Images

Sweat lodge frame - Cheyenne, photo by Edward S. Curtis, 1910. Library of Congress, Washington D.C.

Bringing the Sweat-lodge Willows - Piegan, photo by Edward Sheriff Curtis, 1910. Museum of Photographic Arts, San Diego.

Sweat lodge, Kiowa camp on the Washita, illustration from the Annual report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1880.

Frame of a traditional Native American sweat lodge, photo by Chorazy Jane, U.S. Fish and Wildlife Service.

Napoleon greets soldiers of the 7th Regiment at Grenoble, after his return to France at the beginning of the Hundred Days period (1815). Oil on canvas by Charles de Steuben, 1818. Private collection.

A modern painting showing the Dutch mathematician and astronomer Christiaan Huygens (1629-1695) alongside his partner in clockmaking Salomon Coster. Painting by Hugh Chevins, 1955. (Science Museum, London)

The eyepiece, main lens housing, and a drawing illustrating the aerial telescope designed and built by the Dutch mathematician and astronomer Christiaan Huygens (1629-1695) towards the end of the 17th century. (Science Museum, London)

A reconstructed model of a pendulum clock designed and built by the Dutch mathematician and astronomer Christiaan Huygens (1629-1695). The device has two weights and two pulleys which are driven by the swing of the pendulum. (Science Museum...

Battle of Waterloo, oil on canvas by William Sadler, 1815. Pyms Gallery, London.

Napoleon prepares to escape from his exile on the island of Elba, 26 February 1815. Oil on canvas by Joseph Beaume, 1836. Musée Naval et Napoléonien, Cap d'Antibes.