The History of Navigation – Part 2 Astrolabe • Octant • Sextant Long before GPS, sailors crossed oceans using science and the sky. 🔹 Astrolabe Originated around 200 BCE and later adapted for ocean travel in the 1400s–1500s. Sailors used it to measure the height of the sun or stars above the horizon to determine latitude. 🔹 Octant Invented in the 1730s, the octant used mirrors to measure angles, allowing sailors to see the sun and horizon at the same time — far more accurate on a moving ship. �
0:12
The History of Navigation – Part 2 Astrolabe • Octant • Sextant Long before GPS, sailors crossed oceans using science and the sky. 🔹 Astrolabe Originated around 200 BCE and later adapted for ocean travel in the 1400s–1500s. Sailors used it to measure the height of the sun or stars above the horizon to determine latitude. 🔹 Octant Invented in the 1730s, the octant used mirrors to measure angles, allowing sailors to see the sun and horizon at the same time — far more accurate on a moving ship. �
28 views2 months ago
FacebookColonial Quarter
Did the sextant replaced the astrolabe? - TimesMojo
Did the sextant replaced the astrolabe? - TimesMojo
Jul 7, 2022
timesmojo.com
Nautical Brass Working Sextant, Antique Maritime Navigational Instrument With Wooden Case, Astrolabe Ships Instrument, Navigational Sextant - Etsy
0:13
Nautical Brass Working Sextant, Antique Maritime Navigational Instrument With Wooden Case, Astrolabe Ships Instrument, Navigational Sextant - Etsy
4 months ago
etsy.com
Compass With Sextant - Engraved Personalized Compass Nautical Sextant - Brass Solid Working Handmade Antique Boat Navigation Vintage Sextant - Etsy
0:17
Compass With Sextant - Engraved Personalized Compass Nautical Sextant - Brass Solid Working Handmade Antique Boat Navigation Vintage Sextant - Etsy
Mar 22, 2025
etsy.com
Tamaya Nautical Sextant in Wooden Box - Etsy
0:05
Tamaya Nautical Sextant in Wooden Box - Etsy
7 months ago
etsy.com
Antique Maritime Nautical Sextant Vintage Marine Astrolabe Ship's Instrument With Wooden Box J. Scott London Brass Ship Sextant - Navy Gift - Etsy
0:15
Antique Maritime Nautical Sextant Vintage Marine Astrolabe Ship's Instrument With Wooden Box J. Scott London Brass Ship Sextant - Navy Gift - Etsy
2 months ago
etsy.com
Astrolabe | Definition, Function & History
5:30
Astrolabe | Definition, Function & History
12K viewsFeb 8, 2023
Study.com
3:52
How Is A Sextant Used For Navigation? - Maritime Page
Aug 27, 2022
maritimepage.com
How Astrolabes Work
May 9, 2012
howstuffworks.com
Try this at home Part 3: Build a sextant
May 12, 2020
spacecenter.org
0:29
9" Black Tamaya Sextant Nautical Navigation Sextant - Vintage Ship Astrolabe Navigation Instrument, Collectible Item Handmade Sextant for Mariners & Surveyors
Jul 23, 2023
amazon
0:54
ALADEAN Marine Sextant | Vintage Navigation Instruments Antique Astrolabe | Ship Captain Nautical Brass Sextant Gift Box
446 viewsApr 12, 2022
amazon
0:11
Malla Sextant Instrument 9" Brass Sextant with Box | Navigational Sextant | Sextant Working | Vintage Astrolabe Brass Functional Sextant | Gift Sextant with Wooden Box
50 viewsJul 9, 2020
amazon
0:14
TAL The Antique's Lab 9" Tamaya 1712 Solid Aluminum Working Sextant - Functional Marine Ship Navigation Instrument Astrolabe Model Replica item
Jun 1, 2024
amazon
The Astrolabe: How to Make One and Understanding Its Use
Jul 5, 2012
hubpages.com
3:17
Royalmart Nautical Sextant Antique Astrolabe Ship Navigation Instrument Celestial & Nautical Sextant with Two Extra Sighting Telescope/Astrolabes Sextant Tool (5" Compass Antique)
Sep 12, 2022
amazon
0:56
ALADEAN Handmade Marine Astrolabe Sextant 3" | Ship Captain Nautical Gifts Brass Sextant Gift Box | Vintage Navy Navigation Decorative Instruments Antique Astrolabe Sextant
5 viewsApr 12, 2022
amazon
2:00
🧭 The Woman Who Built GPS 🧭 Every time you use Google Maps, you're using technology a Muslim WOMAN perfected in 944 CE. Her name: Mariam al-Asṭurlābiyya (مريم الأسطرلابية) 🔬 What she did: • Master astrolabe maker (the medieval GPS) • Ran her own workshop when women couldn't own property • Employed craftsmen in a male-dominated field • Built navigation devices for KINGS • Signed every instrument with HER OWN NAME The astrolabe calculated: ⚙️ Time ⚙️ Latitude ⚙️ Star positions ⚙️ Ocean navigati
905 views1 month ago
FacebookMuslim Scientist And Islamic History
The story of the Apollo sextant
May 16, 2023
astronomy.com
Celestial Navigation – The Sextant
Oct 3, 2016
astrolabesailing.com
Neil deGrasse Tyson Explains Constellations Down Under
85.1K viewsNov 30, 2021
YouTubeStarTalk
9:40
DIY A4 sextant
5.9K viewsJun 25, 2020
YouTubeomar reis
6:52
Build an astrolabe
7.3K viewsAug 16, 2019
YouTubeMargaret Pearse
20:07
Sextant, Basic Description and Use
23.8K viewsDec 7, 2012
YouTubeChris Kreitlein
14:34
Calibrating and Using A Sextant
218.1K viewsJan 25, 2013
YouTubeJames Cook
4:31
How to use a sextant
327.5K viewsAug 13, 2012
YouTubeschlechtsquared
14:31
How to read sextant dials
15.1K viewsJun 1, 2020
YouTubeDavid Burch
10:30
Astrolabe Explanation by Eddie Goldstein
18.4K viewsSep 15, 2018
YouTubeEddie Goldstein
9:26
AusNav #11 Horizontal Sextant Angles - Tutorial
38.1K viewsAug 13, 2014
YouTubeaus navigation
9:34
Astrolabes: The Medieval 'Smartphone'? | Seb Falk
58.2K viewsSep 9, 2020
YouTubePenguin Books UK
See more