• 120 results
  • 1
  • 2
  • 3
#1 Posted by Vrakmul (23849 posts) - - Show Bio

If the big bang is how it began, then how will it end.

#2 Posted by The_Martian (36984 posts) - - Show Bio

The universe falls apart on itself and then empowers me with the Power Cosmic so that in the newly created universe I can become the Devourer of Worlds.

#3 Posted by Vrakmul (23849 posts) - - Show Bio

Nobody says:

"The universe falls apart on itself and then empowers me with the Power Cosmic so that in the newly created universe I can become the Devourer of Worlds."

I believe that it will die of heat death. Eventually all matter, including black holes, die, leaving only the miniscule photon left.
Post Edited:2007-10-27 21:34:19

#4 Posted by Apparition (11349 posts) - - Show Bio

entropy

#5 Posted by Sparda (15795 posts) - - Show Bio

Another bigger bang happens, living nothing.

Endgame.

#6 Posted by Jake Malcom (3261 posts) - - Show Bio

Dreadnaught says:

"If the big bang is how it began, then how will it end. "

short version

were f@#ked

#7 Posted by Vrakmul (23849 posts) - - Show Bio

Maybe a wandering Incredibly massive black hole enters our universe and eats everything in it, game over.

#8 Posted by Rotten gun (2509 posts) - - Show Bio

the universe is made up of oppostites or polarity... day/night male/female good/bad etc. think of the universe as breathing... at the moment it is in its "in breath" (expanding and growing larger) eventually it will reach its peak and will need to be released the "out breath" (contracting and diminishing)

#9 Posted by Donnieman v5.1 (44323 posts) - - Show Bio

Apparition says:

"entropy"

good one

#10 Posted by Apparition (11349 posts) - - Show Bio

i dont just talk to my friends when i'm at school ;)

#11 Posted by Vrakmul (23849 posts) - - Show Bio

Maybe the universe will freeze to death.

#12 Posted by Donnieman v5.1 (44323 posts) - - Show Bio

Apparition says:

"i dont just talk to my friends when i'm at school ;)"

lol

#13 Posted by Vrakmul (23849 posts) - - Show Bio

Apparition says:

"i dont just talk to my friends when i'm at school ;)"

Hahaha lol.

#14 Posted by Legendary Bio Vishanti (3333 posts) - - Show Bio

the universe collapses under its own weight causing a massive black hole that sucks in galaxies by galxies, getting bigger and then that collapses under its own weight causing us to be millions of times smaller then an atom. (P.S if the creators of the sight i got that from are on here, i have permission to use it)

#15 Posted by Vrakmul (23849 posts) - - Show Bio

Legendary Bio Vishanti says:

"the universe collapses under its own weight causing a massive black hole that sucks in galaxies by galxies, getting bigger and then that collapses under its own weight causing us to be millions of times smaller then an atom. (P.S if the creators of the sight i got that from are on here, i have permission to use it)"

That is quite likely. But what I want to see is methos' say on this.

#16 Posted by Eternal Chaos (22990 posts) - - Show Bio

Here's what happens.

The Big Bang started the Universe right? The Small Stillness ends the Universe.

#17 Posted by crazy spidey (3489 posts) - - Show Bio

nothing will destroy the whole universe, maybe galaxies but never the universe in its entirety. If it does get destroyed its destruction will bring a second unvierse

#18 Posted by Vrakmul (23849 posts) - - Show Bio

Eternal Chaos says:

"Here's what happens.The Big Bang started the Universe right? The Small Stillness ends the Universe."

Oh Roflmao!!

#19 Posted by Eternal Chaos (22990 posts) - - Show Bio

Dreadnaught says:

"Eternal Chaos says:
"Here's what happens. The Big Bang started the Universe right? The Small Stillness ends the Universe."
Oh Roflmao!! "

Lol. I'm glad somebody finally got that joke.

#20 Posted by Travveler (120 posts) - - Show Bio

Big Crunch.

#21 Posted by Vrakmul (23849 posts) - - Show Bio

The heat death is a possible final state of the universe, in which it has "run down" to a state of no thermodynamic free energy to sustain motion or life. In physical terms, it has reached maximum entropy. The hypothesis of a universal heat death stems from the 1850s ideas of William Thomson (Lord Kelvin) who extrapolated the theory of heat views of mechanical energy loss in nature, as embodied in the first two laws of thermodynamics, to universal operation.

Contents

[hide]

* 1 Origins of the idea      o 1.1 History* 2 Temperature of the universe* 3 Current status* 4 Timeline for heat death      o 4.1 The Degenerate Age - from 1014 to 1040 years            + 4.1.1 Galaxy and star formation ceases: 1014 years            + 4.1.2 Planets fall or are flung from orbits: 1015 years            + 4.1.3 Stars fall or are flung from orbits: 1016 years            + 4.1.4 An estimated half of protons decay: 1036 years            + 4.1.5 All protons decay: 1040 years      o 4.2 The Black Hole Age - from 1040 years to 10100 years            + 4.2.1 Black holes dominate: 1040 years            + 4.2.2 Black holes disintegrate: 10100 years* 5 Ultimate fate      o 5.1 The Dark Age - from 10100 years until 10150 years      o 5.2 The Photon Age - 10150 years and Beyond* 6 See also* 7 References* 8 External links

[edit] Origins of the idea

The idea of heat death stems from the second law of thermodynamics, which states that entropy tends to increase in an isolated system. If the universe lasts for a sufficient time, it will asymptotically approach a state where all energy is evenly distributed. In other words, in nature there is a tendency to the dissipation (energy loss) of mechanical energy (motion); hence, by extrapolation, there exists the view that the mechanical movement of the universe will run down in time due to the second law. The idea of heat death was first proposed in loose terms beginning in 1851 by William Thomson, who theorized further on the mechanical energy loss views of Sadi Carnot (1824), James Joule (1843), and Rudolf Clausius (1850). Thomson’s views were then elaborated on more definitively over the next decade by Hermann von Helmholtz and William Rankine.

