Wednesday, December 12, 2007

First Day of Winter

First Day of WinterPrivacy & Security Notice The DoD Imagery Server is provided as a public service by the American Forces Information Service.

The Defense Visual Information Directorate. Information presented on DoD Imagery Server is considered public information. (High Resolution Image).
except where noted for government and military users logged into restricted areas) and may be distributed or copied. Use of appropriate byline/photo/image credits is requested.

About Images on DefenseLINK, All of these files are in the public domain unless otherwise indicated.However, we request you credit the photographer/videographer as indicated or simply "Department of Defense."

Generally speaking, works created by U.S. Government employees are not eligible for copyright protection in the United States. See Circular 1 "COPYRIGHT BASICS" from the U.S. Copyright Office.

Winter From Wikipedia, the free encyclopedia

Winter is one of the four seasons of temperate zones. Almost all English-language calendars, going by astronomy, state that winter begins on the winter solstice, and ends on the spring equinox. Calculated more by the weather, it begins and ends earlier and is the season with the shortest days and the lowest temperatures. Either way, it generally has cold weather and, especially in the higher latitudes, snow and ice.

Depending on place and culture, start and end of winter can be defined as above or in other ways. Contemporary meteorology takes winter to be the months of June, July, and August in the Southern Hemisphere, and December, January, and February in the Northern Hemisphere.

Passing seasons change the habits and moods of people. During the winter months in the northern hemisphere, a gloominess nicknamed "winter blues", "February blahs", "Holiday depression", or doldrums, is informally noted amongst people. The severest cases of this type of depression is diagnosed as seasonal affective disorder (SAD). Symptoms include sleeping more, tiredness, depression, and physical aches. Although causes include genetic disposition and stress, the prevailing environmental influence is decreased exposure to light due to the angle of the sun and the increased amount of clothing that must be worn to keep warm.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article, Winter

Pearl Harbor Remembered and and Festival of lights Hanukkah Menorah and Carbon nanotubes to be replaced by MoSIx nanowires in high-tech devices says new study

No comments:

Post a Comment