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Puas yog helium tsuas yog superfluid?

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Puas yog helium tsuas yog superfluid?
Puas yog helium tsuas yog superfluid?

Video: Puas yog helium tsuas yog superfluid?

Video: Puas yog helium tsuas yog superfluid?
Video: Txhob Ca Kuv Tog Ntev Audio & Lyrics by Huab Vwj 2024, Tej zaum
Anonim

Kev ua haujlwm tsis ntev los no ntawm Göttingen tau nthuav tawm cov pov thawj ntseeg siab rau cov dej hauv cov kua hydrogen, tsuas yog kua lwm yam tsis yog helium los nthuav tawm qhov kev coj cwj pwm no.

Yuav ua li cas yog dej super?

Superfluidity yog cov yam ntxwv ntawm kua nrog xoom viscosity uas yog li ntws yam tsis muaj kev poob ntawm lub zog kinetic. Thaum nplawm, ib qho superfluid tsim vortices uas txuas ntxiv tig mus tas li.

Nws puas yog kua?

He kwv dej ntawm xoom kub yog tias qhov siab qis dua 2.5 MPa (kwv yees li 25 cua). Cov kua muaj cov theem hloov mus rau theem superfluid, tseem hu ua He-II, ntawm qhov kub ntawm 2.17 K (ntawm vapor siab).

Puas yog kua nitrogen yog superfluid?

Nws tseem ua kua (txawm tias nws hloov mus rau hauv ib qho superfluid) txawm tias qhov xoom ntawm atmospheric siab, thaum tseem ceeb txhua yam yog cov khoom ntawm cov kub. Cov khoom tsis muaj txiaj ntsig zoo li cov dej txias rau cov laj thawj pom tseeb, yog li cov kua helium tiag tiag yog tib txoj kev xaiv.

Vim li cas helium hloov mus ua ib qho superfluid?

Thaum Helium txias rau qhov tseem ceeb ntawm 2.17 k, cov kua ntom ntom ntag, thiab ib feem ntawm cov kua los ua cov xoom viscosity "superfluid". Nws yog hu ua lambda taw tes vim hais tias cov duab ntawm ib tug tshwj xeeb kub nkhaus yog zoo li ntawd Greek tsab ntawv.

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