J. C. Coleman J. C. Coleman John (Jack) Cristopher Coleman (died 20 April 1971) was a respected Irish geographer, archaeologist, speleologist and mountaineer. He devoted much of his life to the study of the caves of Ireland, the product of which were his many contributions to scientific journals in Ireland and the United Kingdom, his founding of the Speleological Society of Ireland and the publishing of his book, "The Caves of Ireland". His dedication to the exploration of Irish caves and highly respected articles published both nationally and abroad were pivotal in boosting the study of speleology in Ireland during the mid to
Exploration Earth: The Time Machine BBC Radio 4. "Exploration Earth: The Time Machine" was released on CD, paired with "Genesis of the Daleks", in 2001. It was also given away on its own as a free CD with the 28 April 2010 edition of "The Daily Telegraph" newspaper via WHSmith. It was re-released on CD in The BBC Radio Episodes but this time paired with What Happened to...Susan?, a 1994 spoof from the radio comedy series What Happened to...? Exploration Earth: The Time Machine "Exploration Earth: The Time Machine" is an episode of the BBC Schools radio drama series "Exploration Earth", a series exploring geography.