A440, also known as Stuttgart pitch, is the musical pitch corresponding to an audio frequency of 440 Hz. This pitch standard is crucial for tuning musical instruments, particularly the note A above ...

I’ve spent the last week listening to out-of-tune music. Or maybe I’ve been listening to out-of-tune music all my life without realizing it. Yes, it’s possible. A small cadre of disgruntled listeners ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...