Search results
Results from the WOW.Com Content Network
Longitude by chronometer is a method, in navigation, of determining longitude using a marine chronometer, which was developed by John Harrison during the first half of the eighteenth century. It is an astronomical method of calculating the longitude at which a position line, drawn from a sight by sextant of any celestial body, crosses the ...
Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time is a 1995 best-selling book by Dava Sobel about John Harrison, an 18th-century clockmaker who created the first clock (chronometer) sufficiently accurate to be used to determine longitude at sea—an important development in navigation.
A navigation bar (or navigation system) is a section of a graphical user interface intended to aid visitors in accessing information. Navigation bars are implemented in operating systems, file browsers , [ 1 ] web browsers , apps, web sites and other similar user interfaces .
A boxed chronometer is mounted on gimbals attached to its box. A pocket chronometer is in the style of a pocketwatch. "Winding" refers to the number of days that a chronometer kept going before needing rewinding. However, they were all wound at precisely the same time every day, except for the eight-day chronometers which were wound weekly. [22]
A child window opens automatically or as a result of a user activity in a parent window. Pop-up windows on the Internet can be child windows. A message window, or dialog box, is a type of child window. These are usually small and basic windows that are opened by a program to display information to the user and/or get information from the user.
This template is a navigational template intended to be used to generate a scrollable navigation "bar", rather than a navigation box, in cases where there are a long list of items with a natural ordering (for example, alphabetical or numerical) that as a box would consume a large amount of vertical space in an article.
Marine chronometer used to determine time at the prime meridian with great precision which is necessary when reducing sights in celestial navigation. Nocturnal used to determine apparent local time by viewing the Polaris and its surrounding stars. Ring dial or astronomical ring used to measure the height of a celestial body above the horizon ...
It is an interface style most commonly associated with web browsers, web applications, text editors, and preference panels, with window managers and tiling window managers. Tabs are modeled after traditional card tabs inserted in paper files or card indexes (in keeping with the desktop metaphor ).