"Cavendish à la Carl Sagan. caged in a Dandelion Clock. "

Carl Sagan (1934-1996) was an American astronomer and science writer who became world famous through his thirteen part television documentary Cosmos: A Personal Voyage. Broadcast initially in 1980 it has been watched by over 500 million people in over 60 countries. In his rather poetic introduction he plucks a dandelion from a rock and blows it skywards, inviting us to 'explore the cosmos in a ship of the imagination, unfettered by ordinary limits on speed and size, drawn by the music of cosmic harmonies...perfect as a snowflake, organic as a dandelion seed.'