Ukuxinana

Umxholo

• Ingqondo yokomfuziselo ye "dense"
• Ukuxinana kwabemi
• Imizekelo yoxinaniso

Inkqubo ye- mninzi linqanaba lokuxinana kwezinto ezahlukeneyo, ukusukela kule parameter ilinganisa ubungakanani bobunzima obukhoyo ngeyunithi yeyunithi.

Ukuba iphakheji enye ineepellets zeStyrofoam, umzekelo, kunye nepakethi yesibini, enobukhulu obufanayo, iqulethe iithayile zeceramic, kuyacaca ukuba yesibini iya kuba nobunzima obungaphezulu kobokuqala. Ukuxinana yindawo yepropathi evumela ukuba kuchongwe izinto ezahlukeneyo.

Umzekelo, yena khokela Ubuninzi be-11.3 g / cm³, ye ubisi ngu-1.03 g / cm³ kwaye icarbon monoxide, irhasi enetyhefu ebantwini, ingu-0,00125 g / cm nje³. Inkqubo ye- imizimba eqinileyo ikholisa ukuba nobuninzi obuphezulu kunamanzi kwaye zona zinobuninzi obuphezulu kune iigesi.

Iimatrasi zerabha ezenziwe ngogwebu, ezenziwe ngezinto ekuthiwa yipolyurethane okanye ipholiyesta, zinokuba noxinano olwahlukileyo kwaye oku kumisela, ngokuyinxenye, umgangatho kunye nokuqina kwazo. Kule meko, uxinano lwamagwebu lubonakaliswe ngokweekhilogram ngokwe mitha nganye (kg / m)³).

Ubuncinci ubuncinci bokucetyiswa kokwenza oomatrasi Ngu-22 kg / m³, oomatrasi abaxineneyo baba nzima kodwa kuthathwa ngokuba ngcono ukunqanda iingxaki zentlungu ezisezantsi kunye nokuguqa komqolo; ziyomelela ngakumbi.

Inkqubo ye- izinto ezinamatye nezincinci zihlala ziluncedo njenge iqondo lobushushu kunye nesandi. Ezi zinto zihlala zihamba emanzini, njenge-cork okanye iplastiki.

Ingqondo yokomfuziselo ye "dense"

Ngokwandiswa kwale ngcamango yokuxinana komzimba yinto ethiwa ixinene, ngokomfuziselo, nini ifuna ingqwalaselo enkulu okanye uxinzelelo ukuze iqondwe, nokuba kungenxa yokuba kunzima okanye kunzima kangakanani.

Umzekelo, isihloko sihlelwa “njengexineneyo” xa siphikisana; Incwadi okanye imovie ingabizwa ngokuba "yi-dense" okanye "dense" ngale ndlela nayo. Nokuba isifundo sekholeji esifuna ukufundwa okuninzi okanye umgudu wokukhutshwa okanye ukukhumbula ngekhanda kunokuhlelwa ngabafundi "njengobunzima."

Ukuxinana kwabemi

Kwelinye icala, uxinano lwabemi ngu Ingqondo yabantu enika ingxelo inani labantu kwiyunithi nganyeumphezulu, nokuba ngaba ngabantu okanye izilwanyana okanye izityalo.

Imizekelo yoxinaniso

Imizekelo yobunzima obahlukeneyo be izinto zemichiza okanye izinto ezintsonkothileyo, kunye noxinano lwabemi bezixeko:

1. Ubuninzi beNaphtha: 0.70 g / cm³
2. Ubuninzi be-ice (kwi-0 ° C): 0.92 g / cm³
3. Ubuninzi beMercury: 13.6 g / cm³
4. Ubuninzi bematrasi egwebu esemgangathweni: 28 kg / m³
5. Ukuxinana kwabemi beSixeko saseMexico (unyaka ka-2010): abahlali abangama-5862 / km²
6. Ubunzima beplanga yeparaná (eyomileyo): 500 kg / m³
7. Ubuninzi beenkumbi ezimnyama (owomileyo): 800 kg / m³
8. Ukuxinana kwe-helium (irhasi eneebhaluni ezibhabhayo ezinomoya): 0.000178 g / cm³
9. Ubunzima be-uranium: 18.7 g / cm³
10. Ukuxinana kokuphinda kuhlaziye imithi ye-lenga kwihlathi laseAndean-Patagonian: ama-20,000 ukuya kuma-40,000 iisampulu / ngehektare.