خبر فوری:LHC تست شد
خبر فوری:LHC تست شد
از ساعتي پيش،بزرگترين آزمايش علمي تاريخ بشر در مرز فرانسه و سوييس آغاز شد.ساعت 12 ظهر به وقت ايران، اتاق كنترل شتاب دهنده حلقوي سرن به نام LHC كه ميزبان مديران سالهاي دور و نزديك اين مجموعه، دانشمندان و خبرنگاران بود ،با توضيحات كوتاه مدير فعلي سرن،كار خود را آغاز كرد.
به گزارش جام جم آنلاين وي در سخنان كوتاه خود اين روز را روز بزرگي براي سرن و شتاب دهنده LHC خواند. شتاب دهنده اي كه با مشاركت بيش از 50 كشور جهان – از جمله ايران – و فعاليت شبانه روزي چند هزار دانشمند در مدت 10 سال ساخته شده است. اين شتاب دهنده به شكل دايره اي غول ژيكر در زير زمين و زير خاك كشورهاي فرانسه و سوييس مي گذرد و دايره اي به محيط 27 كيلومتر را شكل مي دهد.
پس از صحبتهاي ابتدايي ،اولين باريكه پروتون وارد اين شتاب دهنده شد و مراحل اول تنظيم مسير را سپري كرد.در اين آزمايش كه از آن به آزمايش مهبانگ نام مي برند، قرار است دو پروتون با سرعت قريب به سرعت نور با هم برخورد كنند.
فيزيكدانان ذرات معتقدند در اين آزمايش مي توانند شرايط اوليه شكل گيري عالم بر مبناي نظريه مهبانگ را شبيه سازي كنند. آنها اميدوارند در اين چند ميليونيوم ثانيه،اتحاد نيروهاي اصلي ، ابعاد اضافي عالم ، ماده تاريك، ضد ماده و همينطور بسياري از ذرات بنيادي ابتدايي را آشكار كنند.
بسياري از محققان اميدوارند با انجام اين آزمايش و تكرار آن در ماهها و سالهاي آينده به شرايط اوليه كيهان دست يابند. همچنين با بررسي ذرات بنيادي بتوانند به ذره بنيادي كه عامل به وجود آمدن جرم در مواد مي شود دست پيدا كنند.
اين پروژه با هزينه اي بيش از 8 ميليارد يورو آغاز شده است و مهندسان پيچيدگي آن را بسيار بيش از پيچيدگي ماموريت سفر انسان به ماه مي دانند.
تا اين لحظه همه مراحل آزمايش مطابق برنامه از پيش تعيين شده به پيش رفته است.
منبع:http://www.bazyab.ir/index.php?option=c ... &Itemid=49
به گزارش جام جم آنلاين وي در سخنان كوتاه خود اين روز را روز بزرگي براي سرن و شتاب دهنده LHC خواند. شتاب دهنده اي كه با مشاركت بيش از 50 كشور جهان – از جمله ايران – و فعاليت شبانه روزي چند هزار دانشمند در مدت 10 سال ساخته شده است. اين شتاب دهنده به شكل دايره اي غول ژيكر در زير زمين و زير خاك كشورهاي فرانسه و سوييس مي گذرد و دايره اي به محيط 27 كيلومتر را شكل مي دهد.
پس از صحبتهاي ابتدايي ،اولين باريكه پروتون وارد اين شتاب دهنده شد و مراحل اول تنظيم مسير را سپري كرد.در اين آزمايش كه از آن به آزمايش مهبانگ نام مي برند، قرار است دو پروتون با سرعت قريب به سرعت نور با هم برخورد كنند.
فيزيكدانان ذرات معتقدند در اين آزمايش مي توانند شرايط اوليه شكل گيري عالم بر مبناي نظريه مهبانگ را شبيه سازي كنند. آنها اميدوارند در اين چند ميليونيوم ثانيه،اتحاد نيروهاي اصلي ، ابعاد اضافي عالم ، ماده تاريك، ضد ماده و همينطور بسياري از ذرات بنيادي ابتدايي را آشكار كنند.