[edit] History

The idea of heat death of the universe derives from discussion of the application of the first two laws of thermodynamics to universal processes. Specifically, in 1851 William Thomson outlined the view, as based on recent experiments on the dynamical theory of heat, that “heat is not a substance, but a dynamical form of mechanical effect, we perceive that there must be an equivalence between mechanical work and heat, as between cause and effect.” [1]

William Thomson (Lord Kelvin) - originated the idea of universal heat death in 1852.

William Thomson (Lord Kelvin) - originated the idea of universal heat death in 1852.

In 1852, Thomson published his “On a Universal Tendency in Nature to the Dissipation of Mechanical Energy” in which he outlined the rudiments of the second law of thermodynamics summarized by the view that mechanical motion and the energy used to create that motion will tend to dissipate or run down, naturally.[2] The ideas in this paper, in relation to their application to the age of the sun and the dynamics of the universal operation, attracted the likes of William Rankine and Hermann von Helmholtz. The three of them were said to have exchanged ideas on this subject.[3] In 1862, Thomson published the article “On the age of the sun’s heat” in which he reiterated his fundamental beliefs in the indestructibility of energy (the first law) and the universal dissipation of energy (the second law), leading to diffusion of heat, cessation of motion, and exhaustion of potential energy through the material universe while clarifying his view of the consequences for the universe as a whole. The key paragraph is:[4]

“ The result would inevitably be a state of universal rest and death, if the universe were finite and left to obey existing laws. But it is impossible to conceive a limit to the extent of matter in the universe; and therefore science points rather to an endless progress, through an endless space, of action involving the transformation of potential energy into palpable motion and hence into heat, than to a single finite mechanism, running down like a clock, and stopping for ever. ”

In the years to follow both Thomson’s 1852 and the 1862 papers, Helmholtz and Rankine both credited Thomson with the idea, but read further into his papers by publishing views stating that Thomson argued that the universe will end in a “heat death” (Helmholtz) which will be the “end of all physical phenomena” (Rankine).[3][5]

[edit] Temperature of the universe

In a "heat death", the temperature of the entire universe would be very close to absolute zero. Heat death is, however, not quite the same as "cold death", or the "Big Freeze", in which the universe simply becomes too cold to sustain life due to continued expansion, though the result is quite similar.[6]

[edit] Current status

Inflationary cosmology suggests that in the early universe, before cosmic expansion, energy was uniformly distributed[7], and thus the universe was in a state superficially similar to heat death. However, the two states are in fact very different: in the early universe, gravity was a very important force, and in a gravitational system, if energy is uniformly distributed, entropy is quite low, compared to a state in which most matter has collapsed into black holes. Thus, such a state is not in thermal equilibrium, and in fact there is no thermal equilibrium for such a system, as it is thermodynamically unstable.[8][9] However, in the heat death scenario, the energy density is so low that the system can be thought of as non-gravitational, such that a state in which energy is uniformly distributed is a thermal equilibrium state, i.e., the state of maximal entropy.

The final state of the universe depends on the assumptions made about its ultimate fate, and these assumptions have varied considerably over the late 20th century and early 21st century. In a "closed" universe that undergoes recollapse, a heat death is expected to occur, with the universe approaching arbitrarily high temperature and maximal entropy as the end of the collapse approaches. In an "open" or "flat" universe that continues expanding indefinitely, a heat death is also expected to occur, with the universe cooling to approach absolute zero temperature and approaching a state of maximal entropy over a very long time period. There is dispute over whether or not an expanding universe can approach maximal entropy; it has been proposed that in an expanding universe, the value of maximum entropy increases faster than the universe gains entropy, causing the universe to move progressively farther away from heat death.[citation needed] Finally, some models of dark energy cause the universe to expand in ways that result in some amount of usable energy always being available, preventing the universe from ever reaching a state of maximum entropy.[citation needed] The expectation of the scientific community as of 2007 is that the universe will continue expanding indefinitely.[citation needed]

The fate of sapient life in a universe approaching heat death is speculative, and again depends on the assumptions made. It has been proposed that in a collapsing universe, there is enough usable energy to perform an arbitrarily large amount of computation before the collapse completes. This scenario is called the Omega point, and it would theoretically allow a society that practices mind uploading to experience an arbitrarily large amount of subjective time in simulated realities. In an expanding universe, it has been proposed that some mechanism would exist to allow sapient life to continue processing information indefinitely. This proposal is called the final anthropic principle. However, the expectation among the majority of scientists is that the heat death of the universe will bring an end to the ability to perform information processing, and hence an end to any form of sapient life.[citation needed]

[edit] Timeline for heat death

This is an asteroid, one of the last survivors in a dying Universe. In reality it's unlikely the object would be illuminated by a surviving star and would probably be immersed in darkness during this Age.

