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RE: Sunset in the Tyrrhenian Sea (1 SBD quiz inside)
After which Nobel Laureate was the scientific phenomenon named
Venkata Raman. https://en.wikipedia.org/wiki/Raman_scattering
After which Nobel Laureate was the scientific phenomenon named
Venkata Raman. https://en.wikipedia.org/wiki/Raman_scattering
Thank you for participating in this little quiz!
The light scattering that was named after Sir Venkata Raman does occur in the atmosphere, too. However, it's contribution to the red-shift of light observed during sunset (and sunrise) is hardly appreciable (by eye). This effect is mainly caused by the light scattering named after John William Strutt, 3. Baron Rayleigh (<- correct answer).
Both types of scattering are related yet differ in a key aspect. Raman scattering is associated with energy transfer between the photon and the scattering molecule resulting in a shift of the photon's wavelength (or color so to say), whereas Rayleigh scattering only changes the direction of the incoming photon without changing it's energetic state (i.e. color). Light with short wavelengths (perceived as green and blue shades) are scattered more strongly and thus are removed from the incoming sunlight.
I thought you made a typo because that name is so long, but no his name is actually "John William Strutt, 3rd Baron Rayleigh"!
Thanks for the physics insights!
Raman scattering
Raman scattering or the Raman effect is the inelastic scattering of a photon by molecules which are excited to higher vibrational or rotational energy levels.
It was discovered by C. V. Raman and his student K. S. Krishnan in liquids,
and independently by Grigory Landsberg and Leonid Mandelstam in crystals.
The effect had been predicted theoretically by Adolf Smekal in 1923.When photons are scattered from an atom or molecule, most of them are elastically scattered (Rayleigh scattering), such that the scattered photons have the same energy (frequency and wavelength) as the incident photons. A small fraction of the scattered photons (approximately 1 in 10 million) are scattered inelastically by an excitation, with the scattered photons having a frequency and energy different from, and usually lower than, those of the incident photons.
i like ramen. mmm.... ramen... oh... wrong person XD