Affecting as many as 40 million adults in the US, tinnitus is a ringing, roaring, or hissing sound in one or both ears without an external cause. The condition can be either objective or subjective. Objective tinnitus involves sounds that both patient and doctor can hear and is usually caused by turbulent blood flow through malformed vessels, tumors, or rhythmic muscular spasms. Most tinnitus cases, however, are subjective, meaning they involve sounds heard only by the patients. What causes it?
Back in the day
Jamestown was the first permanent English settlement in the New World. It was founded by the London Company on a peninsula—now an island—in the James River and named after the reigning English monarch, James I. Disease, starvation, and Native American attacks wiped out most of the colony, but the London Company continually sent more men and supplies. A successfully exported strain of tobacco was cultivated there by a colonist named John Rolfe, who later married what Native American princess?
Born on a day like today
Auger was a French physicist who worked in the fields of nuclear and atomic physics and also advanced the study of cosmic rays. He directed the mathematical and natural sciences department at UNESCO from 1948 to 1959 and was instrumental in creating the European Organization for Nuclear Research (CERN). In 1977, he was made a member of the French Academy of Sciences. The Auger effect as well as the world's largest detector of what are named after him?