References in periodicals archive ?
In 1669-1670, the Frenchman Jean Picard was able accurately to measure the size of the earth by extrapolating from the distance of one degree of latitude measured in the French countryside.
Cassini was interested in the true size and shape of Earth, and he continued Jean Picard's geodetic effort to establish the accurate length of an arc of longitude from the English Channel through Paris Observatory to the Mediterranean.
Anniversaries: 1620: Birth of French astronomer Jean Picard; 1796: Death of Scottish poet Robert Burns; 1897: Tate Gallery opened in London; 1884: Lord's Cricket Ground staged its first Test match when England played Australia; 1899: Birth of American no velist Ernest Hemingway: 1969: American astronaut Commander Neil Armstrong became the first man to land on the moon.