राष्ट्रीय विज्ञान दिवस  हिन्दी देवनागरी में पढ़ें।

rashtriy vigyan divas
rashtriy vigyan divas pratik chihn 2013
vivaran vigyan se hone vale labhon ke prati samaj men jagarookata lane aur vaigyanik soch paida karane ke uddeshy se rashtriy vigyan evn praudyogiki parishad tatha vigyan evn praudyogiki mntralay ke tatvavadhan men pratyek varsh bharat men 'rashtriy vigyan divas' manaya jata hai.
tithi 28 faravari
uddeshy vidyarthiyon ko vigyan ke prati akarshit v prerit karana tatha janasadharan ko vigyan evn vaigyanik upalabdhiyon ke prati sajag banana hai.
shuruat 28 faravari, 1928 ko raman prabhav ki khoj ki huee. isi upalakshy men bharat men 1986 se har varsh 28 faravari 'rashtriy vigyan divas' ke roop men manaya jata hai.
any janakari vigyan ki lokapriyata ko badhava dene ke lie rashtriy evn doosare puraskaron ki ghoshana bhi ki jati hai. vigyan ki lokapriyata ko badhane ke lie vishesh puraskar bhi rakhe ge hain.

rashtriy vigyan divas (angrezi: National Science Day) vigyan se hone vale labhon ke prati samaj men jagarookata lane aur vaigyanik soch paida karane ke uddeshy se rashtriy vigyan evn praudyogiki parishad tatha vigyan evn praudyogiki mntralay ke tatvavadhan men har sal 28 pharavari ko bharat men manaya jata hai. 28 faravari 1928 ko raman prabhav ki khoj ki huee. isi upalakshy men bharat men 1986 se har varsh 28 faravari 'rashtriy vigyan divas' ke roop men manaya jata hai.

uddeshy

rashtriy vigyan divas ka mool uddeshy vidyarthiyon ko vigyan ke prati akarshit v prerit karana tatha janasadharan ko vigyan evn vaigyanik upalabdhiyon ke prati sajag banana hai. is din sabhi vigyan snsthanon, jaise rashtriy evn any vigyan prayogashalaen, vigyan akadamiyon, skool aur kaaulej tatha prashikshan snsthanon men vibhinn vaigyanik gatividhiyon se snbndhit program ayojit kie jate hain. mahattvapoorn ayojanon men vaigyanikon ke lekchar, nibndh, lekhan, vigyan prashnottari, vigyan pradarshani, seminar tatha sngoshthi ityadi sammilit hain. vigyan ki lokapriyata ko badhava dene ke lie rashtriy evn doosare puraskaron ki ghoshana bhi ki jati hai. vigyan ki lokapriyata ko badhane ke lie vishesh puraskar bhi rakhe ge hain. rashtriy vigyan divas desh men vigyan ke nirntar unnati ka ahvan karata hai.

si. vi. raman dvara 'raman prabhav' ki khoj

1928 men kolakata men bharatiy vaigyanik prophesar chndrashekhar venkat raman ne is din ek utkrisht vaigyanik khoj, jo ‘raman iphekt/raman prabhav’ ke roop men prasiddh hai, ki thi, jisaki madad se kanon ki anavik aur paramanavik snrachana ka pata lagaya ja sakata hai aur jisake lie unhen 1930 men nobel puraskar se sammanit kiya gaya tha. us samay tak bharat ya eshiya ke kisi vyakti ko bhautiki ka nobal puraskar nahin mila tha. avard samaroh men is prabhav ka pradarshan karane raman ne alkohal ka istemal kiya tha. bad men rat ke khane ke dauran jab alkohal pesh ki gee to bharatiy parnparaon ke karan raman ne use hath bhi nahin lagaya.

raman prabhav

raman prabhav ke anusar ekal tarng-dairdhy prakash (monokometik) kiranen jab kisi paradarshak madhyam- thos, drav ya gais men se gujarati hain, tab isaki chhitaraee huee kiranon ka adhyayan kiya jae to usamen mool prakash ki kiranon ke alava sthir antar par bahut kamazor tivrata ki kiranen bhi upasthit hoti hain. in kiranon ko raman-kiranen kahate hain. ye kiranen madhyam ke kanon ke knpan evn ghoornan ki vajah se mool prakash ki kiranon men oorja men labh ya hani ke hone se utpann hoti hain. raman prabhav rasayanon ki anavik snrachana ke adhyayan men ek prabhavi sadhan hai. isaka vaigyanik anusndhan ki any shakhaon, jaise aushadhi vigyan, jiv vigyan, bhautik vigyan, rasayanik vigyan, khagol vigyan tatha doorasnchar ke kshetr men bhi bahut mahattv hai.

raman prabhav ka prayog

dararasal raman prabhav ki khoj ne ainsatain ke us siddhant ko bhi pramanit kar diya jisamen unhonne kaha tha ki prakash men tarng ke sath hi anuon ke gun bhi kuchh had tak pae jate hain.
rashtriy vigyan divas
isase pahale nyootan ne bataya tha ki prakash sirph ek tarng hai aur usamen anuon ke gun nahin pae jate. ainsatain ne isase viparit siddhant diya aur raman prabhav se vah sabit hua. achary narendr dev kaaulej men bhautiki ke prophesar subhash sinh ne kaha,‘padarthon men maujood yaugikon ki anavik aur paramanavik snrachana ka pata chalane ke karan age ki khojon ke marg prashast ho sake isilie raman prabhav apane ap men mahattvapoorn hai.’


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