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*Found great replacement for old dusty GPS .* * This need no batteries and no Satellite need. It is made in brass with plating to keep brass look. Free shipping too.* *You should buy two , one for a

Here time line **?????? ? ? ? Astrolabe first real Navigation tool ? ? ?** ? The astrolabe is an intricate astronomical instrument invented in Ancient Greece around 150 BC.

Calculation of Great Circle navigation. If have a global and string you do same thing. You see photos of globals on ships some navigators will use pins on global for location and where going.? Cuts

*Hello Everyone just monthly hi from * MINILATHE @groups.io group at 开云体育, a free, easy-to-use email group service. Please take a moment to post your latest projects and photos here. *Note: It

Link to web site for sextant for time. https://astrolabesailing.com/2016/10/04/celestial-navigation-measurement-of-time/ Dave

*Symbols and abbreviations for worksheet* - Hs: Sextant height/altitude - Ha: Apparent sextant height/altitude - Ho: Observed sextant height/altitude - Dip: Depression of the horizon - Sun corr.:

Here is a pdf file on the basic inputs used for location

Search Engine in excel file below General ------- Name Language Backend ownership Ask.com ( https://en.m.wikipedia.org/wiki/Ask.com ) Multilingual Google United States (

* Just think of son's ? thinking each coin worth $3,500 each times 9 to 12. O h$^% Dad might have more than 12 . * *I go though allow the junk pile for $31,500 to over $42,500* * Dam Dam Dam* *He

Here one made by the Chinese https://www.bing.com/videos/search?q=frame.licker+engine&view=detail&mid=E2B691BAEF5CE2255ED9E2B691BAEF5CE2255ED9&FORM=VIRE&PC=EMMX01 Dave

Here is a book I found on the Sextant https://archive.org/details/manualofsextantc00thom/page/3/mode/1up Dave

Here is a Excel spreadsheet made easy.

Looks great A machinist had nice job watching the shaper Dave

Monarch 20x96 inch engine lathe. https://www.youtube.com/watch?v=jcAXZk6XkQs

This is on an active lineshaft in the Fred R Clark & Son Machineworks. This old gal is the most reliable machinetool in the shop. https://www.youtube.com/watch?v=Pow9_X7KLHU

https://www.youtube.com/watch?v=RtpQheQ4lZg

never saw a candle powered one before.? But I do have a Stirling engine for my tea cup.

Here few gifts on hot air engines

Y ou find where are? 4 times year you do not need any table or chart Apx March 20 and September 20 at noon is zero Apx June 20 and December 20 at noon is The axial tilt of Earth is currently about

Dave, I had one of the Air Hogs toy planes as a kid. Worked on exactly that principle. Doug? Yahoo Mail: Search, Organize, Conquer On Fri, Mar 21, 2025 at 16:17,