The Description of the Human Body He believed the heat of the heart somehow caused all movement of the body. Blood vessels he realized were pipes, he saw that veins carried digested food to the heart. (This was brought further by William Harvey. Harvey developed the idea of the circulation of the blood.) Descartes felt that an energetic part of blood went to the brain and there gave the brain a special type of air imbued with vital force that enabled the brain to experience, think and imagine. This special air then went through the nerves to the muscles enabling them to move. The Description of
Doctor Who and the Daleks in the Seven Keys to Doomsday the universe with the help of their crab-like slaves, the Clawrantulars. The play was directed by Mick Hughes and written by Terrance Dicks, former script editor for the Doctor Who television series. Dicks would later use some of the plot elements in his Fourth Doctor story "The Brain of Morbius". The play was actually titled "Seven Keys to Doomsday" but the additional wording regarding Doctor Who and the Daleks came into common usage due to its prominence on promotional material. In December 1981, the Buxton Drama League staged a production at the Buxton Opera House in the United Kingdom, starring