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Mikorist

Get everything down on pen and paper

2292 posts in this topic

Scientists around the world will be watching closely as three eruptions from the Sun reach the Earth over Thursday and Friday.These "coronal mass ejections" will slam into the Earth's magnetic shield.The waves of charged solar particles are the result of three solar flares directed at Earth in recent days, including the most powerful since 2006.The biggest flares can disrupt technology, including power grids, communications systems and satellites.The northern lights (Aurora Borealis) may also be visible further south than is normally the case - including from northern parts of the UK."Our current view is that the effect of the solar flare is likely to reach Earth later today (Thursday GMT), possibly tomorrow morning," said Alan Thomson, head of geomagnetism at the British Geological Survey (BGS).He told BBC News: "In the scientific community, there's a feeling that it's not as intense as we first thought it might be. But it's possible still that it could be a large enough event for us to see the northern lights in the UK."However, weather forecasts suggested cloudy conditions could mar views of any aurorae.Technological impactThe US National Oceanographic and Atmospheric Administration (Noaa) said that three coronal mass ejections (CMEs) were en route as the result of solar flares on the 13, 14 and 15 February (GMT)."The last of the three seems to be the fastest and may catch both of the forerunners about mid-to-late day tomorrow, February 17," read a statement from Noaa's Space Weather Prediction Center.Aurorae The northern lights could be seen further south than is normalThe flare recorded at 0156 GMT on 15 February was the strongest such event in four years, according to the US space agency (Nasa), which has been monitoring activity on the Sun. The event was classified as a so-called X-flare, the most intense type.The source of all three events, sunspot 1158, has expanded rapidly in recent days.Solar flares are caused by the sudden release of magnetic energy stored in the Sun's atmosphere.Their effects can interfere with modern technology on Earth, such as electrical power grids, communications systems and satellites - including satellite navigation (or sat-nav) signals.Although scientists are expecting most geomagnetic activity to occur on Thursday, Chinese state media has already reported some disruption to shortwave radio communications in the south of the country.Awakening SunIn 1972, a geomagnetic storm provoked by a solar flare knocked out long-distance telephone communication across the US state of Illinois. And in 1989, another storm plunged six million people into darkness across the Canadian province of Quebec.Dr Thomson said it was possible infrastructure could be affected this time, but stressed: "The X-flare that was observed the other day was lower in magnitude than similar flares that have been associated with technological damage such as the loss of the Quebec power grid... and even the large magnetic storm in 2003, which caused some damage to satellites in orbit."Scientists will have around half an hour's notice that the wave of charged particles is about to hit the Earth's magnetic shield.This is taken from the point at which a Nasa satellite called Ace (the Advanced Composition Explorer) registers the solar radiation on its instruments: "We're sitting waiting for that event to happen," said Dr Thomson.Researchers say the Sun has been awakening after a period of several years of low activity.

http://www.bbc.co.uk/news/science-environment-12493980

They fear a huge solar flare is due to erupt in 2013 - causing blackouts and global chaos.The once-in-a-century disaster could see power grids crash, communication systems collapse, planes grounded, food supplies hit and the internet shut down.Everything from home freezers to car sat navs would be affected.The disaster could mirror the Great Solar Flare of 1859. That wreaked horrendous damage across Europe and America - burning out telegraph wires across both continents.The threat of another disaster - which could mirror scenes in Hollywood blockbuster 2012 - is so great that Defence Secretary Liam Fox called an emergency conference in London yesterday.Dr Fox told experts that incalcul-able damage would be caused if an explosion similar to the one in 1859 occurred in modern times. He called on scientists to build a strategy against the impending disaster.The talks, organised by the Electric Infrastructure Security Council, heard that the Sun will reach a critical stage of its cycle in 2013.A surge of magnetic energy in its atmosphere is likely to trigger radiation storms which cause massive power surges.Such a phenomenon occurs only once about every 100 years.The last big flare, in 1859, smothered two thirds of the Earth's skies in a blood-red aurora. Such scenes could occur again, causing cloud storms in major modern cities such as London, Paris and New York.In 1989, a more common smaller solar flare took out power stations in Quebec, Canada.In the movie 2012, starring John Cusack, a solar flare causes global temperatures to soar. The planet is then battered by tsunamis and earthquakes, threatening mankind.Yesterday's conference also heard that a hostile power could cause a similar effect by exploding a nuclear weapon in space.Dr Fox added: "While we all benefit from scientific advances, so we also create vulnerabilities that can be exploited by our enemies."However advanced we become, the chain of our security is only as strong as its weakest link."Last night the electric security council discussed a plan of action.And former US government defence adviser Dr Avi Schnurr warned: "A geomagnetic storm could shatter nations all over the earth. We cannot wait for disaster to spur us to action."PRECIOUS jewels could rain down during dust storms on faraway planets, scientists say.University of St Andrews boffins investigating atmospheric systems believe dust clouds in parts of space could be full of rubies and sapphires.

Izvor:http://www.thesun.co.uk/sol/homepage/news/3145874/Solar-flare-to-paralyse-Earth-in-2013.htmlverovatno nece da bude onako kao u Fimu ....... pre ce da odmaramo malo od kompa - da pisemo pisma i da saljemo golubove pismonose :rofl:prava romantika -vracamo se na dvokolice i trokolice :tongue10:

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nakrkaj babuski u fioku , kompletno AC grejanje , cevne ispravljacice i koju malu lampu za phono ...... i Bog te vido :crazyrocker:

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I spremi biciklo i dinamo pa da vrtis pedale ako mislis da ti nesto elektricno svira... :rofl:Bolje kupi trumpetu i cemane i vezbaj :D

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solarnoa i to sto kazes - ce duvamo u frulu i ojkamo :crazyrocker:

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Malo ce skupo da bude da teras babusku solarno - jedino ako vlakno grejes lupom, na zizu - bolje onda da ojkamo... :buehehe:

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duvacemo u frulu samo tri godine :crazyrocker: razmislite ozbiljno na ovu temu :scratch_head: sta ako stvarno tri godine ne bude moglo nista da radi ? :connie_nutzo: vracamo se svi na selo - LOL - fenjeri - furune na drva :serbvidkakisicl0:u Etiopiji niko nista nece da primeti sem crvenog neba :rofl:

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University of St Andrews boffins investigating atmospheric systems believe dust clouds in parts of space could be full of rubies and sapphires.

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University of St Andrews boffins investigating atmospheric systems believe dust clouds in parts of space could be full of rubies and sapphires.

extra - glavno zanimanje te tri godine bice skupljanje nakita :happy64:

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I onda cemo pricati price kako smo imali nesto sto se zvalo internet, slusali full-range zvucnike, a neki ekscentrici su cak tvrdili da mogu cuti razliku izmedju kablova... :buehehe:Ma smislicemo mi vec nesto. Evo Stein ima super potkrovlje pa bi kod njega mogli drzati golubove pismonose :buehehe: A onima sa velikog Diyaudio ce biti teze, nema takih' golubova da prelete okean :)

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