
johnn vee. aine. door

dow. johnn vaine nostrand door (1872-1962) beesavin shatabdi kii shuruat seey madhya taka sakriya ack audyogik rasaayanagya they. unakaa janm 1872 mein newark, nyu jersey mein huaa thaa. unhone rutgers vishvavidyalaya mein bhaag lene seey pahale thomas edison key saath kaam kiya, jahan seey unhone bee. aeye. kii upaadhi praapt kii.aiss. 1894 mein rasayan vigyaan mein.
rasayanik abhiyaantriki key kshetra mein unakaa pramukh yogdan door vargeekaran kaa vikas thaa joe taral mein nilambit maheen thhos padarthon key prithakkaran aur rasayanik upchaar key liye ack vyaavhaarik vidhi bunn gaee. iss takneek kaa upayog maljal upchaar, jall shodhan, gaad hataane kii pariyojanaon, khanijon kii milling aur cheeni utpaadan mein kiya gayaa thaa. unhone 1916 mein dorr company kii sthaapana kii.
1950 key dashak kii shuruat mein, door ney maanaa kii raat mein aur jaba barish, burf yaa kohre seey drishti baadhit hoti haye, tou chaalak rajmargon key beach mein chitrit safed rekhaaon koo galey lagaate hain. dorr kaa maanana thaa kii isase kaee durghatanaaen huin aur rajmargon key baahari kandhon parr ack safed rekha lagaane seey jeevan butch jaayega. dorr ney westchester county, newyork mein rajmarg engineeron koo vakr aur dhaal key saath rajmarg key ack hisse key saath apane siddhant kaa pareekshan karane key liye raaji kiya. durghatanaon mein kamee naatakiya thee aur connecticut mein ack anuvarti pareekshan key samaan parinam they. dodd ney pradarshan key parinamon koo prachaarit karane key liye apani khud kii neenv kaa upayog kiya.
dorr koo 1916 mein franklin sansthaan key johnn scott padak, 1938 mein rasayanik udyog padak aur 1941 mein rasayan udyog kii society dwara perkin padak seey sammaanit kiya gayaa thaa. way kaee pramukh paropkar key labharthi they, saath hii saath unhone apani khud kii daan sanstha, dorr foundation kii sthaapana kii.

