Wikipedia:Picture of the day/July 2007

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An animated image showing the territorial evolution of Canada, that is, the dates when each province and territory were created. Since it was formed, Canada's external borders have changed six times, and it has grown from four provinces to ten provinces and three territories. It has only lost territory in the small border dispute with the Dominion of Newfoundland over Labrador, which joined Canada some time later.

Image credit: Golbez

The

Photo credit: Mdf

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An

Image credit: Astrokey44

The

Photo credit: K.-M. Hansche

A path of shelled pecans makes its way through a host of unshelled ones. Pecans can be eaten fresh or used in cooking, particularly in sweet desserts, such as the pecan pie, a traditional southern U.S. recipe. Pecans are also a major ingredient in praline candy. The U.S. produces between 80% and 95% of the world's pecans, with an annual crop of 150–200 million kg (300–400 million pounds).

Photo credit: Scott Bauer, ARS

The brise soleil on Santiago Calatrava's Quadracci Pavilion of the Milwaukee Art Museum in the open position. French for "sun break", a brise soleil serves to provide shade from the sun. Calatrava's brise soleil opens up for a wingspan of 217 feet (66.1 m) during the day, folding over the tall, arched structure at night or during inclement weather.

Photo credit: Michael Hicks

A view of the

Vernal Fall is a 317 ft (97 m) tall waterfall on the Merced River just downstream of Nevada Fall in Yosemite National Park, California, United States. It is accessible via the Mist Trail, which climbs close enough to the fall so that hikers must travel through the fall's mist. The waterfall runs all year long, although by the end of summer, it is substantially reduced in volume and can split into multiple strands, rather than a single curtain, of water.

Photo credit: God of War

General

Photo credit: United States Navy

An 1885 illustration of

The anatomy of a human eye.

1. 

Female internees practicing

Photo credit: Ansel Adams

The

The

Image credit: Peter Halasz

The 66th plate from

Image credit: Ernst Haeckel

An image of the top layers of

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This animation shows a classic example of homeomorphism: a coffee mug and a torus are topologically the same. Roughly speaking, a topological space is a geometric object and the homeomorphism is a continuous stretching and bending of the object into a new shape. The traditional joke is that topologists can't tell the coffee cup from which they are drinking from the donut they are eating, since a sufficiently pliable donut could be reshaped to the form of a coffee cup by creating a dimple and progressively enlarging it, while shrinking the hole into a handle.

Image credit:

The

Image credit: WikipedianProlific

A picture of

Photo credit: Scott Bauer, ARS

An 1888

Card produced by Goodwin & Company

An illustration showing the effects of

The world's largest

Photo credit: NASA

A

Photo credit: Matt Field

A

A portrait of

A man exemplifying anti-Iranian sentiment during a 1979 Washington, D.C. student protest of the Iran hostage crisis. His raised sign reads "deport all Iranians, get the hell out of my country" and "Release all Americans now" on the reverse side.

Photo credit: Marion S. Trikosko,
U.S. News & World Report

Salt mounds in Salar de Uyuni, Bolivia, the world's largest salt flat. It is the remnant of a prehistoric lake surrounded by mountains without drainage outlets. Salt is harvested in the traditional method: the salt is scraped into small mounds for water evaporation and easier transportation, dried over fire, and finally enriched with iodine.

Photo credit: Luca Galuzzi

A black-tailed prairie dog at the National Zoo in Washington, D.C., looks out from a system of burrows, characteristically scanning the horizon. On average, these rodents grow to between 12 and 16 inches (30 and 40 cm) long, including their short tails.

Photo credit: Aaron Siirila

This watercolor painting shows Cleveland Tower on the campus of Princeton University in Princeton, New Jersey as seen from just outside Procter Hall at the Old Graduate College in the noon autumn sun. The tower was built in 1913 as a memorial to former United States President Grover Cleveland, who also served as a university trustee. One of the largest carillons in the world, the class of 1892 bells, was installed in 1927. The Chapel Music program plays the bells Sunday afternoons during each semester, except during exam periods.

Artist: David Liao