Speed of light

[John 1720]

There is an absolluute time in the sense that everybody would measure the age of the universe to be 13.8 billion years.

Actually time is a physical property and is relativistic. There was no such thing as time before the universe began. Time compression is also a fact and your GPS algorithms would be totally messed up without them. Not sure what you mean by absolute time since it's a physical property called space-time and mutable.

 

[toLiJC]

Nobody can slow down the speed of light, except by passing it through something like glass or water, anymore than they can tweak gravity to whatever value they want it.

do you think that there are no angels that could accelerate or slow down the speed of light?!

Blessings

 

[timewerx]

Nor slow down? Even infinitesimally?

It has been done using Bose-Einstein Condensates.

 

[timewerx]

The point is when they go to measure the speed of light they do not get consistent measurements. Warp speed on star trek was not light traveling faster it was people traveling faster than the speed of light and this in now known not to be possible. Time stops at the speed of light.
If you go faster then light that will increase the decay rate accordingly so you have a very high price to pay for braking the speed limit of light.

The principle of "Frame Dragging" or Lense-Thirring Effect would cause space to "slide" past one another as you approach the speed of light.

It would allow you to go faster than the speed of light without any negative consequences because you've not actually reached the speed of light in your local space time.....This principle would allow travel to very distant places a lot faster than the time an ordinary beam of light would take.

 

[ViaCrucis]

The other day my husband was trying to remember the formula for working out something like velocity or acceleration over a certain distance at so many miles per hour (or something like that) re a particular motor-bike.

Anyhow, it made me wonder about the speed of light. My question is, is the speed of light constant, or does it accelerate.
For example when light comes from the sun, as it is 'ejected' so to speak, does it gather speed until it reaches a constant?
Also when light hits something and maybe is absorbed or rebounds somewhat, does that slow it down?

Sorry, I'm sure this is a very simplistic question and absolutely shows my lack of knowledge of these things...I'm not even posing the question in the right terms, probably, but I hope you understand what I'm querying.

The speed of light is a constant (in a vacuum), which is known as c. Light can be slowed down, for example light travels slower through gas or liquids. But nothing can move faster than c. The universal constant is the speed of light moving through a vacuum.

-CryptoLutheran

 

[ViaCrucis]

Question: If you were driving your motor vehicle at the speed of light and you turned your headlights on, would they work?

No. If one could, for example, take your automobile to the speed of light it would require infinite energy and would then exist at all points in the universe simultaneously--in other words, it can't be done. And because c, no the speed of light can never exceed c.

-CryptoLutheran

 

[Armoured]

If time was an illusion, it wuldn't have an existence outside of your brain, and it wouuldn't havee aany hard and fast properties, such as being a one way streett.

You need to read more Pratchet

 

[lesliedellow]

do you think that there are no angels that could accelerate or slow down the speed of light?!

Blessings

Not unless they are going to mess with the other physical constants which determine its speed, and it would be extremely bad news for us if they did.

 

[FrumiousBandersnatch]

...But nothing can move faster than c.

That's not strictly true; nothing can accelerate to c, and massless particles must travel at c in a vacuum, but the relativity theory permits particles that travel faster than c, and which can't decelerate to c - these theoretical particles are called tachyons. However, if they existed, and if we could detect them, there would be serious problems for causality...

 

[lesliedellow]

Actually time is a physical property and is relativistic. There was no such thing as time before the universe began. Time compression is also a fact and your GPS algorithms would be totally messed up without them. Not sure what you mean by absolute time since it's a physical property called space-time and mutable.

Time is only relative for observers in different frames of reference. If the universe itself is the frame of reference, everybody is in it, and time dilation is irrelevant.

 

[timewerx]

What is this, a trick question? I should think that if I were driving my car at the speed of light, I and the car would be annihilated

There are some situations that would allow you to exceed the speed of light without drama.

If you could actually get a car up to the speed of light, it would exceed the speed of light....There are other physical effects at work like "Lense-Thirring Effect" and "Frame Dragging", not just Relativity.

Light may not exceed the speed of light entirely on its own but matter like car is a different entity. It is matter which has mass that can displace space locally. At speeds close to the speed of light the effect becomes significant and would allow faster-than-light speeds.

Older NASA warp drive concepts are based upon it. But their means is impossible in application. I have more practical solutions but that's for another time.

 

[Larniavc]

Nor slow down? Even infinitesimally?

The speed of light is constant in a given medium.

In a Bose-Einstein condensate that speed is a little over walking speed but in each medium it is constant.

 

[John 1720]

Time is only relative for observers in different frames of reference. If the universe itself is the frame of reference, everybody is in it, and time dilation is irrelevant.

Alas which observer is correct? We measure time by our relativistic observation but who are we to make our point of view absolute? Time is a physical property therefore time is mutable as is every physical thing. The Bible had this right as well when it said a thousand years is as a single day or a watch in the night for a particular observer.
Psalms 90:4
2 Peter 3:8
Matthew 14:25
Luke 12:38

 

[joshua 1 9]

The principle of "Frame Dragging" or Lense-Thirring Effect would cause space to "slide" past one another as you approach the speed of light.

