“There are ninety-two naturally occurring elements on Earth….“As you might expect, oxygen is our most abundant element, accounting for just under 50 percent of the Earth’s crust, but after that the relative abundances are often surprising. Who would guess, for instance, that silicon is the second most common element on Earth or that titanium is tenth? Abundance has little to do with their familiarity or utility to us.
Many of the more obscure elements are actually more common that the better-known ones.
“Abundance also has little to do with ease of detection. Aluminum is the fourth most common element on Earth, accounted for nearly a tenth of everything that’s underneath your feet, but its existence wasn’t even suspected until it was discovered in the nineteenth century by Humphry Davy, and for a long time after that it was treated as rare and precious. Congress nearly put a shiny lining of aluminum foil atop the Washington Monument to show what a classy and prosperous nation we had become, and the French imperial family in the same period discarded the state silver dinner service and replaced it with an aluminum one. The fashion was cutting edge even if the knives weren’t.
“Nor does abundance necessarily relate to importance. Carbon is only the fifteenth most common element, accounting for a very modest 0.048 percent of Earth’s crust, but we would be lost without it. What sets the carbon atom apart is that it is shamelessly promiscuous. It is the party animal of the atomic world, latching on to many other atoms (including itself) and holding tight, forming molecular conga lines of hearty robustness—the very trick of nature necessary to building proteins and DNA…. Of every 200 atoms in your body, 126 are hydrogen, 51 are oxygen, and just 19 are carbon.
“Other elements are critical not for creating life but for sustaining it. We need iron to manufacture hemoglobin, and with it we would die. Cobalt is necessary for the creation of Vitamin B12. Potassium and a very little sodium are literally good for your nerves. Molybdenum, manganese, and vanadium help you keep your enzymes purring. Zinc—bless it—oxidizes alcohol.
“We have evolved to utilize or tolerate these things—we could hardly be here otherwise—but even then we live within narrow ranges of acceptance. Selenium is vital to all of us, but take in just a little too much and it will be the last thing you ever do.”
Have I convinced you to just go out and get this book for youself?
















