This is an asteroid, one of the last survivors in a dying Universe. In reality it's unlikely the object would be illuminated by a surviving star and would probably be immersed in darkness during this Age.

[edit] The Degenerate Age - from 1014 to 1040 years

[edit] Galaxy and star formation ceases: 1014 years

Stellar formation stops, leaving matter to decay over a very long period of time. The hydrogen fuel used for fusion by stars will be eventually depleted, leaving all matter in the Universe in a compact state populated by the following objects after all stars burn out:

* Planets and planetoids (this category includes asteroids, comets, brown dwarfs, etc.)* White dwarfs* Black dwarfs* Neutron stars* Quark stars* Black Holes

Formerly luminous bodies like stars cool and dim, eventually reaching the same temperature as the Universe's microwave background radiation. Occasionally, brown dwarfs collide with each other and form a new red dwarf star which will survive for billions of years, which is the only visible light source in the universe.

[edit] Planets fall or are flung from orbits: 1015 years

Over time, the orbits of planets decay due to gravitational radiation or the planets are ejected from their local systems by gravitational perturbations.

[edit] Stars fall or are flung from orbits: 1016 years

The same scattering effect happens to stars and their remnants within galaxies, leaving mostly scattered stellar debris and supermassive black holes.

The mighty supermassive black holes are all that remains of galaxies once all protons decay, but even these giants are not immortal.

The mighty supermassive black holes are all that remains of galaxies once all protons decay, but even these giants are not immortal.

[edit] An estimated half of protons decay: 1036 years

If estimates of the half-life of protons are correct, then one-half of all the free-floating matter in the Universe has been converted into gamma radiation and leptons through proton decay.

[edit] All protons decay: 1040 years

If estimates on the half-life of protons (1036 years) are correct, then protons (and nucleonic neutrons as well) will undergo roughly 10,000 half-lives by the time the universe is 1040 years-old. To put this into perspective, there are an estimated 1080 protons currently in the Universe. This means the proton's numbers will be slashed in half 10,000 times by the time it is 1040 years-old. Hence, there will be roughly ½10,000 (approximately 5 × 10–3011) as many protons remaining as there are today; that is, zero protons remaining in the Universe at the end of the Degenerate Age. Effectively, all matter would be contained in the only bodies in the Universe immune to proton decay: black holes.

Note: This number is based on loose estimates as the exact value for the half-life of protons is an unknown quantity with only a known lower-bound. The end of the Degenerate Era is meant to mark the end of baryonic matter's influence on the Universe, so the estimate for how long this era will last may change if and when the exact value for proton decay is pinned down. The specific numerical values are not meant to be taken literally, and are provided only for demonstration purposes.

[edit] The Black Hole Age - from 1040 years to 10100 years

[edit] Black holes dominate: 1040 years

Black holes continue to evaporate via Hawking radiation, but this process is very slow.

[edit] Black holes disintegrate: 10100 years

Few if any black holes remain; virtually all matter is now converted into photons.

See also 1019 seconds for times further than 317 billion years into the future.

[edit] Ultimate fate

The lowly photon is now king of the Universe as the last of the supermassive black holes evaporate.

The lowly photon is now king of the Universe as the last of the supermassive black holes evaporate.

[edit] The Dark Age - from 10100 years until 10150 years

All Black Holes now Disintegrated: 10150 years

The remaining black holes evaporate: first the small ones, and then the supermassive black holes. All matter that used to make up the stars and galaxies has now degenerated into photons and leptons.

[edit] The Photon Age - 10150 years and Beyond

The Universe Achieves Low-Energy State: 1010³ years and beyond

The Universe now reaches an extremely low-energy state. What happens after this is speculative. It's possible a Big Rip event may occur far off into the future, or the Universe may settle into this state forever, achieving true heat death. Extreme low-energy states imply that localized quantum events become major macroscopic phenomena rather than negligible microscopic events because the smallest perturbations make the biggest difference in this era, so there is no telling what may happen to space or time. It is perceived that the laws of "macro-physics" will break down, and the laws of "quantum-physics" will prevail.

That's heat death from wiki. It's a accurate idea of how heat death works, The universe itself won't die, but all matter will fall apart.

#22 Posted by Travveler (120 posts) - - Show Bio

Dreadnaught says:

