Large Hadron Collider

[ntt]

SKU Relax - a fost formulat intentionat, probabil ca nu ai vazut padurea de pomi sau esti prea incordat.

[SKU]

Ma scuzi ntt nu am zis-o cu rautate probabil eram incordat ca vad ca niciunul nu are idee cam care-i motivul la toata treaba asta insa toti citeaza Wikipedia si vin cu scenarii apocaliptice, oricum nu e vorba neaparat de situatia de fata ci de fiecare data se intampla acelasi lucru, si toti ajuta putin cate putin la prostirea populatiei.

[OntZ]

@cosu:Printre care si sora unei colege de munca lucreaza la CERN trebe sa imi vina niste poze daca e o sa le postez.

Nu e vb de a distruge Pamantul sau nu si nu cred ca esti in masura sa numesi idioti pe oamenii care au niste retineri... nu stiu ma intreb daca cunosti ce inseamna 7 TeV... oricum o sa fie foarte interesant de urmarit ceea ce se intampla pe parcurs.. si care sunt datele...pana atunci ... o sa vedem

 

 

stiu eu ce inseamna 7TeV......

 

aproximativ 11.214*10e-7 Jouli.... ceea ce la nivel subatomic e imens, dar la nivel macroscopic e infim...

[apocalipsa]

mai e 2 ore

[Faust]

la revedere prieteni

[John Petrecce]

Fratilor, nu sunt perioculoase gaurile negre microscopice, se evapora prin radiatie Hawking cat ai zice peste. Sa va faceti griji de Strangelets si Vacuum Metastability Event, alea ar fi periculoase si sunt sanse destul de mari sa se formeze strange matter (habar n-am cum se spune in romana). Aia e mai stabila ca materia normala si tot ce atinge transforma in acelasi tip de materie, si prin reactie in lant s-ar transforma toata planeta. The end. Cat despre evenimentul de metastabilitate, valeu, se distruge universul complet. Coliziunile de particule pe care vor sa le faca la LHC au loc la ordinea zilei peste tot in Univers, inclusiv in zona Terrei, la energii MULT mai mari, si nu s-a intamplat nimic.

 

Dar oricum, nu pot sa-mi imaginez un mod mai marfa de a muri.

 

Frate esti "dus"...

[soiuz]

Va dati seama ce r fi fost daca LHD ar fi fost construit in Romania? Ce festival cu mici, bere, Voltaj, Directia 5 si Aurel Tamas ar fi fost la deschidere!!! Toti romanii ar fi prins sfarsitu' lumii muci ...!!!

[vektor]

stiu eu ce inseamna 7TeV......

 

aproximativ 11.214*10e-7 Jouli.... ceea ce la nivel subatomic e imens, dar la nivel macroscopic e infim...

 

Random answer T=10E+12 pastrand notatia ta.

Si nu s 7 sunt peste 40 [nu stiu exact cat, dar LHC e mai mare decat SSC, care a rulat la 40]

 

Einiweiz, de ce nu am murit inca ? Sau s-a intamplat asa de repede ca nici nu ne-am dat seama ?

[Faust]

care mai esti viu?

[soiuz]

care mai esti viu?

 

eu cred ca is ok...

cred ca am probleme cu webcam-ul

 

[Demos]

a trecut ? eu nu aveam net

[soiuz]

tocmai am facut o poza ciudata...

wtf is going on?

 

[TiTi]

The scientists are trying to create a black ho ... not a black hole! God damn media got it all wrong

[gadjo]

tinand cont ca vine sfarsitul lumii imi puteti trimite mie chitarile, amplificatoarele si efectele voastre. din lipsa de spatiu prefer sa incepeti cu cele peste 500 de coco. mersi

[/dev/null]

Va dati seama ce r fi fost daca LHD ar fi fost construit in Romania? Ce festival cu mici, bere, Voltaj, Directia 5 si Aurel Tamas ar fi fost la deschidere!!! Toti romanii ar fi prins sfarsitu' lumii muci ...!!!

 

 

Genial! Multumesc!

[/dev/null]

Check this out: http://news.bbc.co.uk/2/hi/science/nature/7607145.stm

[John Petrecce]

tinand cont ca vine sfarsitul lumii imi puteti trimite mie chitarile, amplificatoarele si efectele voastre. din lipsa de spatiu prefer sa incepeti cu cele peste 500 de coco. mersi

 

Io ma pregateam sa ti le trimit; cand colo vad ca am scapat cu viata si cu acelasi nr. de gauri...

Deci m'am razgandit

[soiuz]

has the large hadron collier destroyed the world yet?

