Cov kav dej
Copper Fact 1
Archaeologists tau rov qab tau ib feem ntawm cov kav dej los ntawm Pyramid ntawm Cheops hauv Egypt. Cov tubing tooj liab siv tau pom nyob rau hauv kev pabcuam tom qab ntau tshaj 5,000 xyoo.
Copper Fact 2
Qee lub sij hawm nyob ib puag ncig xyoo 1927, cov tuam txhab hlau tau tshaj tawm ib hom tshiab ntawm lub teeb yuag tsis tau siv lub raj tooj liab uas tuaj yeem ua tau sai sai ua ke nrog cov khoom siv tooj liab pheej yig. Qhov no revolutionized kav dej thiab teeb tsa tus qauv rau hom dej hauv tsev hauv tsev niaj hnub no.
Copper Fact 3
Txij li thaum xyoo 1963, qee qhov 35 billion feet lossis txog 6.6 lab mais ntawm cov raj tooj liab tau raug teeb tsa hauv Asmeskas cov tsev. Qhov ntawd yog qhov sib npaug rau lub kauj qhwv ncig lub ntiaj teb ntau dua 260 zaug.
Copper Fact 4
Ib daim ntawv thov tseem ceeb rau tooj liab tubing yog roj roj. Ntau cov neeg tsim vaj tsev tau txhim kho cov kab hluav taws xob siab niaj hnub no, thiab cov raj tooj liab yog qhov kev xaiv pheej yig tshaj plaws rau kev sib txuas cov khoom siv xws li roj ncu, qhov chaw, khaub ncaws ziab khaub ncaws, dej rhaub dej, qhov cub thiab barbecues sab nraum zoov rau cov khoom siv roj av lossis propane.
Copper Fact 5
Hauv av, cov twj siv hluav taws xob sib pauv ncaj qha tuaj yeem siv hluav taws xob hauv tsev los ntawm ntau npaum li 75 feem pua. Tsis zoo li lwm cov twj siv hluav taws xob, qhov kev sib pauv ncaj qha tau txais txiaj ntsig los ntawm kev muaj nws cov khoom siv hluav taws xob sib hloov nruab nrab (cov tub yees) circulating los ntawm kev kaw cov voj voog me me ntawm cov raj me me tooj liab faus rau hauv lub ntiaj teb, qhov chaw kub ib txwm nyob ib puag ncig 55 degrees Fahrenheit, txawm tias lub caij ntuj no. huab cua.