بسياري از محققان اميدوارند با انجام اين آزمايش و تكرار آن در ماهها و سالهاي آينده به شرايط اوليه كيهان دست يابند. همچنين با بررسي ذرات بنيادي بتوانند به ذره بنيادي كه عامل به وجود آمدن جرم در مواد مي شود دست پيدا كنند.
اين پروژه با هزينه اي بيش از 8 ميليارد يورو آغاز شده است و مهندسان پيچيدگي آن را بسيار بيش از پيچيدگي ماموريت سفر انسان به ماه مي دانند.
تا اين لحظه همه مراحل آزمايش مطابق برنامه از پيش تعيين شده به پيش رفته است.
منبع:http://www.bazyab.ir/index.php?option=c ... &Itemid=49
لوگوي گوگل به مناسبت راهاندازي قدرتمندترين شتابدهندهي ذرا
لوگوي موتور جستوجوي گوگل امروز به مناسبت راهاندازي Large Hadron Collider-LHC ( برخورد دهنده بزرگ هادروني) که بزرگترين شتابدهندهي ذرات تاريخ بشر محسوب ميشود، تغيير كرد.
به گزارش سرويس فنآوري اطلاعات خبرگزاري دانشجويان ايران (ايسنا)، گوگل كه همچنان غول دنياي جستوجوي اينترنت شناخته ميشود، سنت ديرينهاي دارد كه در آن براي گراميداشت رويدادها و جشنهاي مختلف يا سالروز تولد مشاهير جهاني لوگوي خود را تغيير ميدهد.
لوگوي زيبا و سادهي اين موتور جستوجو امروز، 20 شهريورماه، همزمان با راهاندازي شدن قدرتمندترين شتاب دهنده ذرات جهان كه با هدف كشف اسرار كائنات طراحي شده و براي نخستين بار دستهاي از پروتونها را در کل مسير 27 کيلومتري حلقه شتاب دهنده LHC عبور ميدهد تغيير كرد؛ اين شتاب دهنده بيش از 5 ميليارد دلار هزينه داشته است.
كاربران با كليك برروي لوگوي تغيير يافتهي گوگل به صفحهي نتايج جستوجويي هدايت ميشوند كه در آن لينكهاي سايتها و وبلاگهاي مختلفي كه به موضوع مورد تاكيد گوگل پرداختهاند، مشاهده ميشوند.
بر اساس اين گزارش دانشمندان اميدوارند كه اين آزمايش به آنها در زمينه كشف پاسخ سوالات اساسي مانند اين كه ذرات چطور چگالي سبك ميكنند، كمك كند.
راهاندازي LHC با جنجال زيادي در رسانههاي گروهي مواجه شده است؛ بسياري از ناظران نگران بروز سياه چالها در اثر برخورد پروتونها در LHC هستند اما سازندگان ادعا ميکند که اين آزمايشات کاملا بيخطر هستند.
منبع:http://www.isna.ir/ISNA/NewsView.aspx?I ... 045&Lang=P
به گزارش سرويس فنآوري اطلاعات خبرگزاري دانشجويان ايران (ايسنا)، گوگل كه همچنان غول دنياي جستوجوي اينترنت شناخته ميشود، سنت ديرينهاي دارد كه در آن براي گراميداشت رويدادها و جشنهاي مختلف يا سالروز تولد مشاهير جهاني لوگوي خود را تغيير ميدهد.
لوگوي زيبا و سادهي اين موتور جستوجو امروز، 20 شهريورماه، همزمان با راهاندازي شدن قدرتمندترين شتاب دهنده ذرات جهان كه با هدف كشف اسرار كائنات طراحي شده و براي نخستين بار دستهاي از پروتونها را در کل مسير 27 کيلومتري حلقه شتاب دهنده LHC عبور ميدهد تغيير كرد؛ اين شتاب دهنده بيش از 5 ميليارد دلار هزينه داشته است.
