Images Dated 16th June 2006

Quantised orbits of the planets

Quantum orbits of the planets. Conceptual computer artwork showing the planets of the solar system on a model of atomic orbitals. This represents the theory that the orbits of the planets were determined by similar physical principles to those governing the orbits of electrons. Electrons can only occupy distinct energy levels around an atom, rather than having the capability to be anywhere. These quantum levels are determined by the electron's energy. The theory that similar effects occur at the solar system scale is controversial and not widely accepted, as the orbits can be explained by well-understood gravitational theory

© MEHAU KULYK/SCIENCE PHOTO LIBRARY

London Asylum

Disturbed patients in a London lunatic asylum or psychiatric hospital, 1838. From Sketches in London by James Grant. (Photo by Hulton Archive/Getty Images)

© 2006 Getty Images

15868, H, 1830 1839, 5 4, 537, 71217278, 76168, Archival, Black And White, Box, Chaos, Consumerproduct, Crawling, Diry, Diry 15868, Disorder, Distraught, Drawing Art Product, England, Europe, Full Length, H 76168 Box 537 5 4 Orig H 41439, H Med Psyc, Healthcare And Medicine, Healthcare, England, Europe, Format, Hospital, Illustration, J132658406, London England, Lunatic, Males, Medium Group, Medium Group Of People, Orig, Patient, Pencil Drawing, Point, Portrait, H Med Psyc, Psychiatric, Refugee, Uk, Vertical

Richard Burton As Haji Abdullah En Route To Mecca

Richard Burton As Haji Abdullah En Route To Mecca. Sir Richard Francis Burton, 1821-1890 British Explorer, Translator, Writer, Soldier, Orientalist, Ethnologist, Linguist, Poet, Hypnotist, Fencer And Diplomat. From The Book The Life Of Captain Sir Richard Burton, Volume I, By His Wife Isabel Burton, Published 1893

© Design Pics / Ken Welsh