Soham wrote:
I did this a lot as a kid, I would sit and humm various frequencies.
Wow.. I forgot that I did that too. I was especially taken by natural harmonics, like in a small room where the room would hum back at you. I enjoyed finding the note for a small room, and once found I would hum it for a while. I think it made my mother giggle. Gawd, it just reminded me of Sheldon finding the "sweet spot" in a cinema. lol
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I'm not blind to your facial expression - but it may take me a few minutes to comprehend it.
A smile is not always a smile.
A frown is not always a frown.
And a blank look rarely means a blank mind.