Geek Fact for March 27th
In 1845, scientist Wilhelm Roentgen (Röntgen) was born. He is best known for discovering x-rays. He called them x-rays because ‘x’ is the mathematical symbol for ‘unknown’. The first x-ray he took was of his wife’s hand, shown here. Learn more at http://www.historylearningsite.co.uk/wilhelm_roentgen.htm