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In the spotlight this week: the magic of #superconductivity.

The Large Hadron Collider (#LHC) is the biggest application of superconductivity in the world.

This phenomenon was discovered in 1911: below a very low critical temperature, some materials lose all of their electrical resistance. This makes superconductors a vital ally for particle physics:
- When resistance falls to zero, a current can circulate inside the material without any dissipation of energy.
- A coil made from superconducting material can produce stronger #magnetic fields than resistive electromagnets. This property is of particular interest to particle #physicists. In circular accelerators like the LHC, particles are kept in their orbits by a magnetic field: the higher the energy of the particles, the stronger the field needs to be.

More information: http://cern.ch/go/zc9l

Yesterday marked the start of the 13th European Conference on Applied Superconductivity, #EUCAS2017.

Image © #CERN

Explicando mi ciencia, pero esta vez a los que saben mucho más que yo #LT28 #Superconductivity #Conference #PhDLife #PosterSession

Sending some granite to the granite graveyard. Six foot by twelve foot surface plate. Built a lot of magnets on this plate. Got to make room for the new. #standrige #berkeleylab #superconductivity

Straight up Hogwarts today in science class. #science #physics #liquidnitrogen #superconductivity

卒論発表終了!
春休み☀みんな遊んで👏
#graduationthesis
#superconductivity

It's that time of the year again 🤓 #superconductivity #ethz #physics

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In the spotlight this week: the magic of #superconductivity.

The Large Hadron Collider (#LHC) is the biggest application of superconductivity in the world.

This phenomenon was discovered in 1911: below a very low critical temperature, some materials lose all of their electrical resistance. This makes superconductors a vital ally for particle physics:
- When resistance falls to zero, a current can circulate inside the material without any dissipation of energy.
- A coil made from superconducting material can produce stronger #magnetic fields than resistive electromagnets. This property is of particular interest to particle #physicists. In circular accelerators like the LHC, particles are kept in their orbits by a magnetic field: the higher the energy of the particles, the stronger the field needs to be.

More information: http://cern.ch/go/zc9l

Yesterday marked the start of the 13th European Conference on Applied Superconductivity, #EUCAS2017.

Image © #CERN

Poloidal field coils are made of six to nine circular conductor arrangements (called "double pancakes") that are insulated, resin-impregnated, stacked together and compressed.

Following the fabrication of a real-size dummy, workers have now wound and insulated the first of the eight double pancakes needed for poloidal field coil #5 (PF5), a coil that measures 17 metres in diameter and that—when finished—will weigh 340 tonnes.

The first production double pancake has been placed in a staging area so that additional activities can be carried out (the addition of terminations, the brasing of the intra-pancake joint, and additional insulation) before it passes on to the resin-impregnation phase. In the meantime, back at the winding table, the fabrication of a second double pancake has already started. Before being wound into turns with specific dimensions, the conductor is wrapped with insulating tape.

#iter #iterorganization #itertokamak #nuclearfusion #magnets #winding #superconductor #superconductivity #insulatingtape #inprogress #seriesproduction #manufacturing #wearebuildingatokamak #science #researchproject

Poster presentation : Let's go NANO!!
ps: don't know to pose. Definitely not a model!!
#superconductivity #stm #nano #physics #EUCAS #geneva #thankfull

Getting ready for my talk tomorrow afternoon here in Geneva #eucas #hypres #superconductivity #theoreticalphysics #crycooler #babyitscoldinside #coolestcompany

John Bardeen, the only person to be awarded the Nobel Prize in Physics twice, in a conversation with Dr. Isidor. I. Rabi who received the Physics Prize 1944 "for is resonance method for recording the magnetic properties of atomic nuclei" and German theoretical physicist Werner Heisenberg (Physics 1932). John Bardeen was jointly awarded his first Prize in 1956 for discovering the transistor effect: Amplifying electric signals proved decisive for telephony and radio. First, electron tubes were used for this. To develop smaller and more effective amplifiers, however, it was hoped that semiconductors could be used - materials with properties between those of electrical conductors and insulators. Quantum mechanics gave new insight into the properties of these materials. In 1947 John Bardeen and Walter Brattain produced a semiconductor amplifier, which was further developed by William Shockley. The component was named a "transistor". Nobel Prize in Physics 1972: When certain metals are cooled to extremely low temperatures, they become superconductors, conducting electrical current entirely without resistance. Based on quantum mechanics, John Bardeen, Leon Cooper, and Robert Schrieffer formulated a theory for the phenomenon in 1957. At extremely low temperatures, the interaction between electrons and atoms in the metals' crystalline structure causes the electrons to pair up with one another. As a result, their movement becomes orderly, unlike the random movement at normal temperatures, and electrical resistance disappears.

Photo: Dutch National Archives, The Hague. Fotocollectie Algemeen Nederlands Persbureau (ANEFO), 1945-1989. Unknown photographer, Wikimedia commons

#NobelPrize #Science #Physics #universityofillinois #Heisenberg #superconductivity #transistor

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