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  2. Samuel Adams and Paul Revere time capsule - Wikipedia

    en.wikipedia.org/wiki/Samuel_Adams_and_Paul...

    The Samuel Adams and Paul Revere Time Capsule, also known as The Massachusetts State House Time Capsule [1] is a time capsule located in a cornerstone of the Massachusetts State House. It is widely believed to have been buried in 1795 by then-Governor Samuel Adams and Paul Revere. It is the oldest known time capsule in the United States.

  3. Washington (state) - Wikipedia

    en.wikipedia.org/wiki/Washington_(state)

    45°33′ N to 49° N. Longitude. 116°55′ W to 124°46′ W. Website. wa .gov. ASN. 4193. Washington, officially the State of Washington, [3] is a state in the Pacific Northwest region of the United States. It is often referred to as Washington state [a] to distinguish it from the national capital, [4] both named for George Washington (the ...

  4. Iowa State Cyclones football statistical leaders - Wikipedia

    en.wikipedia.org/wiki/Iowa_State_Cyclones...

    The Iowa State Cyclones football statistical leaders are individual statistical leaders of the Iowa State Cyclones football program in various categories, [1] including passing, rushing, total offense, and receiving, and defensive stats. Within those areas, the lists identify single-game, single-season, and career leaders.

  5. Daylight saving time in the United States - Wikipedia

    en.wikipedia.org/wiki/Daylight_saving_time_in...

    The Uniform Time Act of 1966 established the system of uniform daylight saving time throughout the US. [1] In the U.S., daylight saving time starts on the second Sunday in March and ends on the first Sunday in November, with the time changes taking place at 2:00 a.m. local time. With a mnemonic word play referring to seasons, clocks "spring ...

  6. U.S. state - Wikipedia

    en.wikipedia.org/wiki/U.S._state

    U.S. state. In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sovereignty with the federal government.

  7. Settling time - Wikipedia

    en.wikipedia.org/wiki/Settling_time

    Tay, Mareels and Moore (1998) defined settling time as "the time required for the response curve to reach and stay within a range of certain percentage (usually 5% or 2%) of the final value." Mathematical detail. Settling time depends on the system response and natural frequency.

  8. Stepped reckoner - Wikipedia

    en.wikipedia.org/wiki/Stepped_reckoner

    The stepped reckoner or Leibniz calculator was a mechanical calculator invented by the German mathematician Gottfried Wilhelm Leibniz around 16 and completed in 1694. [1] The name comes from the translation of the German term for its operating mechanism, Staffelwalze, meaning "stepped drum". It was the first calculator that could perform all ...

  9. Equation of time - Wikipedia

    en.wikipedia.org/wiki/Equation_of_time

    The equation of time is the east or west component of the analemma, a curve representing the angular offset of the Sun from its mean position on the celestial sphere as viewed from Earth. The equation of time values for each day of the year, compiled by astronomical observatories, were widely listed in almanacs and ephemerides.: 14