- Hydrus /ˈhaɪdrəs/ is a small constellation in the deep southern sky. It was one of twelve constellations created by Petrus Plancius from the observations of Pieter Dirkszoon Keyser and Frederick de Houtman and it first appeared on a 35-cm (14 in) diameter celestial globe published in late 1597 (or early 1598) in Amsterdam by Plancius and Jodocus Hondius. The first depiction of this constellation in a celestial atlas was in Johann Bayer’s Uranometria of 1603. The French explorer and astronomer Nicolas Louis de Lacaille charted the brighter stars and gave their Bayer designations in 1756. Its name means “male water snake”, as opposed to Hydra, a much larger constellation that represents a female water snake. It remains below the horizon for most Northern Hemisphere observers.
- Hedy Lamarr (german-way.com)
Hedwig Eva Maria Kiesler (1914-2000) was born in Vienna in the year that the First World War began (9 November 1914). Later known as the screen star Hedy Lamarr, the clever Austrian would play an interesting off-screen role as an inventor in the Second World War – on the side of her adopted US homeland. This is just one of many facts that make Lamarr’s biography quite unlike that of most film stars.