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Everything posted by Skullzrulerz
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The universe began with the big bang (Some may think others way of the beginning of the universe). But the universe has to end one day? Or will just go on forever? There are some predictions about the fate of the universe. 1.Big freeze This scenario is generally considered to be the most likely,as it occurs if the universe continues expanding as it has been. Over a time scale on the order of 1014 years or less, existing stars burn out, stars cease to be created, and the universe goes dark.Over a much longer time scale in the eras following this, the galaxy evaporates as the stellar remnants comprising it escape into space, and black holes evaporate via Hawking radiation.In some grand unified theories, proton decay after at least 1034 years will convert the remaining interstellar gas and stellar remnants into leptons (such as positrons and electrons) and photons. Some positrons and electrons will then recombine into photons.In this case, the universe has reached a high-entropy state consisting of a bath of particles and low-energy radiation. It is not known however whether it eventually achieves thermodynamic equilibrium. 2.Big Crunch If the energy density of dark energy were negative or the universe were closed, then it would be possible that the expansion of the universe would reverse and the universe would contract towards a hot, dense state. This is a required element of oscillatory universe scenarios, such as the cyclic model, although a Big Crunch does not necessarily imply an oscillatory Universe. Current observations suggest that this model of the universe is unlikely to be correct, and the expansion will continue or even accelerate. 3.Big Rip This scenario is possible only if the energy density of dark energy actually increases without limit over time.[citation needed] Such dark energy is called phantom energy and is unlike any known kind of energy. In this case, the expansion rate of the universe will increase without limit. Gravitationally bound systems, such as clusters of galaxies, galaxies, and ultimately the Solar System will be torn apart. Eventually the expansion will be so rapid as to overcome the electromagnetic forces holding molecules and atoms together. Finally even atomic nuclei will be torn apart and the universe as we know it will end in an unusual kind of gravitational singularity. At the time of this singularity, the expansion rate of the universe will reach infinity, so that any and all forces (no matter how strong) that hold composite objects together (no matter how closely) will be overcome by this expansion, literally tearing everything apart. 4.Vacuum metastability event If our universe is in a very long-lived false vacuum, it is possible that a small region of the universe will tunnel into a lower energy state. If this happens, all structures within will be destroyed instantaneously and the region will expand at near light speed, bringing destruction without any forewarning. 5.Heat death The heat death is a possible final state of the universe, estimated at after 10150 years, 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 (because of this, the term "entropy" has often been confused with Heat Death, to the point of entropy being labelled as the "force killing the universe"). 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. But its all a very long time away. So what do you think?
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Technological life elsewhere in the Galaxy/Universe
Skullzrulerz replied to Luke McDonnell's topic in Space, Science & nature
We will be waiting a long....long...long time to find out.Sadly we will not find out in 100 years time. -
Technological life elsewhere in the Galaxy/Universe
Skullzrulerz replied to Luke McDonnell's topic in Space, Science & nature
There has to be some 'Technological life' Somewhere in this possible infinite universe.Yet alone life.There was some sort of 'life' on mars before it was extinct for a unknown reason...We just have to find it. -
Weather in the general media (Newspaper features etc)
Skullzrulerz replied to Summer Sun's topic in Spring Weather Discussion
More heavy rain and wind to hit before New Year, forecasters say. http://www.bbc.co.uk/news/uk-25537098 -
Getting this too and a lot of it.
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South East & East Anglia Regional Weather Discussion 24/12/13
Skullzrulerz replied to Snowangel-MK's topic in Regional
A body has been discovered in a stream in Horton, Telford, Shropshire. West Mercia Police are treating the death as unexplained and a spokesman said it was not yet known whether or the not the death was related to the stormy weather conditions. -
Severe Atlantic Storms Over The Christmas Period #2
Skullzrulerz replied to Liam J's topic in Storms & Severe Weather
A body has been discovered in a stream in Horton, Telford, Shropshire. West Mercia Police are treating the death as unexplained and a spokesman said it was not yet known whether or the not the death was related to the stormy weather conditions.- 986 replies
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South East & East Anglia Regional Weather Discussion 23/12/13
Skullzrulerz replied to Snowangel-MK's topic in Regional
the BBC's transport correspondent Richard Westcott says there is severe disruption at Euston station in London.Power supply problems around the Watford area mean virtually nothing is leaving the station at the moment.- 1,154 replies
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Severe Atlantic Storms Over The Christmas Period #2
Skullzrulerz replied to Liam J's topic in Storms & Severe Weather
he BBC's transport correspondent Richard Westcott says there is severe disruption at Euston station in London. Power supply problems around the Watford area mean virtually nothing is leaving the station at the moment.- 986 replies
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Severe Atlantic Storms Over The Christmas Period #2
Skullzrulerz replied to Liam J's topic in Storms & Severe Weather
BREAKING NEWS The body of a man has been found in the River Rothay at Ambleside in the Lake District after an extensive search by the RAF, emergency services, coastguard, mountain rescue and lake wardens from Windermere.- 986 replies
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Severe Atlantic Storms Over The Christmas Period #2
Skullzrulerz replied to Liam J's topic in Storms & Severe Weather
1524: Emergency services are searching for a man who is believed to have fallen into the River Rothay at Ambleside, Cumbria, which flows towards Lake Windermere. The incident was reported by a member of the public just before 15:30 GMT.- 986 replies
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Severe Atlantic Storms Over The Christmas Period #2
Skullzrulerz replied to Liam J's topic in Storms & Severe Weather
BREAKING NEWS Southampton Airport has closed because of high winds.- 986 replies
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Severe Atlantic Storms Over The Christmas Period #2
Skullzrulerz replied to Liam J's topic in Storms & Severe Weather
thanks.- 986 replies
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Severe Atlantic Storms Over The Christmas Period #2
Skullzrulerz replied to Liam J's topic in Storms & Severe Weather
Red Area? Cant see it?- 986 replies
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Severe Atlantic Storms Over The Christmas Period #2
Skullzrulerz replied to Liam J's topic in Storms & Severe Weather
1137: BBC Radio Cornwall tweets: "The gale currently battering Cornwall is causing huge problems."- 986 replies
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Severe Atlantic Storms Over The Christmas Period #2
Skullzrulerz replied to Liam J's topic in Storms & Severe Weather
The warning is on tuesday.- 986 replies
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Amber warning for wind Valid from: 0005 on Tue 24 Dec 2013 Valid to: 0600 on Tue 24 Dec 2013 Southwesterly gales and locally severe gales will continue across southern and eastern parts of England during Monday night, but are expected to strengthen further across parts of southeast England, in the Amber warning area, during the early hours of Tuesday, with gusts of 65-75 mph inland and 75-85 mph along exposed coasts. The winds will ease from the west by morning. The public should be prepared for disruption, particularly to travel and for interruptions to power supplies. Winds will strengthen further across southeast England during the early hours of Tuesday, with the potential for damaging gusts inland as well as along the coast. The winds will ease quickly from the west before dawn.
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Severe Atlantic Storms Over The Christmas Period #2
Skullzrulerz replied to Liam J's topic in Storms & Severe Weather
11:19 The AA's Special Response Team tweets: "Terrible driving conditions. Slow down & look out for surface water & debris on the road #BePrepared #ThinkDontSink #FloodAware #UKStorm."- 986 replies
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