"The heat death is a possible final state of the universe, in which it has "run down" to a state of no thermodynamic free energy to sustain motion or life. In physical terms, it has reached maximum entropy. The hypothesis of a universal heat death stems from the 1850s ideas of William Thomson (Lord Kelvin) who extrapolated the theory of heat views of mechanical energy loss in nature, as embodied in the first two laws of thermodynamics, to universal operation. Contents [hide] * 1 Origins of the idea o 1.1 History * 2 Temperature of the universe * 3 Current status * 4 Timeline for heat death o 4.1 The Degenerate Age - from 1014 to 1040 years + 4.1.1 Galaxy and star formation ceases: 1014 years + 4.1.2 Planets fall or are flung from orbits: 1015 years + 4.1.3 Stars fall or are flung from orbits: 1016 years + 4.1.4 An estimated half of protons decay: 1036 years + 4.1.5 All protons decay: 1040 years o 4.2 The Black Hole Age - from 1040 years to 10100 years + 4.2.1 Black holes dominate: 1040 years + 4.2.2 Black holes disintegrate: 10100 years * 5 Ultimate fate o 5.1 The Dark Age - from 10100 years until 10150 years o 5.2 The Photon Age - 10150 years and Beyond * 6 See also * 7 References * 8 External links [edit] Origins of the idea The idea of heat death stems from the second law of thermodynamics, which states that entropy tends to increase in an isolated system. If the universe lasts for a sufficient time, it will asymptotically approach a state where all energy is evenly distributed. In other words, in nature there is a tendency to the dissipation (energy loss) of mechanical energy (motion); hence, by extrapolation, there exists the view that the mechanical movement of the universe will run down in time due to the second law. The idea of heat death was first proposed in loose terms beginning in 1851 by William Thomson, who theorized further on the mechanical energy loss views of Sadi Carnot (1824), James Joule (1843), and Rudolf Clausius (1850). Thomson’s views were then elaborated on more definitively over the next decade by Hermann von Helmholtz and William Rankine. [edit] History The idea of heat death of the universe derives from discussion of the application of the first two laws of thermodynamics to universal processes. Specifically, in 1851 William Thomson outlined the view, as based on recent experiments on the dynamical theory of heat, that “heat is not a substance, but a dynamical form of mechanical effect, we perceive that there must be an equivalence between mechanical work and heat, as between cause and effect.” [1] William Thomson (Lord Kelvin) - originated the idea of universal heat death in 1852. William Thomson (Lord Kelvin) - originated the idea of universal heat death in 1852. In 1852, Thomson published his “On a Universal Tendency in Nature to the Dissipation of Mechanical Energy” in which he outlined the rudiments of the second law of thermodynamics summarized by the view that mechanical motion and the energy used to create that motion will tend to dissipate or run down, naturally.[2] The ideas in this paper, in relation to their application to the age of the sun and the dynamics of the universal operation, attracted the likes of William Rankine and Hermann von Helmholtz. The three of them were said to have exchanged ideas on this subject.[3] In 1862, Thomson published the article “On the age of the sun’s heat” in which he reiterated his fundamental beliefs in the indestructibility of energy (the first law) and the universal dissipation of energy (the second law), leading to diffusion of heat, cessation of motion, and exhaustion of potential energy through the material universe while clarifying his view of the consequences for the universe as a whole. The key paragraph is:[4] “ The result would inevitably be a state of universal rest and death, if the universe were finite and left to obey existing laws. But it is impossible to conceive a limit to the extent of matter in the universe; and therefore science points rather to an endless progress, through an endless space, of action involving the transformation of potential energy into palpable motion and hence into heat, than to a single finite mechanism, running down like a clock, and stopping for ever. ” In the years to follow both Thomson’s 1852 and the 1862 papers, Helmholtz and Rankine both credited Thomson with the idea, but read further into his papers by publishing views stating that Thomson argued that the universe will end in a “heat death” (Helmholtz) which will be the “end of all physical phenomena” (Rankine).[3][5] [edit] Temperature of the universe In a "heat death", the temperature of the entire universe would be very close to absolute zero. Heat death is, however, not quite the same as "cold death", or the "Big Freeze", in which the universe simply becomes too cold to sustain life due to continued expansion, though the result is quite similar.[6] [edit] Current status Inflationary cosmology suggests that in the early universe, before cosmic expansion, energy was uniformly distributed[7], and thus the universe was in a state superficially similar to heat death. However, the two states are in fact very different: in the early universe, gravity was a very important force, and in a gravitational system, if energy is uniformly distributed, entropy is quite low, compared to a state in which most matter has collapsed into black holes. Thus, such a state is not in thermal equilibrium, and in fact there is no thermal equilibrium for such a system, as it is thermodynamically unstable.[8][9] However, in the heat death scenario, the energy density is so low that the system can be thought of as non-gravitational, such that a state in which energy is uniformly distributed is a thermal equilibrium state, i.e., the state of maximal entropy. The final state of the universe depends on the assumptions made about its ultimate fate, and these assumptions have varied considerably over the late 20th century and early 21st century. In a "closed" universe that undergoes recollapse, a heat death is expected to occur, with the universe approaching arbitrarily high temperature and maximal entropy as the end of the collapse approaches. In an "open" or "flat" universe that continues expanding indefinitely, a heat death is also expected to occur, with the universe cooling to approach absolute zero temperature and approaching a state of maximal entropy over a very long time period. There is dispute over whether or not an expanding universe can approach maximal entropy; it has been proposed that in an expanding universe, the value of maximum entropy increases faster than the universe gains entropy, causing the universe to move progressively farther away from heat death.