It would allow you to go faster than the speed of light without any negative consequences because you've not actually reached the speed of light in your local space time.....This principle would allow travel to very distant places a lot faster than the time an ordinary beam of light would take.

Nova recently had a program called: "The Origami REvolution" where they are taking the ancient Japanese art of Origami and turning it into a science. The theory here is that the Universe does not expand or inflate so much as the Universe Unfolds from 2 dimensional to multidimensional. This explains worm holes and how we can go from one area of the universe to another very rapidly. Even a 10 or 12 dimensional universe converges on a single point in time and space. My son had a video on youtube that demonstrates this.

The Nova program actually talks about quite a few different areas of study. For example proteins are known to unfold. DNA unfolds. With the art of Origami we can begin to use computer software with algorithms to make predictions. One study they are working on is the creation of a protein that can be used to render most virus ineffective. So far the research on mice has shown this protein to be effective and now they are beginning to do work on humans to see if they get the same results that they got with the mice. The protein is like a key that attaches to the virus to effectively turn it off so that it does not reproduce itself. It could be that we have finally found the cure for the common cold.

The Origami Revolution — NOVA | PBS

 

[TagliatelliMonster]

Question: If you were driving your motor vehicle at the speed of light and you turned your headlights on, would they work?

Well, you wouldn't actually be able to travel at the speed of light...

But allowing that can happen for a second: Yes. And from your perspective, the light coming from your headlights would still "move away" from you at the speed of light.

 

[timewerx]

Nova recently had a program called: "The Origami REvolution" where they are taking the ancient Japanese art of Origami and turning it into a science. The theory here is that the Universe does not expand or inflate so much as the Universe Unfolds from 2 dimensional to multidimensional. This explains worm holes and how we can go from one area of the universe to another very rapidly. Even a 10 or 12 dimensional universe converges on a single point in time and space. My son had a video on youtube that demonstrates this.

The Nova program actually talks about quite a few different areas of study. For example proteins are known to unfold. DNA unfolds. With the art of Origami we can begin to use computer software with algorithms to make predictions. One study they are working on is the creation of a protein that can be used to render most virus ineffective. So far the research on mice has shown this protein to be effective and now they are beginning to do work on humans to see if they get the same results that they got with the mice. The protein is like a key that attaches to the virus to effectively turn it off so that it does not reproduce itself. It could be that we have finally found the cure for the common cold.

The Origami Revolution — NOVA | PBS

I have heard this for a very long time. The problem is always "how".

I'm conducting a scientific research that may give us that "how" but it's premature atm. Some experiments have shown possible effects of warping space-time using nothing but suppressed electric fields. Maybe in a couple of years we might have answer.

 

[John 1720]

Nova recently had a program called: "The Origami REvolution" where they are taking the ancient Japanese art of Origami and turning it into a science. The theory here is that the Universe does not expand or inflate so much as the Universe Unfolds from 2 dimensional to multidimensional. This explains worm holes and how we can go from one area of the universe to another very rapidly. Even a 10 or 12 dimensional universe converges on a single point in time and space. My son had a video on youtube that demonstrates this.

The Nova program actually talks about quite a few different areas of study. For example proteins are known to unfold. DNA unfolds. With the art of Origami we can begin to use computer software with algorithms to make predictions. One study they are working on is the creation of a protein that can be used to render most virus ineffective. So far the research on mice has shown this protein to be effective and now they are beginning to do work on humans to see if they get the same results that they got with the mice. The protein is like a key that attaches to the virus to effectively turn it off so that it does not reproduce itself. It could be that we have finally found the cure for the common cold.

The Origami Revolution — NOVA | PBS

Don't understand how that would explain the well documented visible red shift - Galaxies moving away from us. Wouldn't that ignore the doppler effect we have been able to detect. New and imaginative theories shouldn't ignore the evidences that have already been established. Rule #1 don't throw the baby out with the bath water.

 

[lesliedellow]

Alas which observer is correct? We measure time by our relativistic observation but who are we to make our point of view absolute? Time is a physical property therefore time is mutable as is every physical thing. The Bible had this right as well when it said a thousand years is as a single day or a watch in the night for a particular observer.
Psalms 90:4
2 Peter 3:8
Matthew 14:25
Luke 12:38

The universe has been expanding at the same rate for everybody ever since the big bang. Therefore everybody will measure its age to be 13.8 billion years. The logical thing would be to regard a clock moving with a frame of reference as giving the correct time, and if anybody else thinks that our clock is slower than theirs, that is their problem.

 

[joshua 1 9]

The universe has been expanding at the same rate for everybody ever since the big bang.

Some people believe that the universe is expanding at an accelerating rate.

The logical thing would be to regard a clock moving with a frame of reference as giving the correct time

From time to time there is some wobble when the planets get to close to each other in their orbit. They have had to adjust the atomic clock 27 times so far.

The Future of Leap Seconds

 

[joshua 1 9]

Don't understand how that would explain the well documented visible red shift - Galaxies moving away from us. Wouldn't that ignore the doppler effect we have been able to detect. New and imaginative theories shouldn't ignore the evidences that have already been established. Rule #1 don't throw the baby out with the bath water.

Light is a particle and a wave. The origami theory would explain how the particles maintain their relationship with each other. Redshift deals with light as a wave.