example…

So it not only proves the existence of gravity waves but also that the speed of light CAN be slowed, which in turn means logically that it can be increased also. So does this mean that FTL transport is possible ?

If not then what does this discovery actually bring to the table for science and technology ?

Oh my. This is stunning news. I actually god goosebumps reading the announcement in the paper . Incredible to be still proving Einstein right after all this time.

Man, mnemeth1/anarchocapitalist is NOT goin to be happy. Can't wait to see what he comes up with now.

This is science at its best. Well done to the whole team that made this discovery and built that astonishing detector .

originally posted by: donktheclown
a reply to: HawkeyeNation

Wow the collision was literally .20 seconds and was 50x greater than all the stars power in the Universe. Not sure how they know this but it sounds cool.

How could they possibly know? It's all best guess work.

"Know"? I'm not sure. I'm not sure if even they would claim they "know" 100% of anything concerning the detection of these waves yet. However, they can certainly do the science in order to determine that it way be likely that their description of where the waves emanated could be accurate.

So is it a "guess"? Sure. However, it is a carefully thought-out, corroborated, debugged, reviewed, and highly educated guess.

They have been working for 6 months since the detection in September to attempt to confirm this detection and to establish information on some of the details of the detection.

a reply to: Discotech

So it not only proves the existence of gravity waves but also that the speed of light CAN be slowed,

No. It proves that gravity changes the shape of space.
Light isn't slowed, the distance it travels gets longer.

originally posted by: gortex
The waves detected were produced by two black holes circling each other then merging over 1 billion years ago , the total power output from the collision was 50 times the power of all the stars in the universe but very brief.

HOLY CRAP! That's an amazing amount of energy released.

originally posted by: Phage
a reply to: Discotech

So it not only proves the existence of gravity waves but also that the speed of light CAN be slowed,

No. It proves that gravity changes the shape of space.
Light isn't slowed, the distance it travels gets longer.

Or shorter