राष्ट्रीय विज्ञान दिवस
| chitr:Icon-edit.gif | is lekh ka punarikshan evan sampadan hona avashyak hai. ap isamean sahayata kar sakate haian. "sujhav" |
28 pharavari hamare desh mean rashtriy vijnan divas ke roop mean manaya jata hai. rashtriy vijnan divas ka mool uddeshy vidyarthiyoan ko vijnan ke prati akarshit v prerit karana tatha janasadharan ko vijnan evan vaijnanik upalabdhiyoan ke prati sajag banana hai. is din sabhi vijnan sansthanoan, jaise rashtriy evan any vijnan prayogashalaean, vijnan akadamiyoan, skool aur k aaulej tatha prashikshan sansthanoan mean vibhinn vaijnanik gatividhiyoan se sanbandhit program ayojit kie jate haian. vijnan ki lokapriyata ko badhava dene ke lie rashtriy evan doosare puraskaroan ki ghoshana bhi ki jati hai. rashtriy vijnan divas desh mean vijnan ke nirantar unnati ka ahvan karata hai.
1928 mean kolakata mean bharatiy vaijnanik prophesar chandrashekhar veankat raman ne is din ek utkrisht vaijnanik khoj, jo ‘raman iphekt/raman prabhav’ ke roop mean prasiddh hai, ki thi, jisaki madad se kanoan ki anavik aur paramanavik sanrachana ka pata lagaya ja sakata hai aur jisake lie unhean 1930 mean nobel puraskar se sammanit kiya gaya tha. us samay tak bharat ya eshiya ke kisi vyakti ko bhautiki ka nobal puraskar nahian mila tha. avard samaroh mean is prabhav ka pradarshan karane raman ne alkohal ka istemal kiya tha. bad mean rat ke khane ke dauran jab alkohal pesh ki gee to bharatiy paranparaoan ke karan raman ne use hath bhi nahian lagaya.
raman iphekt ke anusar ekal tarang-dairdhy prakash (monokometik) kiranean jab kisi paradarshak madhyam- thos, drav ya gais mean se gujarati haian, tab isaki chhitaraee huee kiranoan ka adhyayan kiya jae to usamean mool prakash ki kiranoan ke alava sthir aantar par bahut kamajor tivrata ki kiranean bhi upasthit hoti haian. in kiranoan ko raman-kiranean kahate haian. ye kiranean madhyam ke kanoan ke kanpan evan ghoornan ki vajah se mool prakash ki kiranoan mean oorja mean labh ya hani ke hone se utpann hoti haian. raman prabhav rasayanoan ki anavik sanrachana ke adhyayan mean ek prabhavi sadhan hai. isaka vaijnanik anusandhan ki any shakhaoan, jaise aushadhi vijnan, jiv vijnan, bhautik vijnan, rasayanik vijnan, khagol vijnan tatha doorasanchar ke kshetr mean bhi bahut mahattv hai.
dararasal raman prabhav ki khoj ne ainsatain ke us siddhaant ko bhi pramanit kar diya jisamean unhoanne kaha tha ki prakash mean tarang ke sath hi anuoan ke gun bhi kuchh had tak pae jate haian. isase pahale nyootan ne bataya tha ki prakash sirph ek tarang hai aur usamean anuoan ke gun nahian pae jate. ainsatain ne isase viparit siddhaant diya aur raman prabhav se vah sabit hua.
achary narendr dev k aaulej mean bhautiki ke prophesar subhash sianh ne kaha,‘padarthoan mean maujood yaugikoan ki anavik aur paramanavik sanrachana ka pata chalane ke karan age ki khojoan ke marg prashast ho sake isilie raman prabhav apane ap mean mahatvapoorn hai.’ kiro dimal k aaulej mean bhautik shastr ke prophesar agam kumar jha ne bataya ki 28 pharavari 1928 ko raman prabhav ki khoj ki huee. isi upalakshy mean bharat mean 28 pharavari vijnan divas ke roop mean manaya jata hai.
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