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nice1
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Rotating mass bends space and time
#14940771 - 08/18/11 03:40 AM (12 years, 8 months ago) |
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According to Einstein
but light can also do this?
So if we rotate light we can bend space and time?
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the human abstract
malaka the werewolf


Registered: 11/30/09
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Re: Rotating mass bends space and time [Re: nice1]
#14940774 - 08/18/11 03:43 AM (12 years, 8 months ago) |
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this makes me really
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iliketripping
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Registered: 07/23/11
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Re: Rotating mass bends space and time [Re: nice1]
#14940787 - 08/18/11 03:51 AM (12 years, 8 months ago) |
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I'd say no because light has no mass.
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the human abstract
malaka the werewolf


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Re: Rotating mass bends space and time [Re: iliketripping]
#14940796 - 08/18/11 03:54 AM (12 years, 8 months ago) |
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Can you even define light??
I mean, I need a light right now actually. so I don't think anyone can
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wildernessjunkie
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Re: Rotating mass bends space and time [Re: iliketripping]
#14940864 - 08/18/11 04:36 AM (12 years, 8 months ago) |
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Quote:
iliketripping said: I'd say no because light has no mass.
Seems to me that I remember reading about how the gravity of a black hole is so great, that even light cannot escape it. Seems like if gravity has an effect on it, that it must have SOME mass, no matter how minute.
Then again.....maybe Im talking out of my ass.
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El Douche
El Douchius Maximus


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Quote:
wildernessjunkie said:
Quote:
iliketripping said: I'd say no because light has no mass.
Seems to me that I remember reading about how the gravity of a black hole is so great, that even light cannot escape it. Seems like if gravity has an effect on it, that it must have SOME mass, no matter how minute.
Then again.....maybe Im talking out of my ass.
I agree that it should have mass because it cannot escape a black hole's gravity.
Plus, since light acts like a wave and a particle, the particle must have some form and mass.
E=MC^2 suggest that light/energy and mater are interconvertable. Mass can be converted into light and light can be converted into mass.
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Noteworthy
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Re: Rotating mass bends space and time [Re: El Douche]
#14940911 - 08/18/11 04:58 AM (12 years, 8 months ago) |
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If light has no mass, then it moves at the speed of light.. if it has mass, then it moves slower than the speed of light
things dont need mass to be stuck in a black hole, because the black hole stretches space time so greatly that there are so few paths out of the black hole, that much light will simply be stuck in the black hole, not becuase it is being drawn in by gravity, but because only a very specific trajectory will lead it out of the black hole
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iliketripping
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Registered: 07/23/11
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Re: Rotating mass bends space and time [Re: El Douche]
#14940922 - 08/18/11 05:09 AM (12 years, 8 months ago) |
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Quote:
El Douche said:
Quote:
wildernessjunkie said:
Quote:
iliketripping said: I'd say no because light has no mass.
Seems to me that I remember reading about how the gravity of a black hole is so great, that even light cannot escape it. Seems like if gravity has an effect on it, that it must have SOME mass, no matter how minute.
Then again.....maybe Im talking out of my ass.
I agree that it should have mass because it cannot escape a black hole's gravity.
Plus, since light acts like a wave and a particle, the particle must have some form and mass.
E=MC^2 suggest that light/energy and mater are interconvertable. Mass can be converted into light and light can be converted into mass.
You are talking about relativistic mass with that Einstein stuff but a photon is a massless particle.
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Visionary Tools



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Re: Rotating mass bends space and time [Re: nice1] 1
#14941106 - 08/18/11 06:50 AM (12 years, 8 months ago) |
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Yes, rotation, gravity, inertia are all linked together. Why do electrons orbit around nucleons, why do planets orbit stars, stars orbit galaxies?
Probably explains why all those flying saucer films show the UFO's rotating around and around.
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Noteworthy
Sophyphile


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heres a bit of a riddle:
how does something stand still while moving continuously?
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iliketripping
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Re: Rotating mass bends space and time [Re: Noteworthy]
#14941133 - 08/18/11 07:04 AM (12 years, 8 months ago) |
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Quote:
Noteworthy said: heres a bit of a riddle:
how does something stand still while moving continuously?
Time, traveling at the speed of light?
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Tien
人民英雄




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Re: Rotating mass bends space and time [Re: iliketripping]
#14941684 - 08/18/11 10:17 AM (12 years, 8 months ago) |
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Quote:
iliketripping said: I'd say no because light has no mass.
What is the mass of time?
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DieCommie

Registered: 12/11/03
Posts: 29,258
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Re: Rotating mass bends space and time [Re: nice1]
#14941984 - 08/18/11 11:40 AM (12 years, 8 months ago) |
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Quote:
nice1 said: According to Einstein
but light can also do this?
So if we rotate light we can bend space and time? 
I cant think of what "rotating light" means. ?? Light travels along more or less straight lines (or geodesics with respect to relativity). Light does have energy/momentum so it does affect spacetime and gravity, but "rotating light" doesnt make any sense to me.
The wikipedia on 'Frame Dragging' has an interesting line;
Quote:
More generally, the subject of effects caused by mass-energy currents is known as gravitomagnetism, in analogy with Maxwellian electromagnetism.
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Noteworthy
Sophyphile


