Meet Dave. He is made of things, as are you and I
Our bodies are comprised of a vast array of elements, with oxygen, carbon, hydrogen, and nitrogen remaining the most abundant. But there are many other chemical elements present, all contributing to our health and longevity. The nifty figure above lists each element that has been isolated from the human body in the order of decreasing mass.
This chart is based on the work of Ed Uthman, who derived the data from The Elements, by John Emsley.
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Types of galaxies according to the Hubble classification scheme.
An E indicates a type of elliptical galaxy; an S is a spiral; and SB is a barred-spiral galaxy.
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May 14, 1973: SKYLAB, America’s first space station is launched into orbit.
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Japanese night with Tom at Miki in Ann Arbor! Mhmmm my vegetarian rolls were so yummy.
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