clock calendar board

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• Clock of the Long Now — The first prototype, on display at the Science Museum in London. The Clock of the Long Now, also called the 10,000 year clock, is a proposed mechanical clock designed to keep time for 10,000 years. The project to build it is part of the Long Now… …   Wikipedia

• Calendar of 2000 — ▪ 2001 January We are fortunate to be alive at this moment in history. Never before has our nation enjoyed, at once, so much prosperity and social progress with so little internal crisis and so few external threats. Never before have we had such… …   Universalium

• Calendar of 2002 — ▪ 2003 January I will not wait on events while dangers gather. I will not stand by as peril draws closer and closer. The United States of America will not permit the world s most dangerous regimes to threaten us with the world s most destructive… …   Universalium

• 24-hour clock — 24H redirects here. For the Canadian newspaper chain, see 24H (newspaper). 24 hour clock 12 hour clock 00:00 12:00 a.m. (start of day) 12 midnight 01:00 1:00 a.m. 02:00 2:00 a.m. 03:00 3:00 a.m. 04:00 4:00 a.m. 05:00 …   Wikipedia

• Mantel clock — Mantel clocks or shelf clocks are relatively small house clocks traditionally placed on the shelf, or mantel, above the fireplace. The form, first developed in France in the 1750s, can be distinguished from earlier chamber clocks of similar size… …   Wikipedia

• Common Era — BCE redirects here. For other uses, see BCE (disambiguation). Era Vulgaris redirects here. For the Queens of the Stone Age album, see Era Vulgaris (album). Common Era (sometimes Current Era[1] or Christian Era[2]), abbreviated as CE, is an… …   Wikipedia

• System time — Unix date command In computer science and computer programming, system time represents a computer system s notion of the passing of time. In this sense, time also includes the passing of days on the calendar. System time is measured by a system… …   Wikipedia

• Time dilation — This article is about a concept in physics. For the concept in sociology, see time displacement. In the theory of relativity, time dilation is an observed difference of elapsed time between two events as measured by observers either moving… …   Wikipedia

• Longitude — For Dava Sobel s book about John Harrison, see Longitude (book). For the adaptation of Sobel s book, see Longitude (TV series). Map of Earth Longitude (λ) Lines of longitude appear vertical with varying curvature in this projection, but are… …   Wikipedia

• Lunar distance (navigation) — For the history of the lunar distance method, see History of longitude. Finding Greenwich time while at sea using a lunar distance. The Lunar Distance is the angle between the Moon and a star (or the Sun). The altitudes of the two bodies are used …   Wikipedia

• Hourglass — For other uses, see Hourglass (disambiguation). Hourglass in a three legged stand An hourglass (sandglass, sand timer, sand clock, egg timer) measures the passage of a few minutes or an hour of time. It has two connected vertical glass bulbs… …   Wikipedia