Before we get into what this installation is all about, here are some interesting facts you may not have known about pencils: there’s absolutely no risk of lead poisoning if you stab yourself with a pencil because it contains no lead – just a mixture of clay and graphite; graphite is a crystallized form of carbon that was discovered near Keswick, England, in the mid-16th century. An 18th-century German chemist, A. G. Werner, named it, from the Greek graphein, “to write.” Continue reading for more.