Cov txheej txheem:

Robert Kearn tau txais lub tswv yim ntawm kev sib tshuam wipers nyob qhov twg?
Robert Kearn tau txais lub tswv yim ntawm kev sib tshuam wipers nyob qhov twg?

Video: Robert Kearn tau txais lub tswv yim ntawm kev sib tshuam wipers nyob qhov twg?

Video: Robert Kearn tau txais lub tswv yim ntawm kev sib tshuam wipers nyob qhov twg?
Video: להיות איש - שיעור תורה מפי הרב יצחק כהן שליט"א / Rabbi Yitzchak Cohen Shlita Torah lesson 2024, Kaum ib hlis
Anonim

Tsis tu ncua wipers

Kearns tau lees tias qhov kev tshoov siab rau nws qhov kev tsim tawm los ntawm qhov xwm txheej ntawm nws hmo hmo nyob rau xyoo 1953, thaum qhov tsis zoo champagne cork tua rau hauv nws lub qhov muag sab laug, ua rau nws raug cai hauv qhov muag

Tsuas yog li ntawd, leej twg invented intermittent wipers?

Robert Kearns

Ib yam li ntawd, puas yog Ford tau nyiag cov dej so tsis tu ncua? ncua- wiper inventor yeej nplua tawm tsam Ford . DETROIT -Cov Ford Motor Co tau ua txhaum ntawm tus neeg tsim khoom Robert Kearns 'patents rau tsis tu ncua daim iav wipers , tsoomfwv txiav txim plaub ntug txiav txim rau lub lim tiam dhau los. Kearns tau tsim "blinking" cov wipers hauv nws qab daus.

Hauv qhov no, thaum twg yog lub tshuab nqus dej tsis tu ncua tau tsim?

1969

Dab tsi yog wiper tsis tu ncua?

Ib qho raug wiper tswj kav. Feem ntau cov wipers muaj qhov qis thiab nrawm, nrog rau ib qho tsis sib xws kev teeb tsa. Thaum lub cov wipers yog nyob rau qis thiab siab ceev, lub cav khiav tsis tu ncua. Tab sis hauv tsis sib xws setting, cov cov wipers nres ib ntus ntawm txhua qhov so.

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