L-arginine is a chemical building block called an amino acid. It is obtained from the diet and is necessary for the body to make proteins. L-arginine is found in red meat, poultry, fish, and dairy products. It can also be made in a laboratory and used as medicine. L-arginine is used for heart and blood vessel conditions including congestive heart failure (CHF), chest pain, high blood pressure, high cholesterol, heart surgery, recovery after heart transplant, heart attack, and coronary artery disease.
NECCO WafersÂ®. In 1847, a young English immigrant and progressive thinker, Oliver Chase, invented the first American candy machine, a lozenge cutter. After a period of initial success selling his exciting new candy, he joined forces with brother, Silas Edwin, and founded Chase and Company, the pioneer member of the NECCO family.
I've just found a short article by Martha Davidson that pretty well captures the process by which a new gadget first comes into existence, and then into use. It's about the flexible soda straw. The story begins in 1936. Two-year-old Julia Friedman is at a soda fountain counter, trying to sip her drink through a straw that extends too far above the glass. She tries bending the straw, but now it kinks shut and won't let any liquid through.