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Days in an Year (December (7th :tada: International Civil Aviation Day…
Days in an Year
December
7th :tada: International Civil Aviation Day
Chicago Convention signed
5th :star: World Soil Day
FAO of UN
4th :checkered_flag: Navy Day
launch of Operation Trident by the Indian Navy against Pakistan on 4th December, 1971
played a main role in securing Marine borders of the country
bombing of Karachi Harbour
3rd :silhouettes: International Day of Persons with Disabilities
1st :forbidden: World AIDS Day
November
19th :no_entry: World Toilet Day
Theme :star: Wastewater
14th :!!: World Diabetes Day
UNGA resolution
February
28th
National Science Day
Discovery of Raman Effect by CV Raman
Awarded Nobel Prize for Physics in 1930
inelastic scattering of photon by molecules which are excited to higher vibrational or rotational energy levels
some part of the light beam gets scattered after passing through a transparent medium
Wavelength of scattered wave is different from incident way