Dab tsi yog xoom xoom thiab vim li cas thiaj hu ua li ntawd?
Dab tsi yog xoom xoom thiab vim li cas thiaj hu ua li ntawd?

Video: Dab tsi yog xoom xoom thiab vim li cas thiaj hu ua li ntawd?

Video: Dab tsi yog xoom xoom thiab vim li cas thiaj hu ua li ntawd?
Video: zoo nyob tag npaum no xoom ceev2 kom phev los tso mam saib seb yog leej twg 2024, Kaum ib hlis
Anonim

Tsis muaj tseeb yog -273.15 degrees Celsius, -459.67 degrees Fahrenheit, thiab 0 Kelvin. Thiaj hu vim tias nws yog lub ntsiab lus ntawm qhov tseem ceeb ntawm cov xwm txheej muaj qhov kev vibrational tsawg tsawg, khaws cia tsuas yog quantum mechanical, xoom -point zog-induced particle motion.

Ib yam li ntawd, nws yog nug, koj txhais li cas los ntawm qhov tsis muaj tseeb?

Tsis muaj tseeb yog qhov ntsuas kub qis tshaj plaws uas tsis muaj dab tsi yuav txias dua thiab tsis muaj lub zog cua sov nyob hauv cov khoom. Los ntawm kev pom zoo thoob ntiaj teb, tsis muaj tseeb yog txhais raws li qhov tseeb; 0 K ntawm Kelvin nplai, uas yog ib qho thermodynamic ( kiag li ) kub scale; thiab -273.15 degrees Celsius ntawm qhov ntsuas Celsius.

Kuj Paub, qhov piv txwv ntawm qhov tsis muaj tseeb yog dab tsi? Tsis muaj tseeb yog sib npaug rau 0 ° K, -459.67 ° F, lossis -273.15 ° C. Thaum kub nce mus txog tsis muaj tseeb , cov yam ntxwv ntawm lub cev ntawm qee yam tshuaj hloov pauv loj heev. Rau piv txwv , qee yam khoom hloov ntawm hluav taws xob insulators mus rau conductors, thaum lwm tus hloov los ntawm conductors mus rau insulators.

Tom qab ntawd, ib tug kuj yuav nug, puas yog Zero Possible?

Tsis muaj tseeb tsis tuaj yeem ua tiav, txawm tias nws yog ua tau kom ncav cuag qhov kub thiab txias ze nws los ntawm kev siv cov cryocoolers, dilution tub yees, thiab nuclear adiabatic demagnetization. Kev siv laser txias tau ua kom kub tsawg tshaj li ib billionth ntawm ib kelvin.

Yuav ua li cas tshwm sim ntawm qhov tsis muaj tseeb?

Tsis muaj tseeb yog qhov kub ntawm qhov uas cov khoom ntawm teeb meem (molecules thiab atoms) yog nyob ntawm lawv cov ntsiab lus qis zog. Qee tus neeg xav tias ntawm tsis muaj tseeb particles poob tag nrho lub zog thiab nres txav. Yog li ntawd, ib qho tsis tuaj yeem nres kiag li vim tias tom qab ntawd nws txoj haujlwm thiab lub zog yuav raug paub.

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