This type of diagram is created by scattering points at random on a Euclidean plane. The plane is then divided up into tessellating polygons, known as cells, one around each point, consisting of the ...

This is great news for anyone hoping for extraterrestrial life, as it significantly extends past estimates of how long Earth can maintain a functioning biosphere – our only data for this in the ...

The elements of a Feynman diagram. Back in the late 1940s ... surrounding a star is mechanically impossible. The form of ‘biosphere’ which I envisaged consists of a loose collection or ...

The 56,259 ha biosphere lies within rugged forested mountains about 100 km northwest of Mexico City. Every autumn, millions, perhaps a billion, butterflies from wide areas of North America return to ...