Entropy - nws ... Lub tswvyim ntawm entropy. Standard entropy

Entropy - ib lo lus uas muaj coob tus tau hnov, tab sis ob peb to taub. Thiab peb yuav tsum lees hais tias ua ntej thaum xaus twb paub lawm cov essence ntawm no phenomenon yog tiag tiag yooj yim. Txawm li cas los, qhov no yuav tsum tsis txhob ntshai peb. Ntau yam uas nyob puag ncig peb, peb, nyob rau hauv qhov tseeb, yuav tau piav xwb superficially. Thiab peb yuav tsis tham txog cov xaav los yog kev txawj ntse ntawm ib tug neeg. Tsis Peb tham txog cov totality ntawm scientific kev txawj ntse nyob rau pov tseg ntawm noob neej.

Loj qag nyob tsis tau tsuas yog nyob rau hauv txoj kev paub ntawm galactic proportions, piv txwv li, nyob rau hauv cov teeb meem ntawm dub qhov thiab wormholes, tab sis hais tias puag ncig peb lossi. Piv txwv li, tseem controversy txog lub cev xwm ntawm lub teeb nyob deb raws li nram no. Thiab leej twg yuav txheeb los ntawm lub tswvyim ntawm lub sij hawm? Tej teeb meem - ib tug ntau ntau yam. Tab sis nyob rau hauv no tsab xov xwm kuv mam li piav qhia txog entropy. Rau ntau xyoo, zaum no tawm tsam nrog lub tswvyim ntawm "entropy". Science News for KIDS thiab physics mus tes hauv tes nyob rau hauv txoj kev tshawb no ntawm no mysterious phenomenon. Peb yuav sim mus nrhiav seb yog dab tsi tau ua lub npe hu mus rau peb lub sij hawm.

Introduction ntawm lub tswvyim nyob rau hauv academia

Lub tswvyim ntawm entropy nyob rau hauv lub cheeb tsam cov kws tshwj xeeb nkag tau ib tug muaj koob German mathematician Rudolf Julius Emmanuel Clausius. Nyob rau hauv tej yam yooj yim cov ntsiab lus, cov paub txog txiav txim siab los nrhiav seb yog dab tsi ua nrog lub zog. Nyob rau hauv kev txiav txim zoo? Muab ua piv txwv, tsis txhob xa mus rau heev heev thwmsim thiab complex kev xav, kev ua lej thiab coj ib tug piv txwv paub rau peb los ntawm lub neej txhua hnub.

Koj yuav tsum muaj zoo paub hais tias thaum koj them, hais tias, ib lub xov tooj txawb roj teeb, tus nqi ntawm lub zog sau nyob rau hauv roj teeb yuav tsum tsawg tau txais los ntawm lub network. Muaj tej yam losses. Nyob rau hauv lub neej txhua hnub peb yuav siv rau nws. Tab sis qhov tseeb hais tias xws li losses tshwm sim nyob rau hauv lwm yam kaw tshuab. Rau daim ntawv thom nug, physicists, qhov no yog ib tug teeb meem loj. Txoj kev tshawb no ntawm no qhov teeb meem thiab ua hauj lwm Rudolf Clausius.

Raws li ib tug tshwm sim, nws coj prelyubopytny fact. Yog hais tias peb, dua, tshem tawm cov nyuab terminology, nws yuav txhais tau hais tias lub entropy - yog qhov txawv ntawm qhov zoo tagnrho thiab lub tiag tiag txheej txheem.

Xav txog tej yam uas koj tau muaj ib tug kav. Thiab koj twb tau txais lub realization ntawm 100 kilograms txiv kab ntxwv qaub nqi 10 MNT ib kg. Muab ib tug cim nyob rau hauv 2 Tug rau lub phaus, koj yuav tau txais los ntawm cov muag khoom ntawm 1200 MNT yuav muab posited nqi mus rau lub neeg muag khoom thiab cia koj tus kheej ib tug profit ntawm ob puas MNT.

Yog li ntawd, nws yog ib tug zoo meej piav qhia txog cov txheej txheem. Thiab tej marketer paub, los ntawm lub sij hawm, yuav muag raws li ib tug tag nrho txiv kab ntxwv qaub, lawv yuav muaj lub sij hawm mus rau qhuav ntawm 15 feem pua. A 20 rau ib xees thiab rot, thiab lawv tau cia li sau tawm. Tab sis qhov no yog ib tug tiag tiag txoj kev.

