Companies offer a new memento for those in grief: Turning remains into diamonds

December 16, 2013
The family jewels
Turning dead people into diamonds. Seriously.
Business Insider

You’ve heard of heirloom jewelry. The idea takes on a whole new meaning when you turn the cremated remains of your loved one into a piece of jewelry.

Algordanza, based in Switzerland, is one of several companies that transform human remains into diamonds. Business Insider science blogger Kelly Dickerson heard about the idea in a movie and talked to Algordanza about how the process works.

Diamonds are essentially carbon that has been subjected to intense heat and pressure. The human body is about 18 percent carbon. A cremated human body produces about five pounds of ashes. Algordanza needs a little more than a pound of those ashes to separate out a big-enough sample that is at least 99 percent carbon. The remains are put in a chamber where the pressure reaches about six gigapascals (that is, 60,000 times the pressure of the Earth’s atmosphere) and the temperature gets to about 2,700 degrees.

After about a week, according to chief technical officer Frank Ripka, you get a diamond.

No price was given, but “beware,” Dickerson warns, “the diamond-making process isn’t cheap.” It is, however, a little creepy.

Food
Curds and whey are fine, but why is an important person called a ‘big cheese’?
“The Science of Cheese” by Michael H. Tunick

If it’s important to understand the things we love, we ought to start studying cheese. It’s one of Americans’ favorite foods, and it’s getting more popular every year: Per capita consumption has nearly tripled since 1970. Michael Tunick, a research chemist with the Department of Agriculture, has written a book with more information about the history, biology, chemistry, physics, nutrition and even climatology involved in cheese than even the most avid turophile is likely to want.

How did humans come to invent cheese? Most probably, enzymes in the sheep stomachs in which ancient nomads carried milk caused the milk to separate into curds and whey, and the curds turned out to have a bland but agreeable flavor and a pleasant texture. Why does Swiss cheese have holes? They’re the carbon dioxide bubbles made when a subspecies of the Propionibacterium freudenreichii bacterium metabolizes the milk’s lactic and propionic acids. How big should those holes be? About a quarter-inch, by USDA standards.

The book veers from technical (diagrams of protein molecules, details on volatile compounds) to entertaining (in 1841, the Uruguayan navy used wax-coated spheres of Edam as cannonballs, reportedly with some success). It even includes a tongue-in-cheek Periodic Table of the Cheeses, with No. 1 hydrogen replaced by havarti.


Everything you wanted to know about cheese. (Bigstock)

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