كاربران با كليك برروي لوگوي تغيير يافتهي گوگل به صفحهي نتايج جستوجويي هدايت ميشوند كه در آن لينكهاي سايتها و وبلاگهاي مختلفي كه به موضوع مورد تاكيد گوگل پرداختهاند، مشاهده ميشوند.
بر اساس اين گزارش دانشمندان اميدوارند كه اين آزمايش به آنها در زمينه كشف پاسخ سوالات اساسي مانند اين كه ذرات چطور چگالي سبك ميكنند، كمك كند.
راهاندازي LHC با جنجال زيادي در رسانههاي گروهي مواجه شده است؛ بسياري از ناظران نگران بروز سياه چالها در اثر برخورد پروتونها در LHC هستند اما سازندگان ادعا ميکند که اين آزمايشات کاملا بيخطر هستند.
منبع:http://www.isna.ir/ISNA/NewsView.aspx?I ... 045&Lang=P
خبر فوری:LHC تست شد
Scientists Search for Missing Mass, `God Particle'
By Warren Giles
Sept. 10 (Bloomberg) -- The world's biggest magnetic loop powered up today outside Geneva in a quest to understand the beginning of time and find the missing mass created by the so- called Big Bang 13.7 billion years ago.
Scientists at the European Organization for Nuclear Research aim to find some of the 96 percent of the universe's missing building materials. They have created conditions as close as possible to the event known as Big Bang, including temperatures colder than outer space, in which particles traveling in opposite directions at near light-speed have been set on a collision course.
Physicists say they hope to prove within two years the existence of a particle that creates dark matter, part of the mass that went missing at the beginning of time.
The work behind the 27-kilometer long (16 mile) magnetic loop buried 100 meters (328 feet) under ground may prove the existence of the Higgs boson particle, which theory says gives other particles properties like mass. Its importance has earned it the nickname the God particle.
As the first beams of protons begin to lap at 11,000 revolutions a second, the resulting collisions may help explain the building materials of about a fifth of the missing universe. They may also reveal what so-called dark energy is and why the expansion of the universe is accelerating instead of slowing, as predicted by theory.
Beams were injected into the loop, known as the Large Hadron Collider, stage by stage around its circumference today. The LHC has two parallel tubes carrying the bundles of particles in opposite directions. At minus 271 degrees Celsius (minus 456 degrees Fahrenheit), the LHC is also the world's biggest fridge.
Looping Beams
One of the four experiments round the loop ``have seen some beautiful tracks coming off'' the first beams, said Lyn Evans, project leader of the LHC, speaking on a Web cast from the control center at CERN, the French acronym by which the center is known.
In generating an environment that resembles conditions one thousandth of a millionth of a second after the start of time and the creation of all the universe's building material, CERN will be inundated with data from the observations.
Within a year, the particle accelerator's four experiments, one of which involves equipment weighing 7,000 metric tons or the equivalent of a five-story subterranean Eiffel Tower, will have spewed enough data to fill a pile of compact discs 12 miles high.
While the spin-offs for technologies used in the 6 billion Swiss franc ($5.3 billion) experiments may not be immediately obvious, applications from other particle physics research include three-dimensional hospital scanners and non-invasive surgery, which will improve as a result of CERN's work.
The CERN complex, funded by governments including the U.S., and spread over the Swiss and French border, is where one alumni, Tim Berners-Lee, invented the first World Wide Web browser in 1989 to help physicists all over the globe better swap notes.
منبع:http://www.bloomberg.com/apps/news?pid= ... fer=europe
By Warren Giles
Sept. 10 (Bloomberg) -- The world's biggest magnetic loop powered up today outside Geneva in a quest to understand the beginning of time and find the missing mass created by the so- called Big Bang 13.7 billion years ago.
Scientists at the European Organization for Nuclear Research aim to find some of the 96 percent of the universe's missing building materials. They have created conditions as close as possible to the event known as Big Bang, including temperatures colder than outer space, in which particles traveling in opposite directions at near light-speed have been set on a collision course.
