Mössbauer effect

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Recoilless emission and recoilless absorption of gamma photons is called Mossbauer effect. It provides us a technique for producing and studying gamma rays whose energies are extremely well defined. Mossbauer effect was discovered by Rudolf Mossbauer in 1958. This effect is applied in the experimental field by the name Mossbauer spectroscopy. Let us first understand why a  nuclear transitions  occurs. After a radioactive nucleus undergoes decay (alpha decay, beta decay, k-capture) it many times reaches to the daughter nuclei state but contains too much energy to be in a final stable state. Unlike our electrons orbiting the nucleus, the nucleus itself doesn’t really have such orbits which are easy to visualize. So, let us just imagine it having a particular quantized energy. Now, to be in a stable ground state it must lose this extra energy. It does this by emitting gamma radiation of that energy. This is the process of nuclear transition, where the nucleus transitions from one

Welcome to Crash Course astronomy.

Crash Course series has a new surprise for us. Not alone but along with astronomer Phil Plait.

CrashCourse is a YouTube channel which produces various videos regarding topics like ecology, history and biology. Hank Greene hosts science topics and John Greene hosts mostly humanitarian topics.
And now Phil Plait will be teaching us astronomy through crash course astronomy series available on YouTube which will be premiering on 15 Jan. Phil Plait is said to cover the basic topics like planets, naked eye sky viewing, eclipses, universe, etc.
Happy learning! 

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