ID: 185343
Description
Prachtige replica van een 18e eeuws Zonnewijzer-Kompas.
Slechts € 49,50 inclusief GRATIS aangetekende verzending voor Nederland en België !!
Fraai gegraveerd en gemaakt van massief koper. Volledig functionerend !!
Een zonnewijzer-kompas is een nautisch instrument. Het werd gebruikt om ook op zee de tijd te kunnen meten.
Hieronder een uitleg in het Engels...
The compass and the sundial are two completely different instruments which were built for entirely different uses.
The compass is an instrument that is used for navigation and includes a free-floating magnetized needle which, when held level and still, aligns itself with the earth's magnetic field and in doing so, points approximately north.
The sundial is an instrument that is designed for a specific location on the earth and permanently installed there so that the shadow of one of its parts indicates the hour of the day.
The sundial-compass is a combination of these two instruments, consisting of a portable sundial which is attached over a compass via a hinge. There are some adjustable legs that need to be used to level the instrument if not on level ground. The gnome is hinged and needs to be put in the up position where it locks into place. Then the protractor needs to be flipped up as well. The protractor is used to set the sundial to the correct latitude angle, while the compass is used to find true north based on the area's magnetic north declination.
Once your sundial compass has been leveled, set to the correct latitude, and to true north, a shadow will be is cast onto the sundial's face by the gnome... et voilà: you know what time it is !!
Afmeting diameter: c. 12 cm.
Nieuw in doos!
Slechts € 49,50 inclusief GRATIS aangetekende verzending voor Nederland en België !!
***zie ook mijn andere advertentie voor een prachtige scheepskijker***
Slechts € 49,50 inclusief GRATIS aangetekende verzending voor Nederland en België !!
Fraai gegraveerd en gemaakt van massief koper. Volledig functionerend !!
Een zonnewijzer-kompas is een nautisch instrument. Het werd gebruikt om ook op zee de tijd te kunnen meten.
Hieronder een uitleg in het Engels...
The compass and the sundial are two completely different instruments which were built for entirely different uses.
The compass is an instrument that is used for navigation and includes a free-floating magnetized needle which, when held level and still, aligns itself with the earth's magnetic field and in doing so, points approximately north.
The sundial is an instrument that is designed for a specific location on the earth and permanently installed there so that the shadow of one of its parts indicates the hour of the day.
The sundial-compass is a combination of these two instruments, consisting of a portable sundial which is attached over a compass via a hinge. There are some adjustable legs that need to be used to level the instrument if not on level ground. The gnome is hinged and needs to be put in the up position where it locks into place. Then the protractor needs to be flipped up as well. The protractor is used to set the sundial to the correct latitude angle, while the compass is used to find true north based on the area's magnetic north declination.
Once your sundial compass has been leveled, set to the correct latitude, and to true north, a shadow will be is cast onto the sundial's face by the gnome... et voilà: you know what time it is !!
Afmeting diameter: c. 12 cm.
Nieuw in doos!
Slechts € 49,50 inclusief GRATIS aangetekende verzending voor Nederland en België !!
***zie ook mijn andere advertentie voor een prachtige scheepskijker***