Images Dated 14th July 2010

Vinegar production, 19th century

Vinegar production, 19th century cutaway artwork. This is a trickling method developed in 1823 by the German chemist Schutzenbach. The barrel is divided into three sections. An alcoholic solution in the top section trickles through an inert material packed in the middle section. Bacteria in the middle section produce acetic acid (vinegar) which is collected in the bottom section and removed via a tap. Air holes (bottom) and pipes (top) provide air and remove gases produced. Engraving from Grands Hommes et Grands Faits de l'Industrie (Great Men and Great Facts of Industry), published in France circa 1880

© CCI ARCHIVES/SCIENCE PHOTO LIBRARY

Sunset over Jokulsarlon Glacier Lagoon, Iceland

Jokulsarlon literally glacial river lagoon is a large glacial lake in southeast Iceland, on the edge of Vatnajokull National Park. Situated at the head of the Breidamerkurjokull glacier, it developed into a lake after the glacier started receding from the edge of the Atlantic Ocean. The lake has grown since then at varying rates because of melting of the glaciers. It is now 1.5 kilometers (0.93 mi) away from the oceans edge and covers an area of about 18 km2 (6.9 sq. mi). It recently became the deepest lake in Iceland, at over 248 meters (814 ft.), as glacial retreat extended its boundaries

© Josh Anon / Jaynes Gallery / DanitaDelimont.com

Titusville Oil Boom

Wagons carting barrels of oil through the streets of Titusville, Pennsylvania, during the Pennsylvanian oil rush, circa 1860. (Photo by Three Lions/Hulton Archive/Getty Images)

© 2010 Getty Images

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