Physicists say they hope to prove within two years the existence of a particle that creates dark matter, part of the mass that went missing at the beginning of time.
The work behind the 27-kilometer long (16 mile) magnetic loop buried 100 meters (328 feet) under ground may prove the existence of the Higgs boson particle, which theory says gives other particles properties like mass. Its importance has earned it the nickname the God particle.
As the first beams of protons begin to lap at 11,000 revolutions a second, the resulting collisions may help explain the building materials of about a fifth of the missing universe. They may also reveal what so-called dark energy is and why the expansion of the universe is accelerating instead of slowing, as predicted by theory.
Beams were injected into the loop, known as the Large Hadron Collider, stage by stage around its circumference today. The LHC has two parallel tubes carrying the bundles of particles in opposite directions. At minus 271 degrees Celsius (minus 456 degrees Fahrenheit), the LHC is also the world's biggest fridge.
Looping Beams
One of the four experiments round the loop ``have seen some beautiful tracks coming off'' the first beams, said Lyn Evans, project leader of the LHC, speaking on a Web cast from the control center at CERN, the French acronym by which the center is known.
In generating an environment that resembles conditions one thousandth of a millionth of a second after the start of time and the creation of all the universe's building material, CERN will be inundated with data from the observations.
Within a year, the particle accelerator's four experiments, one of which involves equipment weighing 7,000 metric tons or the equivalent of a five-story subterranean Eiffel Tower, will have spewed enough data to fill a pile of compact discs 12 miles high.
While the spin-offs for technologies used in the 6 billion Swiss franc ($5.3 billion) experiments may not be immediately obvious, applications from other particle physics research include three-dimensional hospital scanners and non-invasive surgery, which will improve as a result of CERN's work.
The CERN complex, funded by governments including the U.S., and spread over the Swiss and French border, is where one alumni, Tim Berners-Lee, invented the first World Wide Web browser in 1989 to help physicists all over the globe better swap notes.
منبع:http://www.bloomberg.com/apps/news?pid= ... fer=europe
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عضویت : جمعه ۱۳۸۶/۶/۲ - ۲۱:۰۷
پست: 1412-
سپاس: 6
Re: خبر فوری:LHC تست شد
این آزمایش چه مدت طول می کشه ؟ شبکه ی تلویزیونی نمیشناسید که این رویداد بزرگ به تصویر بکشه ؟
Re: خبر فوری:LHC تست شد
LHC produces first images
scientists sent a single beam of protons in a clockwise direction around the full 27 kilometers of the Large Hadron Collider at the CERN laboratory near Geneva, Switzerland.
The journey began at 09:30 when LHC project leader Lyn Evans and his team launched protons into the ring. Progress was made in short steps of a few kilometers, so that physicists could learn how to steer the beam, which is traveling at 99.9998% the speed of light.
scientists sent a single beam of protons in a clockwise direction around the full 27 kilometers of the Large Hadron Collider at the CERN laboratory near Geneva, Switzerland.
The journey began at 09:30 when LHC project leader Lyn Evans and his team launched protons into the ring. Progress was made in short steps of a few kilometers, so that physicists could learn how to steer the beam, which is traveling at 99.9998% the speed of light.
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Re: خبر فوری:LHC تست شد
A few fun facts about the LHC Big Bang Machine
Large Hadron Collider is today's buzz phrase, so we've decided to give you a few extra special facts about the supposed "Big Bang Machine"...
> The Large Hadron Collider is the biggest machine ever created.
> The 27km long circular tunnel at CERN (European Organization for Nuclear Research) is buried between Lake Geneva and the Jura mountain range
> When the circular tunnel was excavated, the two ends met up with just one centimetre of error.
> The tunnel has its own fire brigade.
> Protons will travel through the LHC accelerator ring at 99.999 per cent of the speed of light.
