După ce au inventat hârtia acum aproape 2.000 de ani, chinezii au dezvoltat acum o versiune îmbunătăţită a acestui material.
O echipă de cercetători de la Institutul de Ceramică din Shanghai a prezentat hârtia rezistentă la apă şi foc. Nici petele provocate de lichide precum cafeaua sau ceaiul nu sunt o problemă pentru aceasta, potrivit Go4it.
Mai mult, noul tip de hârtie rezistă la temperaturi de până la 200 de grade Celsius. Totodată, materialul poate fi curăţat cu apă fără ca scrisul de pe el să se deterioreze.
Noul tip de hârtie este realizat din nanofibre de hidroxipatit, o formă de calciu care se găseşte în oase şi dinţi. Hârtia este de obicei fabricată din pulpă lemnoasă.
Hârtia a fost inventată de chinezi în jurul anului 105. Abia în secolul 11 acest meşteşug a ajuns şi în Europa. În secolul 16, hârtia a început să fie confecţionată, printr-un procedeu mai simplu, din pulpă lemnoasă, fapt care a dus la răspândirea mai rapidă a cunoştinţelor în lume.
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