Yog li ntawd, lub tswvyim ntawm entropy, uas uas qhib kev nyob rau hauv ib tug zauv ib puag ncig, Rudolf Clausius, txhais tias yog cov kev sib raug zoo ntawm ib tug system nyob rau hauv uas lub entropy nce nyob rau hauv lub kub ntawm lub system txheeb ze mus rau tus nqi ntawm meej pes tsawg. Nyob rau hauv qhov tseeb, nws qhia tau hais tias tus nqi ntawm cov khib nyiab (poob) zog.

Tus cim ntsuas lub chaos

Tseem nws yog tau muab ib co kev ntseeg cam hais tias entropy - ib qho kev ntsuas ntawm chaos. Uas yog, yog hais tias peb coj raws li ib tug qauv ntawm kaw tshuab yog feem ntau me nyuam kawm ntawv chav yog tsis ntxuav rau ntawm qhov chaw cov khaub ncaws yuav tsum tau tuab co entropy. Tab sis nws tseem ceeb nyob rau hauv no qhov teeb meem no yog me me. Tab sis, yog hais tias nyob rau hauv tas li ntawd scatter cov khoom ua si, coj paj kws los ntawm lub chav ua noj (ntawm chav kawm, ib tug me ntsis kev puas tsuaj) thiab tawm ib tug mess rau lub rooj tag nrho cov phau ntawv, cov entropy ntawm lub system (thiab nyob rau hauv no xyov cov ntaub ntawv - cov chav tsev) yuav sawv sharply.

complex teeb meem

Entropy teeb meem - heev yooj yim mus piav qhia txog cov txheej txheem. Muaj ntau zaum lawm lub xyoo pua xeem tau pab mus rau txoj kev tshawb no ntawm lub mechanism ntawm nws cov hauj lwm. Ntxiv mus, lub tswvyim ntawm entropy yog siv tsis tau tsuas yog lej thiab physics. Nws kuj yog ib tug zoo-deserved qhov chaw nyob rau hauv lub Science News for KIDS. Ib txhia craftsmen siv nws los piav txawm puas siab puas ntsws dab nyob rau hauv tib neeg kev sib raug zoo. Cia peb pom qhov txawv nyob rau hauv cov lus ntawm peb cov physicists. Txhua yam ntawm lawv qhia cov entropy, rau lwm cov tes, thiab lawv ua ke yuav pab peb los nws ntau coherent daim duab.

pom zoo Clausius

Tsis tus txoj kev hloov los ntawm lub cev thaum tshav kub kub los ntawm ib tug sab kub cev rau ib tug ntau dua.

Xyuas qhov no postulate yog yooj yim. Koj yuav tsis muaj peev xwm sov txias ob txhais tes, hais, khov me ntsis dev raws li koj xav tau nyiam los pab nws. Yog li ntawd peb yuav tau lo nws nyob rau hauv nws xubntiag, qhov twg qhov kub thiab txias yog siab dua li nws yog tam sim no.

pom zoo Thomson

Nws yuav tsis ua lub txiaj ntsim ntawm uas yuav kiag li lub chaw ua hauj lwm vim lub tshav kub, coj los ntawm ib tug lub cev.

Thiab yog hais tias koj heev tsuas, nws txhais tau tias nws yog lub cev yeej los mus tsim ib tug perpetual tsab ntawv tsa suab tshuab. Tsis txhob cia lub entropy ntawm ib tug kaw system.

Boltzmann Adoption

Entropy yuav tsis txo nyob rau hauv ib tug kaw system, uas yog, cov neeg uas tsis tau txais lwm lub zog recharge.

Qhov no formulation tau shaken txoj kev ntseeg ntawm ntau ntawm UFW ntawm cov kev tshawb xav ntawm evolution, thiab yuam kom lawv xav txog cov xub ntiag ntawm lub ntug ib tug ntse Creator. Yog vim li cas?

Vim hais tias lub neej ntawd nyob rau hauv ib tug kaw system, entropy yeej ib txwm tsub kom. Yog li ntawd, exacerbated los ntawm cov chaos. Zoom nws yuav tsuas yuav vim mus rau sab nraud zog recharge. Thiab txoj kev cai no, peb yuav pom txhua txhua hnub. Yog hais tias koj tsis saib xyuas ntawm lub vaj, lub tsev, lub tsheb, thiab hais txog. E., Lawv tsuas yuav puas tsuaj tas lawm.