> Six hundred million collisions will take place every second as the protons smash into each other.
> Collisions will generate temperatures more than 100,000 times hotter than the sun.
> Each proton moves at a speed equivalent of a family car travelling at 1,056 miles per hour.
Cable used to power the accelerator would stretch round the equator 6.8 times.
> Data recorded in each of LHC's big experiments would fill 100,000 DVDs.
> CERN estimates that just one per cent of data recorded will be useful.
منبع:http://www.myparkmag.co.uk/articles/tel ... chine.html
Large Hadron Collider is today's buzz phrase, so we've decided to give you a few extra special facts about the supposed "Big Bang Machine"...
> The Large Hadron Collider is the biggest machine ever created.
> The 27km long circular tunnel at CERN (European Organization for Nuclear Research) is buried between Lake Geneva and the Jura mountain range
> When the circular tunnel was excavated, the two ends met up with just one centimetre of error.
> The tunnel has its own fire brigade.
> Protons will travel through the LHC accelerator ring at 99.999 per cent of the speed of light.
> Six hundred million collisions will take place every second as the protons smash into each other.
> Collisions will generate temperatures more than 100,000 times hotter than the sun.
> Each proton moves at a speed equivalent of a family car travelling at 1,056 miles per hour.
Cable used to power the accelerator would stretch round the equator 6.8 times.
> Data recorded in each of LHC's big experiments would fill 100,000 DVDs.
> CERN estimates that just one per cent of data recorded will be useful.
منبع:http://www.myparkmag.co.uk/articles/tel ... chine.html
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Re: خبر فوری:LHC تست شد
به این جمله توجه کنید:4duniverse نوشته شده:این آزمایش چه مدت طول می کشه ؟ شبکه ی تلویزیونی نمیشناسید که این رویداد بزرگ به تصویر بکشه ؟
Six hundred million collisions will take place every second as the protons smash into each other.
این فقط یک ازمایش نیست.بزرگترین تجربه علمی بشر خواهد بود.قبلا جایی خواندم برای پوشش دادن اطلاعات فوق العاده زیادی که این ماشین تولید میکند دانشمندان مجبور به پایه گذاری نسل جدید فوق پیشرفته ای از شبکه های رایانه ای شده اند تا بتوانند این حجم از اطلاعات را ذخیره و پردازش کنند.
Re: خبر فوری:LHC تست شد
واقعا عالیه.تا کی اخبارش به صورت تاییدی پخش می شه
این اولین مبحث خبری علمی بود که منو هیجان زده کرد.
این اولین مبحث خبری علمی بود که منو هیجان زده کرد.
Re: خبر فوری:LHC تست شد
امروز برای تمام فیزیک کارها هیجان انگیز بود.مطمئنا اتفاقات و نتایجی که از این شتابدهنده بدست خواهد آمد بسیار هیجان انگیز تر خواهد بود.مونارك نوشته شده:این اولین مبحث خبری علمی بود که منو هیجان زده کرد.
در پست بعد میتونید مهمترین مسائلی که دانشمندان امیدوارند LHC کلید حل آنها باشد را ببینید. در واقع انتظار میرود این شتابدهنده به بنیادی ترین سوالات بشر پاسخ دهد.
Re: خبر فوری:LHC تست شد
واقعا نسل بشر براي اين ازمايش بايد به خود ببالد .
قابل توج دوستان عزيز كه در اين پروژه ايران نيز با فرستادن دانشمندان فيزيك ذرات وهمچنين ساختن ميز شتابدهنده كه ميبايست وزن 200 تا 300 تني را تحمل ميكرد مشاركت داشته اند واين مشاركت از سال 2001 با فرستادن تيمي به ايران آغاز شد .
لازم به ذكر است كه در حال حاضر اقايان دكتر فرهاد اردلان دكتر حسام الدين ارفعي و دكتر منصوري كه هر سه از اساتيد دانشگاه صنعتي شريف و محققان پژوهشگاه ذرات بنيادي هستند به علاوه ي سه دانشجوي دكتراي فيزيك ذرات بنيادي كه هر سه ي انها نيز از دانشگاه صنعتي شريف ميباشند نيز در سرن به سر مي برند.كه اين نيز باعث افتخار ايرانيان هست.
