Hearing
Unlike light waves, sound waves do not travel in a vacuum, as in outer space….
Vision
The eye is literally our window on the world. Through this amazing adaptation, we are…
Strange Beasts: Sea Angel
Sea angels (clade Gymnosomata) are a large group of extremely small, swimming sea slugs. They are found…
My Nomination For Strangest Musical Instrument
The Marble Machine! It contains 2,000 stainless steel marbles. Mesmerizing. Check it out.
Lichen
The colorful growths appearing on some rock surfaces are living organisms composed of a fungus…
The Piano
The Piano is a keyboard musical instrument having wire strings that vibrate when struck by…
The Cello
Cello, also called violoncello, is a stringed bass musical instrument of the violin group. It has four strings and…