Dense Matters

[Ryusei the Morning Star]

http://www.cnn.com/2016/02/11/us/gravitational-waves-feat/

 

 

The gravitational waves -- ripples in space-time -- were created by the merging of two black holes, Reitze said. One black hole had the mass of 29 suns; the other was the equivalent of 36 suns. Each was perhaps 50 kilometers (30 miles) in diameter.

 

More than a billion years ago -- LIGO estimates about 1.3 billion -- the two collided at half the speed of light. Gravitational waves pass through everything, so the result traveled through the universe for that time before reaching Earth.

 

Just over 100 years after he published his general theory of relativity, scientists have found what Albert Einstein predicted as part of the theory: gravitational waves.

 

G-Waves, unlike light, can pass through theoretically everything (any type of matter), so it's sorta like the X-rays of the universe since it let's use see things that we might not be able to see through light 

[Dad]

Apparently this can give us MAJOR insight into the Big Bang.  There could be so many advancement opportunities in science with this.  I'm hype af.

[Progenitor]

G-Waves, unlike light, can pass through theoretically everything (any type of matter), so it's sorta like the X-rays of the universe since it let's use see things that we might not be able to see through light 

 

Nah, X-Rays are Radiation.  It's much more relatable to a Sonic Boom underwater.  The wave doesn't really pass through everything, because everything flows in tandem with it.  So, in a weird backwards kinda way, everything actually flows through IT, in the sense the all matter conforms to the shape of the ripple as it passes.

 

One might think that should have torn the fabric of the universe to shreds and killed us all.  And you'd be right.  If we were right next to it.  But we were 1.3 billion light years away.  Pretty sure the wave had a fairly reasonable amount of time to become so spaced out over such a large area that it's actual "ripple strength" was very very weak.

[Ryusei the Morning Star]

Nah, X-Rays are Radiation.  It's much more relatable to a Sonic Boom underwater.  The wave doesn't really pass through everything, because everything flows in tandem with it.  So, in a weird backwards kinda way, everything actually flows through IT, in the sense the all matter conforms to the shape of the ripple as it passes.

 

One might think that should have torn the fabric of the universe to shreds and killed us all.  And you'd be right.  If we were right next to it.  But we were 1.3 billion light years away.  Pretty sure the wave had a fairly reasonable amount of time to become so spaced out over such a large area that it's actual "ripple strength" was very very weak.

Should have elaborated, I mean like take an X-ray of me, and the things that visible light might not be able to see are clear

 

But now G-Waves can do that to things that EM radiation in general cannot? 

[Progenitor]

Apparently this can give us MAJOR insight into the Big Bang.  There could be so many advancement opportunities in science with this.  I'm hype af.

 

It goes bigger than that.  It's like a fish that suddenly realizes what it swims through is made of and how it works.  the fact that gravity can ripple through 3 dimensional space as a wave now being...well...a fact means we can learn how it works, why it works, and potentially how to control it to some degree.  The 4 fundamental forces of the Universe are so incredibly mysterious that we had to make a group for the stuff that we knew existed and was super figgin important but had no idea what the funk was going on.  Understanding one of those 4 forces is a gigantic step towards the future.

[ÆƵ–]

So what you're saying is hoverboards, actual hoverboards, can happen now?

[Progenitor]

So what you're saying is hoverboards, actual hoverboards, can happen now?

 

no.  Scifi hoverboards most likely act of electromagnetic interactions, rather than manipulating the force of gravity around it.  Otherwise it would lift a chunk of the ground up to the board and ackomplish nothing.

 

 

But now G-Waves can do that to things that EM radiation in general cannot? 

 

Yes, because it's not a "wave" as in a moving particle (aka Radiation), but a "wave" in the literal sense of the word ripple.  If you imagine the fabric of space and time as a viscous liquid, then these two black holes had enough gravity to do stuff and release a force strong enough to send ripples through this fluid.  As you might expect, a ripple gets weaker as it travels radially from the source.

 

But it still carries the force of the impact on that shock wave.  I would not want to be any of the planets that were within a few lightyears of that collision, cuz no doubt they got hit HARD by that ripple.  Have you seen what we used to measure it?  It's literally a devise that measures irregularities in space-time.  The ripple was able to make objects in this world Bend and or stretch very very slightly from 1.3 billion lightyears away.  it had enough force to manipulate the universe around us at one of it's weakest points before dispersing.  It's inconceivable how much force it carried on initial impact.  EM waves dont have force.  They're dangerous because of how radioactive decay affects other molecules.

[~~~~]

Sheesh this is really annoying. We need some evidence that either Einstein's General Theory of Relativity AND/OR the Standard Model are false, not more evidence confirming them.

[Raine]

I'm a late physics major who works with a research professor on this s***. While the hype is real, it's really not going to be that huge at least until we find either 1) a BETTER way to detect them for measurement use or 2) someway to make use of them considering how nearly infinitesimally small they are. 

 

For 1, it's important to note just how small these gravity waves considering the massive events that create them. Researchers used Interferometer, which is a device that splits light, essentially with very precise lenses, and fires them off 4 km in 90 degree angle apart from each other in vacuumed cylinders, bounces them back with a mirror and when they arrive close to where they started they produce destructive interference because of how perfectly they're aligned. This means that the light which wavelength is a fraction of the width of an atom lines up the inverse way to the other light beam producing no light as they interfere. The gravity waves hit the 4 km long tubes and changed the distance between the source and the mirrors at the end just enough, aka fractions of the width of an atom, so the interference when they got back was slightly off and a light detector found light.