خوشا به حال اونهايي كه در شريف هستند .
اميدوارم خانم ghazalشما هم بتوانيد روزي به اي انجمن بزرگ فيزيك جهان بپيونديد.
من ديشب در سايت هاي خبري ديدم كه نوشته شده بود كه اين ازمايش تا سال 2010 به نتيجه ي مطلوب ميرسد
قابل توج دوستان عزيز كه در اين پروژه ايران نيز با فرستادن دانشمندان فيزيك ذرات وهمچنين ساختن ميز شتابدهنده كه ميبايست وزن 200 تا 300 تني را تحمل ميكرد مشاركت داشته اند واين مشاركت از سال 2001 با فرستادن تيمي به ايران آغاز شد .
لازم به ذكر است كه در حال حاضر اقايان دكتر فرهاد اردلان دكتر حسام الدين ارفعي و دكتر منصوري كه هر سه از اساتيد دانشگاه صنعتي شريف و محققان پژوهشگاه ذرات بنيادي هستند به علاوه ي سه دانشجوي دكتراي فيزيك ذرات بنيادي كه هر سه ي انها نيز از دانشگاه صنعتي شريف ميباشند نيز در سرن به سر مي برند.كه اين نيز باعث افتخار ايرانيان هست.
خوشا به حال اونهايي كه در شريف هستند .
اميدوارم خانم ghazalشما هم بتوانيد روزي به اي انجمن بزرگ فيزيك جهان بپيونديد.
من ديشب در سايت هاي خبري ديدم كه نوشته شده بود كه اين ازمايش تا سال 2010 به نتيجه ي مطلوب ميرسد
زمين گهواره ي بشريت است. ولي هيچ كودكي تا ابد در گهواره نمي ماند.....
Re: خبر فوری:LHC تست شد
Large Hadron Collider: Scientists' wish list for the LHC
From the particle that gives everything its mass, to mini black holes and extra spatial dimensions, the LHC has the potential to make a host of amazing discoveries
When the Large Hadron Collider is up to full power, it will be crashing protons together 600 million times per second. After each impact, giant detectors will scour the subatomic wreckage looking for evidence of new physics.
Scientists have some pretty good hunches about what the machine might find, from creating never-seen-before particles to discovering hidden dimensions and dark matter, the mysterious substance that makes up 25% of the universe.
Supersymmetry
Many physicists believe that deep down, all the forces of nature are linked, including gravity, electromagnetism, the strong force – which binds the constituents of atomic nuclei together – and the weak force – which governs radioactive decay in stars.
One of the most compelling theories that achieves this unification is called supersymmetry, which predicts that every fundamental particle in the universe has an invisible, overweight twin. The theory has spawned a plethora of bizarre names, such as the squark, the twin of the quark, and the photino, the twin of the photon, the stuff of light.
If supersymmetry is real, it could be one of the first discoveries to emerge from Cern.
Dark matter
Astronomers can only see 5% of the matter that makes up the universe, including all of the planets, stars and dust clouds. Of the rest, around 25% is believed to be "dark matter", so called because it does not emit light or any other kind of radiation. Dark matter is thought to stretch throughout the universe like a cosmic skeleton, clustering around galaxies and influencing their movement by exerting a powerful gravitational pull on them.
Scientists are not sure what dark matter is made of, but a leading candidate is called a neutralino, a supersymmetrical particle. So finding neutralinos would not only prove supersymmetry, but could well explain what dark matter is too. These particles could be produced in the first collisions at the LHC.
The Higgs boson (aka the God particle)
Named after Peter Higgs, an Edinburgh University physicist, the Higgs boson is crucial to understanding the origin of mass. Shortly after the big bang, it is thought that many particles weighed nothing, but became heavy later on, thanks to the Higgs field. Cern has hunted for the Higgs particle before and thought they caught a glimpse of it in 2000 with their previous particle collider.