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Re: Rotating mass bends space and time [Re: iliketripping]
#14942239 - 08/18/11 12:26 PM (12 years, 8 months ago) |
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Quote:
iliketripping said:
Quote:
Noteworthy said: heres a bit of a riddle:
how does something stand still while moving continuously?
Time, traveling at the speed of light?
i guess so..
te correct answer is however
by spinning
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pickeroo
Mycological Journeyman

Registered: 06/01/11
Posts: 377
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Quote:
Visionary Tools said: Yes, rotation, gravity, inertia are all linked together. Why do electrons orbit around nucleons, why do planets orbit stars, stars orbit galaxies?
Probably explains why all those flying saucer films show the UFO's rotating around and around.
Electrons don't orbit the nucleus due to gravity, it's the charges on them.
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nice1
Not the droid your looking for



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Re: Rotating mass bends space and time [Re: DieCommie]
#14942657 - 08/18/11 01:46 PM (12 years, 8 months ago) |
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Physically, in a fibre optic cable made in a circle.
Ya get me?
We rotate that shit and it bends space and time.
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pickeroo
Mycological Journeyman

Registered: 06/01/11
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Re: Rotating mass bends space and time [Re: nice1]
#14942847 - 08/18/11 02:27 PM (12 years, 8 months ago) |
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Quote:
nice1 said: Physically, in a fibre optic cable made in a circle.
Ya get me?
We rotate that shit and it bends space and time.
That's not rotation, that's moving forward in a curved line.
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DieCommie

Registered: 12/11/03
Posts: 29,258
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Re: Rotating mass bends space and time [Re: nice1]
#14942888 - 08/18/11 02:35 PM (12 years, 8 months ago) |
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Quote:
nice1 said: Physically, in a fibre optic cable made in a circle.
Ya get me?
We rotate that shit and it bends space and time.
Fibre Optics use 'total internal reflection' which means that the light travels in many small steps of straight lines, rather than a smooth arc.
In any case, light bends space time as it is (by virtue of its contribution to the energy density).
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nice1
Not the droid your looking for



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Re: Rotating mass bends space and time [Re: DieCommie]
#14943083 - 08/18/11 03:06 PM (12 years, 8 months ago) |
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I'm all up in your space bending your timez
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RebeccaBlack
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Re: Rotating mass bends space and time [Re: Noteworthy]
#14943106 - 08/18/11 03:10 PM (12 years, 8 months ago) |
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Quote:
Noteworthy said: heres a bit of a riddle:
how does something stand still while moving continuously?
Rotation
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DieCommie

Registered: 12/11/03
Posts: 29,258
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Re: Rotating mass bends space and time [Re: RebeccaBlack]
#14943134 - 08/18/11 03:14 PM (12 years, 8 months ago) |
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Quote:
Daijo said:
Quote:
Noteworthy said: heres a bit of a riddle:
how does something stand still while moving continuously?
Rotation
That must be an odd definition of standing still then...
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Visionary Tools



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Re: Rotating mass bends space and time [Re: pickeroo]
#14943229 - 08/18/11 03:38 PM (12 years, 8 months ago) |
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Quote:
pickeroo said:
Quote:
Visionary Tools said: Yes, rotation, gravity, inertia are all linked together. Why do electrons orbit around nucleons, why do planets orbit stars, stars orbit galaxies?
Probably explains why all those flying saucer films show the UFO's rotating around and around.
Electrons don't orbit the nucleus due to gravity, it's the charges on them.
Mmm, and I'm not sure if they spin altogether. They still orbit around the nucleons.
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DieCommie

Registered: 12/11/03
Posts: 29,258
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Quote:
Visionary Tools said: Mmm, and I'm not sure if they spin altogether.
They dont spin (verb) but they have spin (noun). That is, they have an intrinsic angular momentum but they dont twist around.
Quote:
They still orbit around the nucleons.
They may or may not, each state is possible IIRC.
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Noteworthy
Sophyphile


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Re: Rotating mass bends space and time [Re: DieCommie]
#14944547 - 08/18/11 09:00 PM (12 years, 8 months ago) |
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Quote:
DieCommie said:
Quote:
Daijo said:
Quote:
Noteworthy said: heres a bit of a riddle:
how does something stand still while moving continuously?
Rotation
That must be an odd definition of standing still then...
yeah but you know, its a riddle.
the idea is that by rotating, the physical components of a system can be in constant motion while the system as a whole is not moving on the whole with respect to some other system
its a nice little basic trait of our universe, all stable things occur because instability is channeled into some sort of loop whereby it gets back to where it started.
either when planets move around the sun
electrons around a nucleus (might be a bit different but probably a similar idea, at least mathematically)
or the way that nutrients cycle in an ecosystem
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Idiot
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Re: Rotating mass bends space and time [Re: Tien] 1
#14945060 - 08/18/11 11:13 PM (12 years, 8 months ago) |
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Quote:
Tien said:
Quote:
iliketripping said: I'd say no because light has no mass.
What is the mass of time?

What time is mass?

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johnm214


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Re: Rotating mass bends space and time [Re: nice1]
#14945272 - 08/18/11 11:13 PM (12 years, 8 months ago) |
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This thread has been closed.
Reason: Question answered and thread diverging into philosophical/absurdest discussion of no apparent scientific/technological relevance. If additional on topic discussion on this topic is desired, feel free to make another thread.
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