2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
László Bíró, tus kws sau ntawv xov xwm Hungarian ntxhov siab los ntawm lub sijhawm uas nws nkim sau cov cwj mem thiab ntxuav cov nplooj ntawv smudged, pom tias inks siv hauv ntawv xov xwm luam ntawv qhuav sai., tawm hauv daim ntawv kom qhuav thiab smudge free.
Leej twg yog tus tsim tus cwj mem tiag tiag?
Kev tsim cov cwj mem ballpoint feem ntau yog muab rau Hungarian-Argentinian inventor László Bíró, uas nws lub npe tau tshoov siab rau txhua lub sijhawm rau cov ballpoints niaj hnub no. Tab sis qhov tseeb, nws yog ntau dua. Ib tug neeg Amelikas, John J Loud, tau txais thawj patent rau tus cwj mem ballpoint rov qab rau xyoo 1888.
Leej twg tsim tus cwj mem rau kev sau ntawv?
Ib tug menyuam kawm ntawv hauv Paris, Romanian Petrache Poenaru tau tsim ib tus cwj mem uas siv lub quill ua tus number case reservoir. Tsoom Fwv Fab Kis patented qhov no nyob rau lub Tsib Hlis 1827. Fountain cwj mem patents thiab ntau lawm ces nce nyob rau hauv 1850s. Thawj patent ntawm tus cwj mem ballpoint tau tshaj tawm thaum Lub Kaum Hli 30, 1888, rau John J Loud.
Tus cwj mem ballpoint twg yog tus smoothest?
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Tus cwj mem twg kav ntev tshaj?
Tus cwj mem siv hauvballpoint cwjmem yog roj raws thiab dries sai dua lwm hom number case. Qhov no txhais tau tias tsawg smudging thaum koj sau ntawv. Txij li tus number case yog tuab, cov cwj mem ballpoint siv tsawg tus cwj mem thaum koj sau, kav ntev dua lwm hom cwj mem.
Pom zoo:
Leej twg tau tuag los ntawm tus tswv tus cwj mem?
Scott Marshall Marshall yeej $100,000 los ntawm qhov kawg thiab tag nrho cov xim. Tragically, Marshall tuag ntawm tus heroin overdose thaum muaj hnub nyoog 41, ib xyoos tom qab yeej. Thaum nws tseem yog tus yeej tsuas yog tuag sai sai tom qab ua yeeb yam ntawm (thiab yeej) qhov yeeb yam, nws tsis yog tus Ink Master nkaus xwb thiaj dhau mus.
Puas tus cwj mem tus cwj mem puas tas sijhawm?
Fountain cwj mem tsis tshua muaj sij hawm. … Koj tuaj yeem paub tus cwj mem tsis zoo los ntawm slime, pwm, lossis ntxhiab tsw phem. Txawm li cas los xij, muaj qhov sib txawv, uas yuav ua rau koj cov inks tshiab tsis kav ntev npaum li lub raj mis uas muaj ntau xyoo lawm.
Qhov txawv ntawm tus cwj pwm tsis zoo thiab tus cwj pwm yuam kev yog dab tsi?
Kev coj cwj pwm tsis zoo, lo lus qhuab qhia ib txwm siv feem ntau yog siv los sau tus cwj pwm phem ntawm tus menyuam uas yuav tsum tau rau txim rau nws. Tus cwj pwm yuam kev, txawm li cas los xij, yog saib ib yam uas yuav tsum tau kho los ntawm kev qhia tsis rau txim.
Leej twg ua tus cwj mem epinephrine?
Lub Yim Hli 2016 ob tus neeg sawv cev hauv Teb Chaws Asmeskas tau nug vim li cas thiaj li muaj tus nqi EpiPen loj heev los ntawm Mylan, cov chaw tsim khoom ntawm EpiPen. Kev txhawj xeeb tshwm sim tias cov tshuaj tsis raug nqi ncaj ncees rau cov neeg mob uas muaj kev tsis haum rau lub neej yam tsis muaj lwm yam kev xaiv.
Tus cwj mem twg sau tau zoo?
Peb pawg xeem tau pom zoo nrog peb cov kws tshaj lij: Universal Jetstream RT yog tus cwj mem zoo tshaj plaws rau feem ntau cov haujlwm sau ntawv txhua hnub. Nws yog smoother los sau nrog ze li ntawm lwm yam ballpoint, thiab nws cov number case ntws tsis muaj blobbing, hla, feathering, los ntshav los ntawm nplooj ntawv.
