"The large-scale homogeneity of the universe makes it very difficult to believe that the structure of the universe is determined by anything so peripheral as some complicated molecular structure on a minor planet orbiting a very average star in the outer suburbs of a fairly typical galaxy."

— Steven Hawking

resonant frequency

Belting Out A Physics Lesson

I heard a story about someone breaking a wine glass with his voice, not the typical opera singer story. Check out the video.