 

http://hasthelargehadroncolliderdestroyedtheworldyet.com/

[Razvan S.]

Cool

[archDude]

God: 10-20%. More likely than stable black holes, but still a long shot. pfaaaaaaaahahah =)))

[Faust]

Cool

 

E, asa mai zic si eu

[Geiger]

http://xs331.xs.to/xs331/08373/2u4sld0429.jpg

[OntZ]

Random answer T=10E+12 pastrand notatia ta.

Si nu s 7 sunt peste 40 [nu stiu exact cat, dar LHC e mai mare decat SSC, care a rulat la 40]

 

Einiweiz, de ce nu am murit inca ? Sau s-a intamplat asa de repede ca nici nu ne-am dat seama ?

 

 

1 eV=1.602*10e-19 jouli, inmultesti cu Tera, aduni 12 la -19 si da -7

 

oricum, 7 TeV e energia cinetica la care e accelerat fiecare proton in parte, deci normal ca adunat da mult mai mult

[soiuz]

1 eV=1.602*10e-19 jouli, inmultesti cu Tera, aduni 12 la -19 si da -7

 

oricum, 7 TeV e energia cinetica la care e accelerat fiecare proton in parte, deci normal ca adunat da mult mai mult

 

Gresit!!!

In physics, the electron volt (eV) is a unit of energy. By definition, it is equal to the amount of energy gained by a single unbound electron when it accelerates through an electrostatic potential difference of one volt. In SI units, it is the number which measures the charge of the electron with the unit changed from C to J.1 eV = 1.602 176 53(14)×10−19 J. [1]So an electron volt (electronvolt according to the NIST is 1 volt ( 1 joule / 1 coulomb ) multiplied by the electron charge ( 1.602 176 53(14)×10−19 coulomb ).The electron volt is now accepted within SI[2]. It is the most common unit of energy within physics, widely used in solid state, atomic, nuclear, and particle physics, often with SI prefixes milli, kilo, mega, giga, tera, or peta (meV, KeV, MeV, GeV, TeV and PeV respectively).In chemistry, it is often useful to have the molar equivalent, that is the kinetic energy that would be gained by a mole of electrons passing through a potential difference of one volt. This is equal to 96.48538(2) kJ/mol. Atomic properties like the ionization energy are often quoted in electron volts.As a unit of mass

By mass-energy equivalence,

the electron volt is also a unit of mass. It is common in particle

physics, where mass and energy are often interchanged, to use eV/c², or more commonly simply eV with c set to 1, as a unit of mass.

For example, an electron and a positron, each with a mass of 0.511 MeV, can annihilate to yield 1.022 MeV of energy. The proton has a mass of 0.938 GeV, making a GeV a very convenient unit of mass for particle physics.

 

1 GeV = 1.783×10−27 kg

 

The atomic mass unit, 1 gram divided by Avogadro's number, is almost the mass of a hydrogen atom, which is mostly the mass of the proton. To convert to MeV，use the formula:

 

1 amu = 931.4 MeV = .9314 GeV1 MeV = 1.074·10-3 amu

 

In some older documents, and in the name Bevatron, the symbol "BeV" is used, which stands for "billion-electron-volt"; it is equivalent to the GeV.

Since MeV as a unit is often used in nuclear energy equations, for example as in the stellar nuclear fusion process of carbon burning, among others the equation

 

 

 

 

12C + 12C

→

20Ne + 4He + 4.617 MeV

 

 

 

As a unit of energy

For comparison:

1 TeV: about the energy of motion of a flying mosquito[3].210 MeV: average energy released in fission of one Pu-239 atom.200 MeV: total energy released in nuclear fission of one U-235 atom (on average; depends on the precise break up); this is 82 TJ/kg, or twenty thousand tonnes of TNT equivalent per kilogramme.17.6 MeV: total energy released in fusion of deuterium and tritium to form helium-4 (also on average); this is 0.41 PJ/kg of product produced.13.6 eV: energy required to ionize atomic hydrogen. Molecular bond energies are on the order of an eV per molecule.1/40 eV: the thermal energy at room temperature. A single molecule in the air has an average kinetic energy 3/80 eV.

Conversion factor:

1 eV per amu is 96.5 MJ/kg

 

[edit] Relation to units of time and distance

In particle physics, a system of units in which the speed of light c and the reduced Planck constant are dimensionless and equal to unity is widely used: .

In these units, both distances and times are expressed in inverse

energy units (while energy and mass are expressed in the same units,

see Mass–energy equivalence). In particular, particle scattering lengths are often presented in units of inverse particle masses.

