What is an Astrolabe ? To answer this question in simple language was Geoffrey Chaucer's (astronomer-poet) chief object. He wrote his "Treatise on the Astrolabe" in 1387 for little Lewis, his lo-yea……続きを見る
Geoffrey Chaucer, born in London most likely around 1340, was an English poet, author, philosopher, scientist, diplomat and politician. He has been called the “father of English literature”, or, alt……続きを見る