[citation needed] Finally, some models of dark energy cause the universe to expand in ways that result in some amount of usable energy always being available, preventing the universe from ever reaching a state of maximum entropy.[citation needed] The expectation of the scientific community as of 2007 is that the universe will continue expanding indefinitely.[citation needed] The fate of sapient life in a universe approaching heat death is speculative, and again depends on the assumptions made. It has been proposed that in a collapsing universe, there is enough usable energy to perform an arbitrarily large amount of computation before the collapse completes. This scenario is called the Omega point, and it would theoretically allow a society that practices mind uploading to experience an arbitrarily large amount of subjective time in simulated realities. In an expanding universe, it has been proposed that some mechanism would exist to allow sapient life to continue processing information indefinitely. This proposal is called the final anthropic principle. However, the expectation among the majority of scientists is that the heat death of the universe will bring an end to the ability to perform information processing, and hence an end to any form of sapient life.[citation needed] [edit] Timeline for heat death This is an asteroid, one of the last survivors in a dying Universe. In reality it's unlikely the object would be illuminated by a surviving star and would probably be immersed in darkness during this Age. This is an asteroid, one of the last survivors in a dying Universe. In reality it's unlikely the object would be illuminated by a surviving star and would probably be immersed in darkness during this Age. [edit] The Degenerate Age - from 1014 to 1040 years [edit] Galaxy and star formation ceases: 1014 years Stellar formation stops, leaving matter to decay over a very long period of time. The hydrogen fuel used for fusion by stars will be eventually depleted, leaving all matter in the Universe in a compact state populated by the following objects after all stars burn out: * Planets and planetoids (this category includes asteroids, comets, brown dwarfs, etc.) * White dwarfs * Black dwarfs * Neutron stars * Quark stars * Black Holes Formerly luminous bodies like stars cool and dim, eventually reaching the same temperature as the Universe's microwave background radiation. Occasionally, brown dwarfs collide with each other and form a new red dwarf star which will survive for billions of years, which is the only visible light source in the universe. [edit] Planets fall or are flung from orbits: 1015 years Over time, the orbits of planets decay due to gravitational radiation or the planets are ejected from their local systems by gravitational perturbations. [edit] Stars fall or are flung from orbits: 1016 years The same scattering effect happens to stars and their remnants within galaxies, leaving mostly scattered stellar debris and supermassive black holes. The mighty supermassive black holes are all that remains of galaxies once all protons decay, but even these giants are not immortal. The mighty supermassive black holes are all that remains of galaxies once all protons decay, but even these giants are not immortal. [edit] An estimated half of protons decay: 1036 years If estimates of the half-life of protons are correct, then one-half of all the free-floating matter in the Universe has been converted into gamma radiation and leptons through proton decay. [edit] All protons decay: 1040 years If estimates on the half-life of protons (1036 years) are correct, then protons (and nucleonic neutrons as well) will undergo roughly 10,000 half-lives by the time the universe is 1040 years-old. To put this into perspective, there are an estimated 1080 protons currently in the Universe. This means the proton's numbers will be slashed in half 10,000 times by the time it is 1040 years-old. Hence, there will be roughly ½10,000 (approximately 5 × 10–3011) as many protons remaining as there are today; that is, zero protons remaining in the Universe at the end of the Degenerate Age. Effectively, all matter would be contained in the only bodies in the Universe immune to proton decay: black holes. Note: This number is based on loose estimates as the exact value for the half-life of protons is an unknown quantity with only a known lower-bound. The end of the Degenerate Era is meant to mark the end of baryonic matter's influence on the Universe, so the estimate for how long this era will last may change if and when the exact value for proton decay is pinned down. The specific numerical values are not meant to be taken literally, and are provided only for demonstration purposes. [edit] The Black Hole Age - from 1040 years to 10100 years [edit] Black holes dominate: 1040 years Black holes continue to evaporate via Hawking radiation, but this process is very slow. [edit] Black holes disintegrate: 10100 years Few if any black holes remain; virtually all matter is now converted into photons. See also 1019 seconds for times further than 317 billion years into the future. [edit] Ultimate fate The lowly photon is now king of the Universe as the last of the supermassive black holes evaporate. The lowly photon is now king of the Universe as the last of the supermassive black holes evaporate. [edit] The Dark Age - from 10100 years until 10150 years All Black Holes now Disintegrated: 10150 years The remaining black holes evaporate: first the small ones, and then the supermassive black holes. All matter that used to make up the stars and galaxies has now degenerated into photons and leptons. [edit] The Photon Age - 10150 years and Beyond The Universe Achieves Low-Energy State: 1010³ years and beyond The Universe now reaches an extremely low-energy state. What happens after this is speculative. It's possible a Big Rip event may occur far off into the future, or the Universe may settle into this state forever, achieving true heat death. Extreme low-energy states imply that localized quantum events become major macroscopic phenomena rather than negligible microscopic events because the smallest perturbations make the biggest difference in this era, so there is no telling what may happen to space or time. It is perceived that the laws of "macro-physics" will break down, and the laws of "quantum-physics" will prevail. That's heat death from wiki. It's a accurate idea of how heat death works, The universe itself won't die, but all matter will fall apart. "