Outside this system of units, the conversion factors between electronvolt, second, and nanometer are the following:[4]

= 6.582 118 99(16) x 10-16 eV s; = 197.326 9631(49) eV nm (or MeV fm).

The above relations also allow expressing the mean lifetime τ of an unstable particle (in seconds) in terms of its decay width Γ (in eV) via . For example, the B0 meson has a mean lifetime of 1.542(16) picoseconds, or a decay width of 4.269(44) x 10-4 eV, and its mean decay length is cτ = 462 μm.

 

[edit] As a unit of temperature

In certain fields, such as plasma physics, it is convenient to use the electronvolt as a unit of temperature. The conversion to kelvins (symbol: uppercase K) is defined by using kB, the Boltzmann constant:

For example, a typical magnetic confinement fusion plasma is 15 keV, or 174 megakelvins.[edit] Photon propertiesThe energy E, frequency f, and wavelength λ of a photon are related bywhere h is Planck's constant and c is the speed of light.For example, the spectrum of visible light consists of wavelengthsranging from 400 nm to 700 nm. Photons of visible light therefore haveenergies ranging fromto.An electron volt is also the energy of an infrared photon with awavelength of approximately 1240 nm. Similarly, 10eV would correspondto ultraviolet of wavelength 124 nm, and so on.An Internet troll, or simply troll in Internet slang, is someone who posts controversial and irrelevant or off-topic messages in an online community, such as an online discussion forum or chat room, with the intention of provoking other users into an emotional response[1] or to generally disrupt normal on-topic discussion.[2]Etymology

The contemporary use of the term is alleged to have first appeared on the internet in the late 1980s[3], but the earliest known example is from 1991[4]. It is thought to be a truncation of the phrase trolling for suckers, itself derived from the fishing technique known as trolling.[5] The word also evokes the trolls portrayed in Scandinavian folklore

and children's tales; they are often obnoxious creatures bent on

mischief and wickedness. The verb "troll" originates from Old French

"troller", a hunting term. The noun "troll", however, is an unrelated

Old Norse word for a giant or demon. [6]

 

[edit] Early history

Prior to DejaNews's archiving of Usenet,

accounts of trolling were sketchy, there being little evidence to sort

through. After that time, however, the huge archives were available for

researchers. The most likely derivation of the word troll can be found

in the phrase "trolling for newbies," popularized in the early 1990s in

the Usenet group, alt.folklore.urban (AFU).[7][8]

Commonly, what is meant is a relatively gentle inside joke by veteran

users, presenting questions or topics that had been so overdone that

only a new user would respond to them earnestly. For example, a veteran

of the group might make a post on the common misconception that glass flows over time.

Long-time readers would both recognize the poster's name and know that

the topic had been done to death already, but new subscribers to the

group would not realise, and would thus respond. These types of trolls

served as a Shibboleth

to identify group insiders. This definition of trolling, considerably

narrower than the modern understanding of the term, was considered a

positive contribution.[9][7] One of the most notorious AFU trollers, Snopes,[7] went on to create his eponymous urban folklore website.

By the late 1990s, alt.folklore.urban had such heavy traffic

and participation that trolling of this sort was frowned upon. Others

expanded the term to include the practice of playing a seriously

misinformed or deluded user, even in newsgroups where one was not a regular; these were often attempts at humor rather than provocation. In such contexts, the noun troll usually referred to an act of trolling, rather than to the author.

 

[edit] Identity trolling

In academic literature, the practice was first documented by Judith Donath (1999), who used several anecdotal examples from various Usenet newsgroups in her discussion. Donath's paper outlines the ambiguity of identity in a disembodied "virtual community":[10]

 

 

In the physical world there is an inherent unity to the self, for

the body provides a compelling and convenient definition of identity.

The norm is: one body, one identity. ... The virtual world is

different. It is composed of information rather than matter.

 

 

Donath provides a concise overview of identity deception games which trade on the confusion between physical and epistemic community:

 

 

Trolling is a game about identity deception, albeit one that is

played without the consent of most of the players. The troll attempts

to pass as a legitimate participant, sharing the group's common

interests and concerns; the newsgroups members, if they are cognizant

of trolls and other identity deceptions, attempt to both distinguish

real from trolling postings, and upon judging a poster a troll, make

the offending poster leave the group. Their success at the former

depends on how well they — and the troll — understand identity cues;

their success at the latter depends on whether the troll's enjoyment is

sufficiently diminished or outweighed by the costs imposed by the group.

