Chemist Community

Koj yuav tsum paub

Txawm tias ib tug kws tshuaj tsis tuaj yeem suav tau cov ntsiab lus qab zib hauv koj qhov luag...( kho dua lawm )

Cyril Percy Callister - Tus tsim Vegemite!!

📍 Box Hill Cemetery. Melb Australia. Cyril Percy Callister (1893 – 1949) yog ib tug kws tshuaj thiab kws thev naus laus zis zaub mov hauv Australia uas tsim tawm Vegemite yeast spread. Tsis tas li Vegemite, nws tseem paub txog nws cov kev pab cuam rau cheese processed. Callister tuag ntawm nws... read more

Tsis phem. Kuv tau qeb 99th ob peb lub caij dhau los thiab 4th thoob ntiaj teb rau chemist. T3 arena. Nws muaj kev lom zem tab sis nws tsis muaj cov chaw.

Hnub No hauv Keeb Kwm - Kaum Ob Hlis 12, 1909

Kaum Ob Hlis 12, 1909 OTD Hauv Germany, tus kws tshuaj Fritz Hofmann (Daim duab) thov ntawv rau ib qho patent rau txoj kev tsim khoom ntawm rubber synthetic uas ua tiav thawj zaug. "Ib txoj kev rau kev npaj rubber artifisial" tau piav qhia txog txoj kev polymerization kub ntawm isoprene ntawm qhov... read more

Cov khau nraug uas lawv muag ntawm lub khw tshuaj ntawm no saib zoo heev. 🙃🙃

Nws tau hlub ib tug kws tshuaj, lawv txoj kev tshuaj yog tsis muaj kev tsis pom. 👊😂😎