Monday, July 5, 2021

What is an Octave?

Watch the video (1.50 min.). Wavelength is the key. Distance. Frequency. Hertz. Sine function. Maths.

No wonder geniuses are in music and maths. There are the same, hertz speaking!

That is why Quranic recital has a calming effect. 


Youtube

 C major scale letter notation

Source: Masterclass

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Sinkhole - A Natural Depression

Sinkhole is a natural depression. Sinkholes are all about water.  Image: WaterMatters.org Image: CartoonStock

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