 

 

 

 

Trolls can be costly in several ways. A troll can disrupt the

discussion on a newsgroup, disseminate bad advice, and damage the

feeling of trust in the newsgroup community. Furthermore, in a group

that has become sensitized to trolling — where the rate of deception is

high — many honestly naïve questions may be quickly rejected as

trollings. This can be quite off-putting to the new user who upon

venturing a first posting is immediately bombarded with angry

accusations. Even if the accusation is unfounded, being branded a troll

is quite damaging to one's online reputation." (Donath, 1999, p. 45)[1]

 

 

 

[edit] Usage

Application of the term troll is highly subjective. Some readers may characterize a post as trolling,

while others may regard the same post as a legitimate contribution to

the discussion, even if controversial. The term is often used to

discredit an opposing position, or its proponent, by argument fallacy ad hominem.

Often, calling someone a troll makes assumptions about a writer's

motives. Regardless of the circumstances, controversial posts may

attract a particularly strong response from those unfamiliar with the

robust dialogue found in some online, rather than physical,

communities. Experienced participants in online forums know that the

most effective way to discourage a troll is usually to ignore him or

her, because responding tends to encourage trolls to continue

disruptive posts — hence the often-seen warning: "Please do not feed

the trolls".[11]

Frequently, someone who has been labelled a troll by a group may

seek to redeem their reputation by discrediting their opponents, for

example by claiming that other members of the group are closed-minded,

conspirators, or trolls themselves.

Recently, many websites have openly welcomed and encouraged trolling amongst their members.[12]

 

 

[edit] Concern troll

A concern troll is a false flag pseudonym created by a user whose actual point of view is opposed to the one that the user's sockpuppet

claims to hold. The concern troll posts in web forums devoted to its

declared point of view and attempts to sway the group's actions or

opinions while claiming to share their goals, but with professed "concerns". The goal is to sow fear, uncertainty and doubt within the group.[13]

For example, in 2006 Tad Furtado, a top staffer for then-Congressman Charlie Bass (R-NH), was caught posing as a "concerned" supporter of Bass's opponent, Democrat Paul Hodes, on several liberal New Hampshire

blogs, using the pseudonyms "IndieNH" or "IndyNH." "IndyNH" expressed

concern that Democrats might just be wasting their time or money on

Hodes, because Bass was unbeatable.[14]

A recently declassified World War II

manual on sabotage recommends such techniques to derail any effective

action: "Advocate 'caution.' Be 'reasonable' and urge your

fellow-conferees to be 'reasonable' and avoid haste which might result

in embarrassments or difficulties later on... Be worried about the

propriety of any decision — raise the question of whether such action

as is contemplated lies within the jurisdiction of the group or whether

it might conflict with the policy of some higher echelon." [15]

Although the term "concern troll" originated in discussions of

online behavior, it now sees increasing use to describe similar

behaviors that take place offline.

For example, James Wolcott in Vanity Fair[16] accused a conservative New York Daily News columnist of "concern troll" behavior in his efforts to downplay the Mark Foley scandal. Wolcott links what he calls concern trolls to Saul Alinsky's "Do-Nothings," giving a long quote from Alinsky on the Do-Nothing's method and effects:

These Do-Nothings profess a commitment to social change for

ideals of justice, equality, and opportunity, and then abstain from and

discourage all effective action for change. They are known by their

brand, 'I agree with your ends but not your means.'

In a more recent example, The Hill

published an op-ed piece titled "Dems: Ignore 'Concern Trolls'." Again,

the concern trolls in question were not Internet participants; they

were Republicans offering public advice and warnings to the Democrats.

The author defines "concern trolling" as "offering a poisoned apple in

the form of advice to political opponents that, if taken, would harm

the recipient."

 

^QED

[Guest costi iorga]

Sunt de acord cu necesitatea(?) teoretica a acestui experiment: gasirea bosonului Higgs, crearea unor conditii ca la "big bang" pt a intelege mai bine materia, justificarea unor premii Nobel, etc...

Ce nu prea inteleg eu: care este necesitatea PRACTICA a experimentului? Ce ne va aduce in mod nemijlocit (sau cel putin intr-un viitor previzibil) acest experiment?

[soiuz]

Sunt de acord cu necesitatea(?) teoretica a acestui experiment: gasirea bosonului Higgs, crearea unor conditii ca la "big bang" pt a intelege mai bine materia, justificarea unor premii Nobel, etc...

Ce nu prea inteleg eu: care este necesitatea PRACTICA a experimentului? Ce ne va aduce in mod nemijlocit (sau cel putin intr-un viitor previzibil) acest experiment?

 

http://www.humanitas.ro/carti/colectie.php...ience%20masters

Daca esti la fel de lovit in debla ca mine si nu ai ce face cu cateva milioane...