you practically answered your own question...

#23 Posted by Vrakmul (23849 posts) - - Show Bio

Travveler says:

"Dreadnaught says:
"The heat death is a possible final state of the universe, in which it has "run down" to a state of no thermodynamic free energy to sustain motion or life. In physical terms, it has reached maximum entropy. The hypothesis of a universal heat death stems from the 1850s ideas of William Thomson (Lord Kelvin) who extrapolated the theory of heat views of mechanical energy loss in nature, as embodied in the first two laws of thermodynamics, to universal operation. Contents [hide] * 1 Origins of the idea o 1.1 History * 2 Temperature of the universe * 3 Current status * 4 Timeline for heat death o 4.1 The Degenerate Age - from 1014 to 1040 years + 4.1.1 Galaxy and star formation ceases: 1014 years + 4.1.2 Planets fall or are flung from orbits: 1015 years + 4.1.3 Stars fall or are flung from orbits: 1016 years + 4.1.4 An estimated half of protons decay: 1036 years + 4.1.5 All protons decay: 1040 years o 4.2 The Black Hole Age - from 1040 years to 10100 years + 4.2.1 Black holes dominate: 1040 years + 4.2.2 Black holes disintegrate: 10100 years * 5 Ultimate fate o 5.1 The Dark Age - from 10100 years until 10150 years o 5.2 The Photon Age - 10150 years and Beyond * 6 See also * 7 References * 8 External links [edit] Origins of the idea The idea of heat death stems from the second law of thermodynamics, which states that entropy tends to increase in an isolated system. If the universe lasts for a sufficient time, it will asymptotically approach a state where all energy is evenly distributed. In other words, in nature there is a tendency to the dissipation (energy loss) of mechanical energy (motion); hence, by extrapolation, there exists the view that the mechanical movement of the universe will run down in time due to the second law. The idea of heat death was first proposed in loose terms beginning in 1851 by William Thomson, who theorized further on the mechanical energy loss views of Sadi Carnot (1824), James Joule (1843), and Rudolf Clausius (1850). Thomson’s views were then elaborated on more definitively over the next decade by Hermann von Helmholtz and William Rankine. [edit] History The idea of heat death of the universe derives from discussion of the application of the first two laws of thermodynamics to universal processes. Specifically, in 1851 William Thomson outlined the view, as based on recent experiments on the dynamical theory of heat, that “heat is not a substance, but a dynamical form of mechanical effect, we perceive that there must be an equivalence between mechanical work and heat, as between cause and effect.” [1] William Thomson (Lord Kelvin) - originated the idea of universal heat death in 1852. William Thomson (Lord Kelvin) - originated the idea of universal heat death in 1852. In 1852, Thomson published his “On a Universal Tendency in Nature to the Dissipation of Mechanical Energy” in which he outlined the rudiments of the second law of thermodynamics summarized by the view that mechanical motion and the energy used to create that motion will tend to dissipate or run down, naturally.[2] The ideas in this paper, in relation to their application to the age of the sun and the dynamics of the universal operation, attracted the likes of William Rankine and Hermann von Helmholtz. The three of them were said to have exchanged ideas on this subject.[3] In 1862, Thomson published the article “On the age of the sun’s heat” in which he reiterated his fundamental beliefs in the indestructibility of energy (the first law) and the universal dissipation of energy (the second law), leading to diffusion of heat, cessation of motion, and exhaustion of potential energy through the material universe while clarifying his view of the consequences for the universe as a whole. The key paragraph is:[4] “ The result would inevitably be a state of universal rest and death, if the universe were finite and left to obey existing laws. But it is impossible to conceive a limit to the extent of matter in the universe; and therefore science points rather to an endless progress, through an endless space, of action involving the transformation of potential energy into palpable motion and hence into heat, than to a single finite mechanism, running down like a clock, and stopping for ever. ” In the years to follow both Thomson’s 1852 and the 1862 papers, Helmholtz and Rankine both credited Thomson with the idea, but read further into his papers by publishing views stating that Thomson argued that the universe will end in a “heat death” (Helmholtz) which will be the “end of all physical phenomena” (Rankine).[3][5] [edit] Temperature of the universe In a "heat death", the temperature of the entire universe would be very close to absolute zero. Heat death is, however, not quite the same as "cold death", or the "Big Freeze", in which the universe simply becomes too cold to sustain life due to continued expansion, though the result is quite similar.[6] [edit] Current status Inflationary cosmology suggests that in the early universe, before cosmic expansion, energy was uniformly distributed[7], and thus the universe was in a state superficially similar to heat death. However, the two states are in fact very different: in the early universe, gravity was a very important force, and in a gravitational system, if energy is uniformly distributed, entropy is quite low, compared to a state in which most matter has collapsed into black holes. Thus, such a state is not in thermal equilibrium, and in fact there is no thermal equilibrium for such a system, as it is thermodynamically unstable.[8][9] However, in the heat death scenario, the energy density is so low that the system can be thought of as non-gravitational, such that a state in which energy is uniformly distributed is a thermal equilibrium state, i.e., the state of maximal entropy. The final state of the universe depends on the assumptions made about its ultimate fate, and these assumptions have varied considerably over the late 20th century and early 21st century. In a "closed" universe that undergoes recollapse, a heat death is expected to occur, with the universe approaching arbitrarily high temperature and maximal entropy as the end of the collapse approaches. In an "open" or "flat" universe that continues expanding indefinitely, a heat death is also expected to occur, with the universe cooling to approach absolute zero temperature and approaching a state of maximal entropy over a very long time period. There is dispute over whether or not an expanding universe can approach maximal entropy; it has been proposed that in an expanding universe, the value of maximum entropy increases faster than the universe gains entropy, causing the universe to move progressively farther away from heat death.