Nyob rau hauv megamasshtabah peb ntug - yog tseem yog ib tug kaw system. Thiab zaum tau xaus lus tias peb heev hav zoov yuav tsum tau muaj kev cuam tshuam qhov tseeb hais tias qhov chaw no muaj lwm recharge lub hwj chim. Yog li ntawd tsis muaj surprise hnub no uas astrophysicists ntseeg nyob rau hauv Vajtswv.

xub ntawm lub sij hawm

Lwm heev ingenious lus piv txwv txog entropy yuav muaj tuaj raws li cov xub ntawm lub sij hawm. Hais tias yog, tus entropy qhia nyob rau hauv uas cov kev taw qhia yuav tsiv mus nyob rau cov txheej txheem lub cev.

Xwb, nws yog tsis zoo li los mloog cov tawm ntawm gardener, koj yuav xav hais tias lub cheeb tsam rau cov uas nws yog lub luag hauj lwm, yuav tsum ntau yog thiab zoo-groomed. Cia li rov qab - yog hais tias koj tsis ntiav lwm neeg ua hauj lwm, tom qab ib co sij hawm, txawm lub feem ntau zoo nkauj vaj tuaj mus rau desolation.

Entropy nyob rau hauv Science News for KIDS

Nyob rau hauv cov kev qhuab qhia ntawm "Science News for KIDS" entropy yog ib qho tseem ceeb qhia. Nyob rau hauv tej rooj plaub, nws cov nuj nqis muaj feem xyuam rau cov tshuaj.

Leej twg tsis tau pom lub scene ntawm cov zaj duab xis nyob rau hauv uas lub cim yog meej pauv mus rau hauv lub thawv ntawm nitroglycerin, yuav tsum ntshai rau ntxias ib tug tawg ntawm lwj liam ntse zog? Nws yog ib tug yeeb yam pab rau cov hauv paus ntsiab lus ntawm cov entropy nyob rau hauv cov tshuaj. Yog hais tias nws daim duab mus txog ib tug tseem ceeb heev taw tes, nws yuav cov tshuaj tiv thaiv pib, uas tau nyob rau hauv ib qho kev tawg.

Qhov kev txiav txim tsis meej

Feem ntau cov feem ntau cam hais tias entropy - yog lub siab xav mus chaos. Ua tau lo lus "entropy" txhais tau tias txoj siav los yog rotating. Peb twb hais tias nws characterizes qhov kev txiav txim. Heev ntawm nthuav cov nyob rau hauv qhov ntsiab lus teb, lub entropy ntawm cov roj. Wb sim xav txog tej yam yuav ua li cas nws tshwm sim.

Siv ib tug kaw system muaj ob kev cob cog rua ntim, txhua yam uas yog pa. Lub siab nyob rau hauv lub ntim kom txog rau thaum lawv twb nruj nreem interconnected, yog sib txawv. Xav txog tej yam dab tsi tshwm sim nyob rau hauv lub molecular theem, thaum lawv muab tso ua ke.

Cov neeg coob coob ntawm molecules yog nyob rau hauv ntau siab, nws tam sim ntawd khiav mus rau nws cov kwv tij, uas nyob txog thaum heev dawb do. Yog li, lawv tau nce lub siab muaj. Qhov no yuav muab piv rau qhov uas cov dej splashing nyob rau hauv lub chav da dej. Hla dhau mus rau ib sab, nws tam sim ntawd rushes mus rau lwm yam. Ib yam li ntawd, peb molecule. Thiab peb txig cais los ntawm lwm lub hwj, lawv yuav nias lub system raws li ntev raws li tsis mus nrhiav kom tau ib qho zoo heev tshuav nyiaj li cas nyob rau hauv tag nrho cov ntim. Thiab ces, thaum nyob ib ncig ntawm txhua molecule yuav raws nraim tib yam qhov chaw raws li lub nyob sib ze thiab tag nrho tus so. Thiab nws yuav raug ntau tshaj yog entropy nyob rau hauv Science News for KIDS. Rotations thiab transformations tu tsis tseg.

