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Jacob's staff references on wikipedia
Jacob's_staff
For the plant known as the ocotillo, sometimes called the Jacob's staff, see ocotillo.The Jacob's staff, also called a cross-staff, is used to refer to several things. This can lead to considerable confusion unless one clarifies the purpose for the object so named. The most frequent uses of the terms are for astronomy and navigation and for surveying.
For the plant known as the ocotillo, sometimes called the Jacob's staff, see ocotillo.The Jacob's staff, also called a cross-staff, is used to refer to several things. This can lead to considerable confusion unless one clarifies the purpose for the object so named. The most frequent uses of the terms are for astronomy and navigation and for surveying.
| Description | |||
 Biu.ac.il | אוניברסיטת בר-אילן | ||
| Dehilster.info | Welcome to the homepage of Nicolàs de Hilster | ||
| Hebtools.com | Hebtools.com | ||
| Mhn.de | Mhn.de | ||
| Nineplanets.org | The Nine Planets Solar System Tour | ||
| Surveyhistory.org | Virtual Museum of Surveying | ||
