• Re: Galileo's Geometric Compass (1640)
    Publicado el Martes, 31 de Enero de 2023 a las 13:26 CET por oscampo@... (Oscar Campo)
    Here you can access to an English version of this book: https://brunelleschi.imss.fi.it/esplora/compasso/dswmedia/risorse/eleoperazioni.pdf

  • Re: Galileo's Geometric Compass (1640)
    Publicado el Martes, 31 de Enero de 2023 a las 09:20 CET por karl.kleine@... (Karl Kleine)
    That's just the book I mentioned to Fred, of which he already ordereda copy from Amazon US, as he lives on the US west coast.But I might mention yet another ...

  • Re: Galileo's Geometric Compass (1640)
    Publicado el Martes, 31 de Enero de 2023 a las 09:02 CET por mikegroves@... (Michael Groves)
    I came across this:https://www.wob.com/de-de/buecher/galileo-galilei/operations-of-the-geometric-and-military-compass/9780874743838Maybe that is what you are looking for?

  • Re: Galileo's Geometric Compass (1640)
    Publicado el Martes, 31 de Enero de 2023 a las 04:48 CET por karl.kleine@... (Karl Kleine)
    Hello Fred,Stillman Drake, a scholar working on Galileo's works, translated the book into EnglishOperations of the geometric and military compassWashington, D.C. : Smithsonian Institution Press, 1978. bibliographic data at LOC: ...

  • Galileo's Geometric Compass (1640)
    Publicado el Lunes, 30 de Enero de 2023 a las 23:45 CET por fastahl@... (Fred Stahl)
    I have recently run across an original copy of Galileo's Book. on Geometric Compass and Military (1640) in Italian.It looks like a computational device, but I can't say that I ...

  • Re: "howse" navigational computer
    Publicado el Lunes, 30 de Enero de 2023 a las 19:09 CET por andreas.poschinger@... (Andreas Poschinger)
    Thanks Gonzalo!

  • Re: "howse" navigational computer
    Publicado el Sábado, 28 de Enero de 2023 a las 11:30 CET por jerry_mccarthy_uk@... (Jerry McCarthy)
    > So “Howse” is the inventor of this Slide Rule..And so is a different Howse from the one I guessed at.Great find!!Regards, ...

  • Re: Brief newspaper article about Otis King sliderule
    Publicado el Sábado, 28 de Enero de 2023 a las 07:23 CET por dicklyon@... (Richard F. Lyon)
    I have a whole bunch of Otis Kings, which I've been collecting for decades.  Their price on eBay has been declining at about a steady 5% per year, which makes ...

  • Re: Brief newspaper article about Otis King sliderule
    Publicado el Viernes, 27 de Enero de 2023 a las 20:56 CET por mikegroves@... (Michael Groves)
    I probably paid over the odds for the K. I'm new to the slide rule market.

  • Re: Brief newspaper article about Otis King sliderule
    Publicado el Viernes, 27 de Enero de 2023 a las 20:54 CET por mikegroves@... (Michael Groves)
    An interesting little article.  A friend had an Otis King at school and was the envy of us all. Unless the Canadian dollar has severely depreciated, the antique expert is ...

  • Brief newspaper article about Otis King sliderule
    Publicado el Viernes, 27 de Enero de 2023 a las 19:44 CET por ve3oat@... (Martin Potter VE3OAT)
    Here is a brief Ottawa Citizen newspaper article, from their on-line edition, about an Otis King sliderule. https://ottawacitizen.com/life/antiques-made-by-a-king-this-slide-rules The article is from a column by the newspaper's regular antiques ...

  • Re: "howse" navigational computer
    Publicado el Viernes, 27 de Enero de 2023 a las 18:55 CET por martingonzalo@... (Gonzalo Martin)
    Hello In this article from the O.S. there is a page from a W&G catalogue, https://www.sliderulemuseum.com/Papers/W-G_AnAustralianSlideRuleManufacturer_byRobertBruceSandie_JOS_V19.2P59.pdf it says: Howse Navigational Computor Designed by Australian pilot Capt H. Howse for use by Commercial Airlines...etc..   So “Howse” is the inventor of this ...

  • Re: "howse" navigational computer
    Publicado el Viernes, 27 de Enero de 2023 a las 17:23 CET por jerry_mccarthy_uk@... (Jerry McCarthy)
    I finally found the Google books reference and it is on Page 233 of that book. It's by W&G (of Australia) but ...

  • Re: "howse" navigational computer
    Publicado el Viernes, 27 de Enero de 2023 a las 17:16 CET por jerry_mccarthy_uk@... (Jerry McCarthy)
    As it happens, I have a copy of that book, and the name "Howse" doesn't seem to appear in the index, or in any of the alphabetical lists in that ...

  • Re: "howse" navigational computer
    Publicado el Viernes, 27 de Enero de 2023 a las 10:29 CET por dave.g4ugm@... (Dave Wade)
    Andreas,Its pretty useless you have a Facebook account and are a member of that group as it’s a private group. Dave 

  • Re: "howse" navigational computer
    Publicado el Viernes, 27 de Enero de 2023 a las 10:24 CET por andreas.poschinger@... (Andreas Poschinger)
    Hi Jerry, I am afraid, that this link maybe useless if one has no facebook ...

  • Re: "howse" navigational computer
    Publicado el Viernes, 27 de Enero de 2023 a las 10:11 CET por jerry_mccarthy_uk@... (Jerry McCarthy)
    I meant to post a link to the FB posting: https://www.facebook.com/groups/739023722850607/?hoisted_section_header_type=recently_seen&multi_permalinks=5944290195657241Regards, JMcC, U.K. ...

  • File /tmp/326254850_629661112302979_7833007641081081106_n.jpg uploaded
    Publicado el Viernes, 27 de Enero de 2023 a las 10:03 CET por @...
    The following files and folders have been uploaded to the Files area of the sliderule@groups.io group. /tmp/326254850_629661112302979_7833007641081081106_n.jpg By: Andreas Poschinger <andreas.poschinger@...> Description: Temorary uploaded picture to find out about the regarding instrument and the ...

  • Re: "howse" navigational computer
    Publicado el Viernes, 27 de Enero de 2023 a las 09:57 CET por andreas.poschinger@... (Andreas Poschinger)
    Peter, does your book contain a picture or whatever indicating that it is for commercial aircrafts? Could ...

  • Re: "howse" navigational computer
    Publicado el Viernes, 27 de Enero de 2023 a las 09:45 CET por jerry_mccarthy_uk@... (Jerry McCarthy)
    I've now found the FB posting here: One John Savard writes: "Google Books tells me that this particular slide rule is mentioned ...