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A sextant is a navigational instrument used to typically on ships (mostly before the invention of GPS) by sighting the sun at noon and noting its angle. By comparing the angle at noon with various tables, navigators could discern their location along a particular latitude. It was invented by Sir Isaac Newton in the early 1700s and refined by many others and is still used, virtually unchanged, today. Other instruments used include a chronometer to note time vs. Greenwich, England and a…

A sextant is a navigational instrument used to typically on ships (mostly before the invention of GPS) by sighting the sun at noon and noting its angle. By comparing the angle at noon with various tables, navigators could discern their location along a particular latitude. It was invented by Sir Isaac Newton in the early 1700s and refined by many others and is still used, virtually unchanged, today. Other instruments used include a chronometer to note time vs. Greenwich, England and a…

Zeiss Spherometers # 1312

Zeiss Spherometers # 1312

Mich@el the Alchemist

Mich@el the Alchemist

I have the style of the red one..a ceramic one..glazed in gold...hmmmm.  I could redo it.

I have the style of the red one..a ceramic one..glazed in gold...hmmmm. I could redo it.

Spherical astrolabe (15th C.). One point which distinguishes Star Map from the astrolabe is that in both cases, astrolabes were not meant for direct viewing. In other words, one could not do real time work. It would require measurement, enscribing, and a duration of labor, etc. Worth mentioning, the spherical astrolabe did not have a viewing instrument, like the planispheric versions did. This made the planispheric require less work and fewer hours of it in order to chart information.

Spherical astrolabe (15th C.). One point which distinguishes Star Map from the astrolabe is that in both cases, astrolabes were not meant for direct viewing. In other words, one could not do real time work. It would require measurement, enscribing, and a duration of labor, etc. Worth mentioning, the spherical astrolabe did not have a viewing instrument, like the planispheric versions did. This made the planispheric require less work and fewer hours of it in order to chart information.

Antique Sextant, the original Google Map.

Antique Sextant, the original Google Map.

Résultat de recherche d'images pour "instruments scientifiques musée des arts décoratifs paris"

Résultat de recherche d'images pour "instruments scientifiques musée des arts décoratifs paris"

Scottish Brass Sextant by David Stalker, With Original Box

Scottish Brass Sextant by David Stalker, With Original Box

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Le voyage... c'est une autre de mes passions. A l'heure ou je commence à rêver à mes prochains projets et à z'yeuter les billets d'avion, j'ai eu envie de dédicacer ce post aux globe lovers!...

Compass and Sun Dial | 1700-1750

Compass and Sun Dial | 1700-1750

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