Talk:Abel Foullon

Add topic
Active discussions
WikiProject Biography / Science and Academia (Rated Stub-class)
WikiProject iconThis article is within the scope of WikiProject Biography, a collaborative effort to create, develop and organize Wikipedia's articles about people. All interested editors are invited to join the project and contribute to the discussion. For instructions on how to use this banner, please refer to the documentation.
Stub This article has been rated as Stub-Class on the project's quality scale.
Taskforce icon
This article is supported by the science and academia work group.
 
WikiProject France (Rated Stub-class, Low-importance)
WikiProject iconThis article is within the scope of WikiProject France, a collaborative effort to improve the coverage of France on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.
Stub This article has been rated as Stub-Class on the project's quality scale.
 Low  This article has been rated as Low-importance on the project's importance scale.
 

How does the Holometer work? http://www.nv-landsurveyors.org/files/Topographic_Mapping_ACSM_Student_Competition.pdf

"Other improvements to the instruments being used to perform topographic surveys and maps include a precursor to the plane table, the holometer, (fig. 7) of Abel Foullon, published in Paris in 1551. His description also included the name of the instrument maker from who it could be obtained. The holometer was designed to meet the needs of the practical surveyor who did not possess exemplary skills in mathematics, science, and the use of the technical instruments of the day, making it possible for him to construct the map in the field from direct measurements."


http://www.geog.port.ac.uk/webmap/hantsmap/hantsmap/saxton1/sax1svy1.htm Plain Table

"It seems that practical but complacent surveyors, long used to their ways of working, were resistant to newfangled mathematical ideas arising from a resurgence of the art of geometry. The view is widely held today that the average surveyor of elizabethan times could not cope with the simple mathematics required by the geometrical instruments. Out of the surveyor's practical needs comes the invention of the plain table and sight rule, triangulation without arithmetic.

The first step was an instrument called a holometer, devised by Abel Foullon in his book Holometre, Paris, 1551. This book was widely circulated, and was translated into Latin and Italian from its original French. The holometer is a complete field triangulation and plotting instrument; a table for the paper with an inset compass, a brass graduated base line scale on which two arms slide so they can be set a required distance apart for two observation stations, each arm pivots and has sights, etc. It was a cumbersome tool, a reminder of later victorian universal tools which were more bother than help. But the instrument introduced the idea of plotting in the field. And then an unencumbered, plain, table with a sight rule, an alidade and ruler to set on top, was a much more practical step.

The idea is simple. You have a flat table mounted on a tripod stand, in the field, and on this a sheet of paper. There are two fixed stations; which are marked a distance apart on the paper, setting the scale of the map. At station 1 you set up the plain table with the line joining the stations pointing at station 2. With a sight rule, you draw lines out from the plotted position of station 1, each labelled for their target. At station 2 you line up the table again looking back to station 1, then take sights and draw lines to each of the targets. Where corresponding lines cross you plot the target place.


http://wissensgeschichte.biblhertz.it/Glossario/Glossario_Italiano/olometro/

Articolo "olometro" author Camerota, Filippo description: Strumento per rilevamenti architettonici e topografici ideato e descritto dal meccanico del Re di Francia Abel Foullon. Si tratta di una tavoletta quadrata graduata con al centro una bussola e su un lato due linde (v.) graduate munite di visori. A questa invenzione si ispira lo gnomone (v.) di Bernardo Puccini. http://wissensgeschichte.biblhertz.it/Glossario/Glossario_Italiano/olometro/olometro/Preview image descriptions: Fig. in Abel Foullon, Descrittione et uso dell'olometro, Venezia 1564, p. 16; Immagine proviene dall'Istituto e Museo di Storia della Scienza di Firenze. citations from treatises Abel Foullon, Descrittione et uso dell'olometro, Venezia 1564.

External links modifiedEdit

Hello fellow Wikipedians,

I have just modified one external link on Abel Foullon. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 18 January 2022).

  • If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
  • If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 16:16, 18 September 2017 (UTC)