[citation needed] Finally, some models of dark energy cause the universe to expand in ways that result in some amount of usable energy always being available, preventing the universe from ever reaching a state of maximum entropy.[citation needed] The expectation of the scientific community as of 2007 is that the universe will continue expanding indefinitely.[citation needed] The fate of sapient life in a universe approaching heat death is speculative, and again depends on the assumptions made. It has been proposed that in a collapsing universe, there is enough usable energy to perform an arbitrarily large amount of computation before the collapse completes. This scenario is called the Omega point, and it would theoretically allow a society that practices mind uploading to experience an arbitrarily large amount of subjective time in simulated realities. In an expanding universe, it has been proposed that some mechanism would exist to allow sapient life to continue processing information indefinitely. This proposal is called the final anthropic principle. However, the expectation among the majority of scientists is that the heat death of the universe will bring an end to the ability to perform information processing, and hence an end to any form of sapient life.[citation needed] [edit] Timeline for heat death This is an asteroid, one of the last survivors in a dying Universe. In reality it's unlikely the object would be illuminated by a surviving star and would probably be immersed in darkness during this Age. This is an asteroid, one of the last survivors in a dying Universe. In reality it's unlikely the object would be illuminated by a surviving star and would probably be immersed in darkness during this Age. [edit] The Degenerate Age - from 1014 to 1040 years [edit] Galaxy and star formation ceases: 1014 years Stellar formation stops, leaving matter to decay over a very long period of time. The hydrogen fuel used for fusion by stars will be eventually depleted, leaving all matter in the Universe in a compact state populated by the following objects after all stars burn out: * Planets and planetoids (this category includes asteroids, comets, brown dwarfs, etc.) * White dwarfs * Black dwarfs * Neutron stars * Quark stars * Black Holes Formerly luminous bodies like stars cool and dim, eventually reaching the same temperature as the Universe's microwave background radiation. Occasionally, brown dwarfs collide with each other and form a new red dwarf star which will survive for billions of years, which is the only visible light source in the universe. [edit] Planets fall or are flung from orbits: 1015 years Over time, the orbits of planets decay due to gravitational radiation or the planets are ejected from their local systems by gravitational perturbations. [edit] Stars fall or are flung from orbits: 1016 years The same scattering effect happens to stars and their remnants within galaxies, leaving mostly scattered stellar debris and supermassive black holes. The mighty supermassive black holes are all that remains of galaxies once all protons decay, but even these giants are not immortal. The mighty supermassive black holes are all that remains of galaxies once all protons decay, but even these giants are not immortal. [edit] An estimated half of protons decay: 1036 years If estimates of the half-life of protons are correct, then one-half of all the free-floating matter in the Universe has been converted into gamma radiation and leptons through proton decay. [edit] All protons decay: 1040 years If estimates on the half-life of protons (1036 years) are correct, then protons (and nucleonic neutrons as well) will undergo roughly 10,000 half-lives by the time the universe is 1040 years-old. To put this into perspective, there are an estimated 1080 protons currently in the Universe. This means the proton's numbers will be slashed in half 10,000 times by the time it is 1040 years-old. Hence, there will be roughly ½10,000 (approximately 5 × 10–3011) as many protons remaining as there are today; that is, zero protons remaining in the Universe at the end of the Degenerate Age. Effectively, all matter would be contained in the only bodies in the Universe immune to proton decay: black holes. Note: This number is based on loose estimates as the exact value for the half-life of protons is an unknown quantity with only a known lower-bound. The end of the Degenerate Era is meant to mark the end of baryonic matter's influence on the Universe, so the estimate for how long this era will last may change if and when the exact value for proton decay is pinned down. The specific numerical values are not meant to be taken literally, and are provided only for demonstration purposes. [edit] The Black Hole Age - from 1040 years to 10100 years [edit] Black holes dominate: 1040 years Black holes continue to evaporate via Hawking radiation, but this process is very slow. [edit] Black holes disintegrate: 10100 years Few if any black holes remain; virtually all matter is now converted into photons. See also 1019 seconds for times further than 317 billion years into the future. [edit] Ultimate fate The lowly photon is now king of the Universe as the last of the supermassive black holes evaporate. The lowly photon is now king of the Universe as the last of the supermassive black holes evaporate. [edit] The Dark Age - from 10100 years until 10150 years All Black Holes now Disintegrated: 10150 years The remaining black holes evaporate: first the small ones, and then the supermassive black holes. All matter that used to make up the stars and galaxies has now degenerated into photons and leptons. [edit] The Photon Age - 10150 years and Beyond The Universe Achieves Low-Energy State: 1010³ years and beyond The Universe now reaches an extremely low-energy state. What happens after this is speculative. It's possible a Big Rip event may occur far off into the future, or the Universe may settle into this state forever, achieving true heat death. Extreme low-energy states imply that localized quantum events become major macroscopic phenomena rather than negligible microscopic events because the smallest perturbations make the biggest difference in this era, so there is no telling what may happen to space or time. It is perceived that the laws of "macro-physics" will break down, and the laws of "quantum-physics" will prevail. That's heat death from wiki. It's a accurate idea of how heat death works, The universe itself won't die, but all matter will fall apart. "

