Why can't anything go faster than the speed of light?

Page 5 of 11 [ 162 posts ]  Go to page Previous  1, 2, 3, 4, 5, 6, 7, 8 ... 11  Next

eric76
Veteran
Veteran

User avatar

Joined: 31 Aug 2012
Gender: Male
Posts: 10,660
Location: In the heart of the dust bowl

11 Dec 2015, 11:22 am

frenchmanflats wrote:
eric76 wrote:
Good luck finding a wormhole that is sufficiently stable and large enough for any use to be made of it.



I believe that an advanced civilization somewhere in our galaxy or other galaxies have developed and uses wormholes. Maybe they are visiting here today, observing our progress. To an advanced civilization we are a bacillus. There might be civilizations that can manipulate space and time. This is true of going through hidden dimensions. Remember, the Milky Way galaxy is 14 billion years old. Enough time for advanced civilizations to grow


It makes for great science fiction.

As for the longest possible age of a civilization, there could be no civilizations even existing in the first generation of stars. There were very few elements available for them to be made from initially. Many of the atoms from which we are made were either manufactured inside a star or in the supernova of a dying star. For example, even the simplest carbon based life-form could probably not have formed until the universe was at least three or four billions years old. Seven or eight billion years old would be more likely.

As for creating worm holes, it would be amazing if the most advanced possible civilization could create worm holes of any meaningful size in either spatial dimensions or in the time dimension.

It's strictly science fiction.



DentArthurDent
Veteran
Veteran

User avatar

Joined: 26 Jul 2008
Age: 61
Gender: Male
Posts: 3,884
Location: Victoria, Australia

11 Dec 2015, 4:42 pm

xile123 wrote:
The speed of light should really be called the speed of space, imo .


It has nothing to do with space rather C is more correctly defined as "the speed of massless particles in a vacuum". Which are forced to travel at this velocity as a result of not having any mass.


_________________
"I'd take the awe of understanding over the awe of ignorance anyday"
Douglas Adams

"Religion is the impotence of the human mind to deal with occurrences it cannot understand" Karl Marx


frenchmanflats
Veteran
Veteran

Joined: 5 Oct 2015
Age: 51
Posts: 1,052
Location: California

11 Dec 2015, 5:06 pm

eric76 wrote:
frenchmanflats wrote:
eric76 wrote:
Good luck finding a wormhole that is sufficiently stable and large enough for any use to be made of it.



I believe that an advanced civilization somewhere in our galaxy or other galaxies have developed and uses wormholes. Maybe they are visiting here today, observing our progress. To an advanced civilization we are a bacillus. There might be civilizations that can manipulate space and time. This is true of going through hidden dimensions. Remember, the Milky Way galaxy is 14 billion years old. Enough time for advanced civilizations to grow


It makes for great science fiction.

As for the longest possible age of a civilization, there could be no civilizations even existing in the first generation of stars. There were very few elements available for them to be made from initially. Many of the atoms from which we are made were either manufactured inside a star or in the supernova of a dying star. For example, even the simplest carbon based life-form could probably not have formed until the universe was at least three or four billions years old. Seven or eight billion years old would be more likely.

As for creating worm holes, it would be amazing if the most advanced possible civilization could create worm holes of any meaningful size in either spatial dimensions or in the time dimension.

It's strictly science fiction.


People like Carl Sagan has said its a possibility that advanced forms of life exists in the Universe.



Edenthiel
Veteran
Veteran

User avatar

Joined: 12 Sep 2014
Age: 58
Gender: Female
Posts: 2,820
Location: S.F Bay Area

11 Dec 2015, 6:05 pm

frenchmanflats wrote:
People like Carl Sagan has said its a possibility that advanced forms of life exists in the Universe.


And that was based on a Drake's equation decades before we had any idea how many exoplanets might really exist. So while the chances are the same, our calculations have suddenly become far more optimistic. :)

However as far as we are aware, the known laws of physics that in aggregate *are* our universe by definition must apply everywhere. They may be wrong, they may need adjustment, there may be places where they are...bent but that's due to a lack of knowledge on our part. Several things we hold in exceedingly high confidence however, such as the max speed. Sure, somewhere out there may be a civilization that's been around for tens of millions of years. And their understanding - and ability to manipulate - how our universe works may be vastly advanced. But the chance of them finding us at this moment in our history are exceedingly slim, enough so that we shouldn't wait for them.


