Earthsky Tonight—March 9: Ancient eye test relied on

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Look back to “this chart”  for more about how to recognize the Big and Little Dippers on these almost-spring evenings. The ancient eye test for those wishing to join the Roman army was administered using stars in the handle of our modern-day Big Dipper. If you passed, you got a job as an archer. If you failed, you had to serve in another capacity … perhaps as a cook. It is said that sultans of the past also tested their ... Full Story