Standard entropy

Zaum tsis tau tso tseg lawv cov me nyuam no yuav los npaj thiab cais txawm mess. Vim hais tias cov entropy nqi yog nyob rau ntawm ib tug plurality yam tej yam kev mob, lub sij hawm "standard entropy" twb qhia. Lub qhov tseem ceeb ntawm cov qauv no yog sau ua ke nyob rau hauv ib tug tshwj xeeb cov lus, ces koj yuav tau yooj yim ua teb thiab daws tau ntau yam daim ntawv thov kev pab raws qib.

Default qhov tseem ceeb ntawm txheej txheem entropy xav tej yam kev mob ntawm siab ntawm ib tug cua thiab ib tug kub ntawm 25 degrees Celsius. Raws li cov kub tsub kom tus nqi kuj yuav tsub kom.

Codes thiab Ciphers

Muaj kuj yog ntaub ntawv entropy. Nws yog tsim los pab nyob rau hauv encrypting cov kho lus. Rau cov lus qhia entropy - yog qhov yuav tshwm ntawm predictability ntaub ntawv. Thiab yog hais tias yooj yim heev cov nqe lus, nws yog yuav ua li cas yooj yim nws yuav ua tau kom keej lub cuam tshuam cipher.

Yuav ua li cas yog nws ua hauj lwm? Thaum xub thawj siab ib muag, nws nkawd hais tias, tsis muaj tab sis yog lwm qhov chaw cov ntaub ntawv kom to taub lub cim lus tsis tau. Tab sis qhov no yog tsis muaj tseeb. Ntawm no los nyob rau hauv qhov yuav.

Xav txog tej yam ib nplooj ntawv nrog ib tug encrypted lus. Koj paub hais tias kev siv ntawm cov Lavxias teb sab lus, tab sis lub cim yog kiag li txawv txawv. Pib qhov twg? Xav: dab tsi yog qhov yuav tshwm hais tias tus tsab ntawv yuav tau raws li nyob rau hauv cov nplooj ntawv no yog "b"? Thiab lub sij hawm rau ntshaus raws li qhov tsab ntawv "o"? System, koj to taub. Xam lub cim uas yog cov feem ntau (thiab yam tsawg kawg yuav - nws yog ib qho tseem ceeb qhia), thiab piv nrog rau peculiarities ntawm cov lus nyob rau hauv uas cov lus tau sau.

Nyob rau hauv tas li ntawd, muaj ntau zaus, thiab nyob rau hauv ib co lus thiab ruaj khov ob peb ua ke ntawm cov tsiaj ntawv. Txoj kev paub no kuj yog siv rau decrypt. Los ntawm txoj kev, qhov no txoj kev yog siv lub npe nrov Sherlock Holmes zaj dab neeg "Lub taug txuj kev nyuaj ntawm lub Dancing txiv neej". Nyob rau hauv tib txoj kev mus ua txhaum cov lis dej num nyob rau hauv lub khiav-mus rau hauv ob ntiaj teb ua tsov ua rog.

Thiab cov ntaub ntawv entropy yog npaj rau kom cov cia siab rau ntawm coding. Vim lub muab cov qauv kev kawm txog zauv yuav tsom xam thiab txhim kho lub tswv yim shifrovschikami xaiv.

Kev sib txuas lus nrog tsaus teeb meem

Theory uas yog tsuas tos yuav paub tseeb hais tias, ib tug ntau. Ib tug ntawm lawv koom lub phenomenon ntawm entropy nrog ib tug raug nyuam qhuav sab tsaus nti teeb meem. Nws hais tias lub poob lub zog yog tsuas hloov dua siab tshiab rau hauv qhov tsaus ntuj nti. Astronomers xav hais tias peb cov ntug xwb 4 feem pua lub caij nplooj zeeg nyob rau hauv cov teeb meem raws li peb paub nws. Thiab lwm yam 96 feem pua yog ua hauj lwm unexplored thaum lub caij - qhov tsaus ntuj nti.

Xws li ib tug lub npe uas nws tau txais vim lub fact tias nws tsis nrog electromagnetic tawg thiab emits nws (raws li tag nrho cov paub txog li lub sij hawm uas cov khoom nyob rau hauv lub ntug). Thiab yog li ntawd, nyob rau ntawm no theem ntawm kev loj hlob ntawm science txoj kev tshawb no uas tsaus nti teeb meem thiab nws cov khoom nws yog tsis tau.