distance around

Pi is a special number that describes the connection between the distance around a circle and the distance across it.

"What's really interesting about lizards is that they just need to be able to move a short distance around the tree trunk to get to a very different climate and habitat environment," said Keith Musselman, an assistant professor in the Department of Geography and CU Boulder's Institute of Arctic and Alpine Research.

During the winter, thousands of Dutch skaters head to higher, colder climes to take part in an 'alternative Elfstedentocht', racing the full distance around a lake in Austria.

With the sound of outgoing and incoming artillery crashing in the distance around him, one of three artillerymen operating a Hiatsynt howitzer, 22-year-old Vitaliy, said he had felt the increase after coming back from leave last month.

“The star itself might have a very unusual history that somehow permitted this planet to survive at such a close distance around what is otherwise a rather inhospitable host star,” he added.