_________________
“For small creatures such as we the vastness is bearable only through love.”
―Carl Sagan


eric76
Veteran
Veteran

User avatar

Joined: 31 Aug 2012
Gender: Male
Posts: 10,660
Location: In the heart of the dust bowl

11 Dec 2015, 7:22 pm

frenchmanflats wrote:
eric76 wrote:
frenchmanflats wrote:
eric76 wrote:
Good luck finding a wormhole that is sufficiently stable and large enough for any use to be made of it.



I believe that an advanced civilization somewhere in our galaxy or other galaxies have developed and uses wormholes. Maybe they are visiting here today, observing our progress. To an advanced civilization we are a bacillus. There might be civilizations that can manipulate space and time. This is true of going through hidden dimensions. Remember, the Milky Way galaxy is 14 billion years old. Enough time for advanced civilizations to grow


It makes for great science fiction.

As for the longest possible age of a civilization, there could be no civilizations even existing in the first generation of stars. There were very few elements available for them to be made from initially. Many of the atoms from which we are made were either manufactured inside a star or in the supernova of a dying star. For example, even the simplest carbon based life-form could probably not have formed until the universe was at least three or four billions years old. Seven or eight billion years old would be more likely.

As for creating worm holes, it would be amazing if the most advanced possible civilization could create worm holes of any meaningful size in either spatial dimensions or in the time dimension.

It's strictly science fiction.


People like Carl Sagan has said its a possibility that advanced forms of life exists in the Universe.


Sure. But did he say that they can do the impossible?



Spiderpig
Veteran
Veteran

User avatar

Joined: 14 Apr 2013
Gender: Male
Posts: 7,893

12 Dec 2015, 12:37 pm

This thread is a testament to how many annoying conundrums and fruitless mental struggles Humanity could save if nerds like Albert Einstein were routinely bullied out of any inclination for science before they could make a career on it and dictate whimsical things like nothing can travel faster than light :jester:


_________________
The red lake has been forgotten. A dust devil stuns you long enough to shroud forever those last shards of wisdom. The breeze rocking this forlorn wasteland whispers in your ears, “Não resta mais que uma sombra”.


frenchmanflats
Veteran
Veteran

Joined: 5 Oct 2015
Age: 51
Posts: 1,052
Location: California

14 Dec 2015, 4:37 am

Spiderpig wrote:
This thread is a testament to how many annoying conundrums and fruitless mental struggles Humanity could save if nerds like Albert Einstein were routinely bullied out of any inclination for science before they could make a career on it and dictate whimsical things like nothing can travel faster than light :jester:


There are things that we still do not understand in the Universe. Maybe 100 years from now, in the year 2115, we would have a different understanding of the Universe physical laws. We still do not know what new physical laws might come up. Some may be invalidated. It is lighting a match in a dark room. We can't see what wonders or terrors await us in deep space. Remember 110 years ago, the technology was rather primitive. We were still using the horse and buggy.



Spiderpig
Veteran
Veteran

User avatar

Joined: 14 Apr 2013
Gender: Male
Posts: 7,893

14 Dec 2015, 7:22 am

And yet a lot of people would say that technological level was quite enough, thank you very much :)


_________________
The red lake has been forgotten. A dust devil stuns you long enough to shroud forever those last shards of wisdom. The breeze rocking this forlorn wasteland whispers in your ears, “Não resta mais que uma sombra”.


Kyle Katarn
Veteran
Veteran

User avatar

Joined: 13 Dec 2015
Age: 31
Posts: 1,181

14 Dec 2015, 7:23 am

Spiderpig wrote:
This thread is a testament to how many annoying conundrums and fruitless mental struggles Humanity could save if nerds like Albert Einstein were routinely bullied out of any inclination for science before they could make a career on it and dictate whimsical things like nothing can travel faster than light :jester:

Are you serious?



frenchmanflats
Veteran
Veteran

Joined: 5 Oct 2015
Age: 51
Posts: 1,052
Location: California

14 Dec 2015, 10:18 pm

Spiderpig wrote:
And yet a lot of people would say that technological level was quite enough, thank you very much :)


I believe by the year 2050 or 2060 we would have the ability to travel out of our solar system. If you are into conspiracies, some people think that we have the technology.



michael517
Veteran
Veteran

User avatar

Joined: 3 Nov 2013
Age: 63
Gender: Female
Posts: 535
Location: Illinois

15 Dec 2015, 2:28 pm

One day I got my spaceship going 0.99c (relative to Earth), turned on my Maglite and pointed it outside the window, and I'll be damned the light still came out at 1.00c. Sure confused the heck out of me.

