Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Equation_clock> ?p ?o. }
Showing items 1 to 30 of
30
with 100 items per page.
- Equation_clock abstract "An equation clock is a mechanical clock which includes a mechanism that simulates the equation of time, so that the user can read or calculate solar time, as would be shown by a sundial. The first accurate clocks, controlled by pendulums, were patented by Christiaan Huyghens in 1657. For the next few decades, people were still accustomed to using sundials, and wanted to be able to use clocks to find solar time. Equation clocks were invented to fill this need.Early equation clocks have a pointer that moves to show the equation of time on a dial or scale. The clock itself runs at constant speed. The user calculates solar time by adding the equation of time to the clock reading. Later equation clocks, made in the 18th Century, perform the compensation automatically, so the clock directly shows solar time. Some of them also show mean time, which is often called "clock time".".
- Equation_clock thumbnail Equation_of_time.svg?width=300.
- Equation_clock wikiPageExternalLink cataloguedetail.html?&priref=95862&_function_=xslt&_limit_=100&sf_function=print.
- Equation_clock wikiPageExternalLink 2up.
- Equation_clock wikiPageExternalLink double_dial_cylinder_watch_wit.aspx.
- Equation_clock wikiPageExternalLink search_object_details.aspx?objectid=3088493&partid=1&output=Terms%2F!!%2FOR%2F!!%2F23419%2F!%2F%2F!%2Fclock%2F!%2F%2F!!%2F%2F!!!%2F&orig=%2Fresearch%2Fsearch_the_collection_database%2Fadvanced_search.aspx¤tPage=1&numpages=10.
- Equation_clock wikiPageID "34710289".
- Equation_clock wikiPageRevisionID "606716514".
- Equation_clock hasPhotoCollection Equation_clock.
- Equation_clock subject Category:Clocks.
- Equation_clock type Artifact100021939.
- Equation_clock type Clock103046257.
- Equation_clock type Clocks.
- Equation_clock type Device103183080.
- Equation_clock type Instrument103574816.
- Equation_clock type Instrumentality103575240.
- Equation_clock type MeasuringInstrument103733925.
- Equation_clock type Object100002684.
- Equation_clock type PhysicalEntity100001930.
- Equation_clock type Timepiece104437953.
- Equation_clock type Whole100003553.
- Equation_clock comment "An equation clock is a mechanical clock which includes a mechanism that simulates the equation of time, so that the user can read or calculate solar time, as would be shown by a sundial. The first accurate clocks, controlled by pendulums, were patented by Christiaan Huyghens in 1657. For the next few decades, people were still accustomed to using sundials, and wanted to be able to use clocks to find solar time.".
- Equation_clock label "Equation clock".
- Equation_clock sameAs m.0j3c_0m.
- Equation_clock sameAs Q5384232.
- Equation_clock sameAs Q5384232.
- Equation_clock sameAs Equation_clock.
- Equation_clock wasDerivedFrom Equation_clock?oldid=606716514.
- Equation_clock depiction Equation_of_time.svg.
- Equation_clock isPrimaryTopicOf Equation_clock.