 

These gravity waves are freaking tiny, and they require massive devices to detect. It's not going to reveal any truths of the universe just yet. The biggest thing we got from this is that Einstein was pretty correct on the matter so we have some damning evidence AGAIN that his theory of relativity was on the nose. 

[Ryusei the Morning Star]

no.  Scifi hoverboards most likely act of electromagnetic interactions, rather than manipulating the force of gravity around it.  Otherwise it would lift a chunk of the ground up to the board and ackomplish nothing.

 

 

 

Yes, because it's not a "wave" as in a moving particle (aka Radiation), but a "wave" in the literal sense of the word ripple.  If you imagine the fabric of space and time as a viscous liquid, then these two black holes had enough gravity to do stuff and release a force strong enough to send ripples through this fluid.  As you might expect, a ripple gets weaker as it travels radially from the source.

 

But it still carries the force of the impact on that shock wave.  I would not want to be any of the planets that were within a few lightyears of that collision, cuz no doubt they got hit HARD by that ripple.  Have you seen what we used to measure it?  It's literally a devise that measures irregularities in space-time.  The ripple was able to make objects in this world Bend and or stretch very very slightly from 1.3 billion lightyears away.  it had enough force to manipulate the universe around us at one of it's weakest points before dispersing.  It's inconceivable how much force it carried on initial impact.  EM waves dont have force.  They're dangerous because of how radioactive decay affects other molecules.

I've always been confused why Relativistic mass won't factor into force. Light would have energy and thus relativistic mass as long as it's in motion right?

[Progenitor]

I've always been confused why Relativistic mass won't factor into force. Light would have energy and thus relativistic mass as long as it's in motion right?

 

oh no, it totally does have force.  But you have to understand that Relativistic Mass * Acceleration =/= Force.  Instead Relativistic Mass * Acceleration == Relativistic Force.  The mechanics of Relativistic thinking state that any body off non zero mass will NEVER reach the speed of light.  Therefore, mass vs. absolute speed can be represented as an e^(-x) function.  The faster the particle moves, the less mass it must have, up until our asymptote which we have labeled the Speed of Light.

 

So what you are actually doing is taking the Limit of the Mass of the object as it's Speed -> Speed of Light.  Once you reach the speed of light however, or get extremely close to it, mass -> 0 and speed -> c.  Since speed is approaching a constant, acceleration actually becomes zero once speed of light is reached.  Therefore you have an insignificant, theoretical mass * an insignificant, theoretical acceleration which must == an insignificant, theoretical force.

 

That's why we ignore the force produced by particles moving at the speed of light.  They cannot further accelerate, or if they can the displacement is incredibly small, and their mass is negligible, which ultimately means the resulting force is multiplicatively as negligible as it's factors.

[Arimetal]

So what you're saying is hoverboards, actual hoverboards, can happen now?

I thought Google X stated that a hover board could be theoretically made and that they were thinking about building it until deciding it was too much money to produce for too little of benefit? I could be wrong.

[Simping For Hina]

I thought Google X stated that a hover board could be theoretically made and that they were thinking about building it until deciding it was too much money to produce for too little of benefit? I could be wrong.

Dude, don't be so dense.

[Progenitor]

Dude, don't be so dense.

 

We actually DO have the technology.  I don't remember it's name but we have developed a relatively commercially available type of superconductor that, when super-chilled, produces an incredibly powerful magnetic field.  So powerful that it can remain completely suspended without disruption several centimeters off of the repelling magnet.  Not only that, but you can orient and move the conductor at will, so long as it remains within the source magnet's area of effect.  You can do some really cooky stuff with it.  While it might not be practice for a consumer available hover board, that technology can very much so be made.  All you need is a magnet source that moves with the board, a super-cooling system (usually liquid nitrogen or helium), and the board interior made mostly of this superconductor.  It's just very, very expensive to do so, especially when you consider that you will have to regularly replace the cooling fluid after and/or before every use, in addition to the cost of production.  However the Bullet Train system in Japan and in particular the new models being used in China all function on this principle, so why not a board?

[Simping For Hina]

We actually DO have the technology.  I don't remember it's name but we have developed a relatively commercially available type of superconductor that, when super-chilled, produces an incredibly powerful magnetic field.  So powerful that it can remain completely suspended without disruption several centimeters off of the repelling magnet.  Not only that, but you can orient and move the conductor at will, so long as it remains within the source magnet's area of effect.  You can do some really cooky stuff with it.  While it might not be practice for a consumer available hover board, that technology can very much so be made.  All you need is a magnet source that moves with the board, a super-cooling system (usually liquid nitrogen or helium), and the board interior made mostly of this superconductor.  It's just very, very expensive to do so, especially when you consider that you will have to regularly replace the cooling fluid after and/or before every use, in addition to the cost of production.  However the Bullet Train system in Japan and in particular the new models being used in China all function on this principle, so why not a board?

I feel like I shouldn't make a joke here. The joke goes over your head, and probably many others. I'll see myself out.

[Progenitor]

I feel like I shouldn't make a joke here. The joke goes over your head, and probably many others. I'll see myself out.

 

I actually facedesked at how hard I missed that.

[Simping For Hina]

I actually facedesked at how hard I missed that.

Feel a little dense, do yeah?

[Tentacruel]

I still don't get it.

[Ryusei the Morning Star]

I still don't get it.

Black Holes

Dense Matters

Literally Rippling Fabric of space