Sam Kean

The price of diamonds can vary greatly depending on size, cut, color, and other factors, including whether they have a history. But because of the rarity of blue boron diamonds, they often fetch more money than gems of similar quality.

Even fictional characters sometimes receive unwarranted medical opinions. Doctors have diagnosed Ebenezer Scrooge with OCD, Sherlock Holmes with autism, and Darth Vader with borderline personality disorder.

I don't write directly on to the computer because I don't think well facing forward with fingers on a keyboard. I think better looking down holding a pen. And the concentration quotient of pen and paper is higher than when I'm moving words around on screen.

What do cells do when they see a broken piece of DNA? Cells don't like such breaks. They'll do pretty much anything they can to fix things up. If a chromosome is broken, the cells will repair the break using an intact chromosome.

Our chemical and other manufacturing concerns are all too often ready to let the Germans have Latin American markets, provided the American companies can work out an arrangement which will enable them to charge high prices to the consumer inside the United States.