Duke Rupert's Dutch kua muag
Duke Rupert's Dutch kua muag

Video: Duke Rupert's Dutch kua muag

Video: Duke Rupert's Dutch kua muag
Video: The Ninth Commandment: Albright/ New Hope UM Church Live Service 06/06/2021 2024, Kaum ib hlis
Anonim

Yog hais tias koj tso molten iav rau hauv dej txias, nws yuav solidify nyob rau hauv daim ntawv ntawm lub kua muag nrog ib tug ntev, nyias tail. Yog tias koj rhuav tshem tus Tsov tus tw ntawm lub khob kua muag, nws yuav tawg tam sim ntawd, tawg cov hmoov av zoo tshaj iav nyob ib ncig ntawm nws.

iav kua muag tau tsim nyob rau hauv lub teb chaws Yelemees nyob rau hauv 1625. Nyob rau hauv lub xyoo pua 17th, nws tau ntseeg hais tias iav kua muag tau invented nyob rau hauv Holland, yog li ntawd lawv pib incorrectly hu ua "Dutch".

Nyob rau hauv teb chaws Aas Kiv, iav kua muag tau nto moo ua tsaug rau British Duke Rupert ntawm Palatinate. Nws tau nthuav qhia lawv rau Vaj Ntxwv Charles II, uas, dhau los, tau nthuav tawm rau Royal Scientific Society rau kev tshawb fawb. Hauv kev hwm ntawm duke, iav kua muag pib hu ua "Rupert's drops." Tus txheej txheem ntawm kev ua Duke Rupert cov tee tau khaws cia rau lub sijhawm ntev. Lawv raug muag rau txhua tus, zoo li cov khoom ua si lom zem.

Niaj hnub no lub mechanism ntawm Dutch kua muag "ua hauj lwm" tau raug kawm kom meej. Yog hais tias molten iav nkag mus rau hauv dej txias, nws sai sai solidifies, txhim kho cov neeg kho tshuab tsis txaus ntseeg. Cia peb conditionally xaiv txheej txheej thiab lub hauv paus core nyob rau hauv lub poob. Lub ncoo txias los ntawm qhov chaw, thiab nws txheej txheej yog compressed thiab txo nyob rau hauv ntim, thaum lub hauv paus tseem yog kua thiab kub.

Duab
Duab

Tom qab qhov kub hauv lub pob poob qis, cov tub ntxhais yuav pib ntsws. Txawm li cas los xij, cov txheej txheem uas twb muaj lawm yuav tiv thaiv cov txheej txheem. Nrog kev pab los ntawm intermolecular rog ntawm attraction, nws tenaciously tuav lub nucleus, uas, thaum txias, yog yuam kom nyob rau hauv ib tug loj ntim tshaj yog hais tias nws txias dawb do.

Yog li ntawd, lub zog yuav tshwm sim ntawm tus ciam teb ntawm txheej txheej thiab cov tub ntxhais, rub cov txheej sab hauv sab hauv, tsim kom muaj kev ntxhov siab hauv nws, thiab cov tub ntxhais sab hauv sab nraud, tsim tensile stresses nyob rau hauv nws. Cov voltages no tseem ceeb heev thaum txias ceev heev. Yog li ntawd sab hauv ntawm lub pob tuaj yeem tawg tawm ntawm sab nraud, thiab tom qab ntawd muaj npuas tsim nyob rau hauv cov tee dej.

Yog tias qhov kev ncaj ncees ntawm txheej txheej ntawm cov teardrop raug ua txhaum, ces lub zog ntawm qhov nro yuav raug tso tawm tam sim ntawd. Lub solidified iav droplet nws tus kheej muaj zog heev. Nws yooj yim withstands rauj tshuab. Txawm li cas los xij, yog tias koj tawg nws tus Tsov tus tw, nws tawg sai heev uas nws zoo li ntau dua li iav tawg.

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