She's Prim's size in diameter. Suzanne Collins
Imagine the inside of St. Peter's in Rome filled with a huge quantity of fibers around a millimeter in diameter that crisscross the building in every direction creating a firm mat – then you have an idea of what the brain looks like when magnified a thousand times. Valentino Braitenberg
I was on par with the Creator of the Universe there in the dark in the cocktail lounge. I shrunk the Universe to a ball exactly one light-year in diameter. Kurt Vonnegut
Carbon nanotubes are amazing because they're really good electrical conductors, yet they are only a few atoms in diameter. You can make transistors out of them in the same way you can with silicon. At Berkeley, we made the narrowest device anybody had ever made. It was basically a single molecule. Paul McEuen
In course sand it may be better to drive a well. Driven wells are usually 2 inches in diameter and less than 30 feet deep. If driving conditions are good, you can drive a 4-inch casing as deep as 50 feet. A driving tool consists of a drive point connected to the lower end of sections or pipe. Ken Kern