you practically answered your own question..."

It's not certain. It's one way not the only way. It could be the big crunch it could be the big freeze.

#24 Posted by Travveler (120 posts) - - Show Bio

well mega, im sure you'll work it out :P

#25 Posted by Vrakmul (23849 posts) - - Show Bio

Travveler says:

"well mega, im sure you'll work it out :P"

I'm not Einstein. And Even if I was I probably wouldn't figure it out in my life time.

#26 Posted by Travveler (120 posts) - - Show Bio

Dreadnaught says:

"Travveler says:
"well mega, im sure you'll work it out :P "
I'm not Einstein. And Even if I was I probably wouldn't figure it out in my life time."

awww but we can always guess and come up with theories? isnt that right?

#27 Posted by Vrakmul (23849 posts) - - Show Bio

Travveler says:

"Dreadnaught says:
"Travveler says:
"well mega, im sure you'll work it out :P "
I'm not Einstein. And Even if I was I probably wouldn't figure it out in my life time."

awww but we can always guess and come up with theories? isnt that right?"

Yeah. And by "not in my lifetime" I mean if I did it on my own. With others maybe, but most likely not. Humanity needs to evolve more before we can find out everything for sure.

#28 Posted by warlock360 (28064 posts) - - Show Bio

I say the end of OUR Universe is the beginning of a new one

#29 Posted by Travveler (120 posts) - - Show Bio

i gotcha.

#30 Posted by Vrakmul (23849 posts) - - Show Bio

Warlock360 says:

"I say the end of OUR Universe is the beginning of a new one"

There are an infinite number of universes, so even if ours doesn't revive, it won't matter much to the Multiverse as a whole.

#31 Posted by Travveler (120 posts) - - Show Bio

i think that there will be a reverse big bang...

and then the universe will start again...

or time warp :S

#32 Posted by Vrakmul (23849 posts) - - Show Bio

By then all life would probably have left the universe or have become energy biengs, or have died. If you can't adapt to the situation then you will probably die.

#33 Posted by warlock360 (28064 posts) - - Show Bio

Travveler says:

"i think that there will be a reverse big bang...and then the universe will start again...or time warp :S"

thats kinda what i ment

#34 Posted by Mantid (4418 posts) - - Show Bio

Uhhh... America blows up the universe?

#35 Posted by warlock360 (28064 posts) - - Show Bio

Mantid says:

"Uhhh... America blows up the universe?"

Or the asians make a computer so fast it warps the intire universe into a microverse where we all are zapped into oblivion by a GIGANTIC flying invisible pink unicorn!

#36 Posted by Travveler (120 posts) - - Show Bio

Mantid says:

"Uhhh... America blows up the universe?"

or your hair goes like mine!

mantid loves me hair btw lol

#37 Posted by Vrakmul (23849 posts) - - Show Bio

Mantid says:

"Uhhh... America blows up the universe?"

Unlikely, by then humanity would have evolved into something, better.

#38 Posted by warlock360 (28064 posts) - - Show Bio

a second braidy!?

#39 Posted by Mantid (4418 posts) - - Show Bio

Hey, I told you that was a secret!

lol.

#40 Posted by Travveler (120 posts) - - Show Bio

Warlock360 says:

"a second braidy!?"

oi!

my hairs STRAIGHT now!

straightened it (yes i am a boy.... a strange boy...ask mantid lol)

and its long and i will take over the world with it muahahaha

#41 Posted by crazy spidey (3489 posts) - - Show Bio

Warlock360 says:

"I say the end of OUR Universe is the beginning of a new one"

thats pretty much wat i said

#42 Posted by warlock360 (28064 posts) - - Show Bio

Travveler says:

"Warlock360 says:
"a second braidy!?"

oi!

my hairs STRAIGHT now!

straightened it (yes i am a boy.... a strange boy...ask mantid lol)

and its long and i will take over the world with it muahahaha"

gonna have to beat my ID picture first ;P

@ Crazy Spidey: xP^^

#43 Posted by warlock360 (28064 posts) - - Show Bio

Travveler says:

"Warlock360 says:
"Travveler says:
"Warlock360 says:
"a second braidy!?"
oi! my hairs STRAIGHT now! straightened it (yes i am a boy.... a strange boy...ask mantid lol) and its long and i will take over the world with it muahahaha"
gonna have to beat my ID picture first ;P @ Crazy Spidey: xP^^"

"

ive got shoulder length ;P

#44 Posted by Travveler (120 posts) - - Show Bio

Warlock360 says:

"Travveler says:
"Warlock360 says:
"a second braidy!?"
oi! my hairs STRAIGHT now! straightened it (yes i am a boy.... a strange boy...ask mantid lol) and its long and i will take over the world with it muahahaha"
gonna have to beat my ID picture first ;P @ Crazy Spidey: xP^^"

#45 Posted by warlock360 (28064 posts) - - Show Bio

OMG i just though about something....if someone clicks on this for the first time right now and sees Rons NON-curly hair he thinks...

"the ultimata fate of the universe is Ron having straight hair!?... cool :D"

ROFL...

#46 Posted by Travveler (120 posts) - - Show Bio

mine is!!!!

and dont quote my picture!

perves can get it easier if theres more!

and dont start about me liking older women!

ahh. headache :(

#47 Posted by warlock360 (28064 posts) - - Show Bio

Travveler says:

"mine is!!!!and dont quote my picture!perves can get it easier if theres more!and dont start about me liking older women!ahh. headache :("

so basicly i shouldnt be posting this:

and this

right?^^

#48 Posted by Travveler (120 posts) - - Show Bio

oh shutup!

lol :P haha.... dats actually pretty funny.... :P

#49 Posted by warlock360 (28064 posts) - - Show Bio

Legendary Bio Vishanti says:

"ok, here's a more logical explanation.the Universe will start to expand at such a rapid rate that all its elements, from galaxies to atoms, will be torn apart by the extreme expansion rate of the Universe. This is scheduled to happen about 20 billion years from now.The force that is causing the Universe’s matter to push outwards is what’s known as dark energy. This is why galaxies are moving away from each other—and why they will continue to do so until gravity will be too weak to hold them together.Eventually, in the final months of the Universe, our solar system will be gravitationally unbound. In the last minutes, stars and planets will be torn apart. And in the Universe’s final spastic salvo all atoms will be destroyed."

and after that?

#50 Posted by warlock360 (28064 posts) - - Show Bio

Travveler says:

"i hate you.j/kpleez go make a thread bout this..."