Most physicists believe the LHC will almost certainly find the Higgs boson, but it is likely to take a year or so.
Extra dimensions
Scientists will be astounded if the LHC discovers extra dimensions, but it is a possibility. Theories predict different types of extra dimension, with some coiled up and microscopic, and others stretched over just one millimetre.
Extra dimensions might explain why we feel gravity very weakly. In another dimension, it could be extremely powerful.
Black holes
Some scientists believe that gravity will turn out to be very strong when measured over incredibly small distances. It is possible that the LHC will unleash a burst of strong gravity, and that this could create a ball of incredibly dense matter, a black hole. According to Stephen Hawking, small black holes would evaporate and vanish harmlessly.
Antimatter
The LHC is guaranteed to create antimatter. But more importantly, it will try to explain why almost everything in the universe is made of normal matter and not antimatter. At the beginning of the universe, matter and antimatter were created in equal quantities, but somehow matter got the upper hand.
From the particle that gives everything its mass, to mini black holes and extra spatial dimensions, the LHC has the potential to make a host of amazing discoveries
When the Large Hadron Collider is up to full power, it will be crashing protons together 600 million times per second. After each impact, giant detectors will scour the subatomic wreckage looking for evidence of new physics.
Scientists have some pretty good hunches about what the machine might find, from creating never-seen-before particles to discovering hidden dimensions and dark matter, the mysterious substance that makes up 25% of the universe.
Supersymmetry
Many physicists believe that deep down, all the forces of nature are linked, including gravity, electromagnetism, the strong force – which binds the constituents of atomic nuclei together – and the weak force – which governs radioactive decay in stars.
One of the most compelling theories that achieves this unification is called supersymmetry, which predicts that every fundamental particle in the universe has an invisible, overweight twin. The theory has spawned a plethora of bizarre names, such as the squark, the twin of the quark, and the photino, the twin of the photon, the stuff of light.
If supersymmetry is real, it could be one of the first discoveries to emerge from Cern.
Dark matter
Astronomers can only see 5% of the matter that makes up the universe, including all of the planets, stars and dust clouds. Of the rest, around 25% is believed to be "dark matter", so called because it does not emit light or any other kind of radiation. Dark matter is thought to stretch throughout the universe like a cosmic skeleton, clustering around galaxies and influencing their movement by exerting a powerful gravitational pull on them.
Scientists are not sure what dark matter is made of, but a leading candidate is called a neutralino, a supersymmetrical particle. So finding neutralinos would not only prove supersymmetry, but could well explain what dark matter is too. These particles could be produced in the first collisions at the LHC.
The Higgs boson (aka the God particle)
Named after Peter Higgs, an Edinburgh University physicist, the Higgs boson is crucial to understanding the origin of mass. Shortly after the big bang, it is thought that many particles weighed nothing, but became heavy later on, thanks to the Higgs field. Cern has hunted for the Higgs particle before and thought they caught a glimpse of it in 2000 with their previous particle collider.
Most physicists believe the LHC will almost certainly find the Higgs boson, but it is likely to take a year or so.
Extra dimensions
Scientists will be astounded if the LHC discovers extra dimensions, but it is a possibility. Theories predict different types of extra dimension, with some coiled up and microscopic, and others stretched over just one millimetre.
Extra dimensions might explain why we feel gravity very weakly. In another dimension, it could be extremely powerful.
Black holes
Some scientists believe that gravity will turn out to be very strong when measured over incredibly small distances. It is possible that the LHC will unleash a burst of strong gravity, and that this could create a ball of incredibly dense matter, a black hole. According to Stephen Hawking, small black holes would evaporate and vanish harmlessly.
Antimatter
The LHC is guaranteed to create antimatter. But more importantly, it will try to explain why almost everything in the universe is made of normal matter and not antimatter. At the beginning of the universe, matter and antimatter were created in equal quantities, but somehow matter got the upper hand.