In general imi place mai mult fizica decat matematica dar http://www.humanitas.ro/carti/carte.php?id=2017 face banu'

In carte apare un exemplu care da raspuns la eterna intrebare legata de scopul practic cercetarii stiintifice:

 

Prin secolul XV cativa oameni au inceput sa studieze vibratiile corzii de vioara... dupa vreo 200 de ani au inceput sa apara primele formule care explica matematic miscarea corzii... Euler a elaborat ecuatia de unda (care deriva din legile miscarii ale lu' Newton) si a rezolvat-o... Bernoulli a rezolvat si el ecuatia da altfel iar astia 2 au inceput sa se certe cativa ani pana au generalizat formula... Pe fundal alti cetini ca Galvani, Volta, Faraday au inceput sa se joace cu electricitatea si magnetismul (regele catre Faraday: la ce sunt bune experimentele tale? Faraday: nu stiu dar sigur o sa le impozitati odata) iar prin 1860 Maxwell a definitivat legile electromagnetismului.

Iar aici apare faza misto: cu ce seamana ecuatiile lui Maxwell? Daca ai zis "ecuatia de unda" BINGO.

Fara Maxwell nu am avea radio, comunicatii, chitari electrice , teoria relativitatii, cuantica, LHD.

Iar fara niste imbecili care s-au apucat sa studieze de nebuni fara nici o utilitate practica vibratiile corzii de vioara nu am avea ecuatiile lui Maxwell pentru ca, fara o intelegere prealabila a conceptului de unda (Euler and shit...), sunt ata de complexe si abstracte incat nimeni nu ar sti de unde sa inceapa in a le elabora.

[AnalogSound]

excelent post domnule soiuz foarte bine zis +1

[soiuz]

excelent post domnule soiuz foarte bine zis +1

 

10x

[karpi]

Va dati seama ce r fi fost daca LHD ar fi fost construit in Romania? Ce festival cu mici, bere, Voltaj, Directia 5 si Aurel Tamas ar fi fost la deschidere!!! Toti romanii ar fi prins sfarsitu' lumii muci ...!!!

 

Da , stim precis .

 

NU se finaliza nicodata ,hahaha , insa se scoteau toti bani pe protocol .Si pe raza de 27Km apareau vile cu multe turnulete .

 

Sa vezi ce de zburdau protoni , electroni, pozitroni, si eltoni in Ferrari .Se mai intampla cate o colliziune.

 

Restul de bani disparea in gaura neagra foarte stabila din economia originala.

Din aceasta cauza s-au cooptat multi savanti romani ca sa ajute crearea gaurilor negre.

 

Modelul cred ca s-a exportat cu succes .Cheltuie si internationali de rup pamantul cu gaurile negre, acum vor sa creeze materia neagra ca sa demonstreze ca radiatia cosmica provine de la BigBang si nu de la Big Ben.

 

In loc sa verifice si sa infirme sau sa confirme superstitii din secolul XVII prin experiente si cercetari mult mai necostisitoare se reproduce Mini Bang ,Dar e proiect mare si e bani multi .Deci si retributie direct proportionala cu "valoarea" proiectului .E ! Cand ceva are valoare capata si importanta.

In loc sa "schimbe directia" in fizica se mentin dogmele din sec XVII, convenabile, bazate pe erori si iaca asa se mai scot niste bani pe project-e .

 

Si sa vezi ce se linisteste lumea cand in sfarsit se va demonstra ipoteza SF despre BB .pana si curentul sifonat se va netezi .

 

Baieti mai au niste restante ce nu vor sa le studieze si sa le puna pe masa , diferenta intre Gravitatie si Electromagnetism ,Atractia universala?.

Nu prea se decurca fizicistii. Dar au o gandire foarte pozitronistica cand miros feromoni de $$$.si incep sa se zburde intr-o miscare Gaussiana pana erodeaza tot monetarul.

 

Asa ca agricultori vor putea sa doarma linistiti daca se demonstreaza ca materia neagra este produsul BB , se va ieftini motorina tractoarele vor avea ca si combustibil gauri negre.( daca bne gandim bine si acum au acelasi combiustibil deci care-i progresul?)

[apocalipsa]

ce ne va aduce este in principiu sa aflam unde este restul de univers nedetectat. cunoscatorii stiu... adik e ca si cum ai fi tu da iti lipsesc cateva membre de care tu nu stiai ca le ai dar fara de care nu ai fi complet.)))

 

era fain daca vbeam cu astia la cern sa dea o conferinta din 10 in 10 minute. sau ma car sa posteze pe tube: we love rgc:))) rgc+cern=love