/s



frenchmanflats
Veteran
Veteran

Joined: 5 Oct 2015
Age: 51
Posts: 1,052
Location: California

15 Dec 2015, 2:55 pm

michael517 wrote:
One day I got my spaceship going 0.99c (relative to Earth), turned on my Maglite and pointed it outside the window, and I'll be damned the light still came out at 1.00c. Sure confused the heck out of me.

/s

Technology in the future may us allow to surpass that.



slenkar
Veteran
Veteran

User avatar

Joined: 25 Apr 2014
Gender: Male
Posts: 1,146
Location: here

15 Dec 2015, 3:13 pm

One possibility is that empty space is composed of small units or cells.
Light can occupy one of these units at a time.

This would allow a light source to be seen from every possible direction.

https://van.physics.illinois.edu/qa/lis ... s-light-go

Quote:
As a wave travels from a source, it propagates outward in all directions.


In a universe where empty space is merely empty space there would be an infinite number of directions so it would not be possible to detect light from every possible direction.

The speed limit of light could be explained by the fact that one unit of light takes a certain amount of time to transfer itself from one cell of 'empty space' to another.

Time dilation also fits into this model nicely, each cell of empty space makes time go forward for each atom or unit of light it contains,
so these cells only do 2 things,
1 move energy or mass from itself to a neighbouring cell, and
2 make time go forward for the thing it contains.

The faster something travels, the more time slows down because each cell can only devote enough processing power to each of its 2 tasks.
So we are living in a computer simulation.



Last edited by slenkar on 15 Dec 2015, 5:36 pm, edited 1 time in total.

naturalplastic
Veteran
Veteran

User avatar

Joined: 26 Aug 2010
Age: 71
Gender: Male
Posts: 35,189
Location: temperate zone

15 Dec 2015, 4:32 pm

michael517 wrote:
One day I got my spaceship going 0.99c (relative to Earth), turned on my Maglite and pointed it outside the window, and I'll be damned the light still came out at 1.00c. Sure confused the heck out of me.

/s


What about the head lights? Did you turn the head lights on?



naturalplastic
Veteran
Veteran

User avatar

Joined: 26 Aug 2010
Age: 71
Gender: Male
Posts: 35,189
Location: temperate zone

15 Dec 2015, 4:55 pm

frenchmanflats wrote:
michael517 wrote:
One day I got my spaceship going 0.99c (relative to Earth), turned on my Maglite and pointed it outside the window, and I'll be damned the light still came out at 1.00c. Sure confused the heck out of me.

/s

Technology in the future may us allow to surpass that.


Not the lifetime of anyone alive today. Wont even be equaled in that time.



Edenthiel
Veteran
Veteran

User avatar

Joined: 12 Sep 2014
Age: 58
Gender: Female
Posts: 2,820
Location: S.F Bay Area

15 Dec 2015, 6:32 pm

frenchmanflats wrote:
Spiderpig wrote:
This thread is a testament to how many annoying conundrums and fruitless mental struggles Humanity could save if nerds like Albert Einstein were routinely bullied out of any inclination for science before they could make a career on it and dictate whimsical things like nothing can travel faster than light :jester:


There are things that we still do not understand in the Universe. Maybe 100 years from now, in the year 2115, we would have a different understanding of the Universe physical laws. We still do not know what new physical laws might come up. Some may be invalidated. It is lighting a match in a dark room. We can't see what wonders or terrors await us in deep space. Remember 110 years ago, the technology was rather primitive. We were still using the horse and buggy.


The pedant in me wants to point out that 110 years ago we were doing 75+ mph & could cross the USA in 3.5-4.0 days. We also were floating about in both lighter and heavier than air craft.

While such an upheaval as you describe might happen a century or five from now, the basic tenets of science require us to grant such wild suppositions the same truth and validity as any other possible future event that has no proof or indication of probability to back it. In other words, it is literally equal in possibility to pigs flying that we may discover how to move faster than light. Note that I'm not saying we won't someday *travel* a distance and get there sooner than light starting at the same instant from an outside time frame...


_________________
“For small creatures such as we the vastness is bearable only through love.”
―Carl Sagan