Re: خبر فوری:LHC تست شد
من برروی لوگوی گوگل کلیک کردم و فهمیدم موضوع از چه قراره!
حتما مقاله ی این شتاب دهنده رو در ویکی پدیا بخونید!
از غزل بخاطر اطلاع رسانی خوبشون تشکر می کنم!
حتما مقاله ی این شتاب دهنده رو در ویکی پدیا بخونید!
از غزل بخاطر اطلاع رسانی خوبشون تشکر می کنم!
Re: خبر فوری:LHC تست شد
واقعا باید بشریت افتخار کنه که موفق شده چنین گام بلندی در راه پاسخ به پرسش هاش پیدا کنه...
سایتی نیست که مدام از پیشرفت آزمایش خبر بده؟ واقعا هیجان انگیزه...
سایتی نیست که مدام از پیشرفت آزمایش خبر بده؟ واقعا هیجان انگیزه...
Relativity applies to physics, not ethics
Albert Einstein
Albert Einstein
Re: خبر فوری:LHC تست شد
با سلام،
http://www.lhc.ac.uk/latest-news.html
http://public.web.cern.ch/public/en/LHC/LHC-en.html
سربلند و پیروز باشید همیشه،
کوچکترین شاگرد شما
http://www.lhc.ac.ukLily نوشته شده:سایتی نیست که مدام از پیشرفت آزمایش خبر بده؟ واقعا هیجان انگیزه
http://www.lhc.ac.uk/latest-news.html
http://public.web.cern.ch/public/en/LHC/LHC-en.html
سربلند و پیروز باشید همیشه،
کوچکترین شاگرد شما
Re: خبر فوری:LHC تست شد
ممنونم از شما
The Next Big Bang
Premieres Sunday, March 16th at 8:00pm EST on The History Channel
(Check local listings for other dates and times.)
This year, the largest, most powerful science experiment in history will be turned on. The "Large Hadron Collider" at the CERN laboratory in Geneva Switzerland was the brainchild of some of the greatest minds in modern physics. It cost $10 billion, is 17 miles around and its resulting data has the potential to explain why we and the Universe exist.
Particle physicist David Kaplan guides viewers on an amazing journey involving the struggles to plan and build the LHC, how it was constructed and what are its mechanics. Dive into the history of particle physics and learn how science arrived at the doorstep of unveiling the mysteries of what occurred during first 3 microseconds after the big bang.
This visually compelling documentary will explore some of the most puzzling questions in scientific history. What is dark matter? What are extra dimensions? Will they find the elusive Higgs boson...the god particle?
They may find all the answers at the LHC, or they may find something completely new and unexpected. One thing is certain, whatever the scientists at the LHC discover, it is sure to be the Next Big Bang in physics.
The Next Big Bang
Premieres Sunday, March 16th at 8:00pm EST on The History Channel
(Check local listings for other dates and times.)
This year, the largest, most powerful science experiment in history will be turned on. The "Large Hadron Collider" at the CERN laboratory in Geneva Switzerland was the brainchild of some of the greatest minds in modern physics. It cost $10 billion, is 17 miles around and its resulting data has the potential to explain why we and the Universe exist.
Particle physicist David Kaplan guides viewers on an amazing journey involving the struggles to plan and build the LHC, how it was constructed and what are its mechanics. Dive into the history of particle physics and learn how science arrived at the doorstep of unveiling the mysteries of what occurred during first 3 microseconds after the big bang.
This visually compelling documentary will explore some of the most puzzling questions in scientific history. What is dark matter? What are extra dimensions? Will they find the elusive Higgs boson...the god particle?
They may find all the answers at the LHC, or they may find something completely new and unexpected. One thing is certain, whatever the scientists at the LHC discover, it is sure to be the Next Big Bang in physics.
Relativity applies to physics, not ethics
Albert Einstein
Albert Einstein