Hydrogen alpha is a specific wavelength of visible light at 656.281 nm. A hydrogen atom emits a photon at this specific wavelength when its electron jumps from an excited quantum state or electron shell or energy level of n=3 to a lower level of n=2. Explore what H-alpha is, and how it is applied in astronomy.
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We, humans, feed on plants, animals, and fungi. And boy, we like it fresh, don’t we? In this edition, explore why foods spoil, the process of decomposition, the preservation techniques, and find out how long food can stay unspoiled in a refrigerator.
Explore why no two snowflakes are unique and learn how they are formed in the clouds from water vapour, dust, and cold air.
It took me this long to own back my privacy and boredom. Here are my thoughts and insights about the modern internet as an everyday internet user.