HOW COOK DID IT? CELESTIAL NAVIGATION AND THE TRANSIT OF VENUS
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A series of four videos introducing maritime navigation that look at the challenge Captain Cook had in navigating the oceans. How the Transit observations contributed to navigation knowledge; the vital role of 'time' in determining longitude; how early navigators used "dead reckoning to fix their location on the surface of the earth, and how to use a sextant to determine latitude. Presented by Commander David Hedgley, FNI, Royal NZ Navy with the participation of Sea Cadets Kerry Halsey, Omar Hamel, Michael Hill, Jean-Louis Morrison, Jamie Shute, Hannah Williams. Filmed at the NZ National Maritime Museum and on board the historic ship 'Ted Ashby' with the support of the Royal NZ Navy.
Sea Cadet Units of New Zealand Cadet Forces
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| Title: | COOK, TRANSITS AND NAVIGATION |
| Time: | 4'47" |
| Description: | The Transit of Venus and the Astronomical Unit, Cook's observations and the Transit of Mercury, what is Latitude and Longitude. |
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| Title: | THE PROBLEM OF LONGITUDE |
| Time: | 4'53" |
| Description: | Thinking of the Earth like a clock, the noon (Meridian) passage of the sun, and how knowing time can tell you longitude. |
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| Title: | NAVIGATION USING DEAD RECKONING |
| Time: | 3'44" |
| Description: | How Cook used dead reckoning with a compass, how he knew the ship's speed, why he was the "navigator of navigators". |
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| Title: | HOW A SEXTANT TELLS SAILORS WHERE THEY ARE |
| Time: | 3'34" |
| Description: | How to use a sextant, taking the noon sight to find latitude and longitude and know where you are. |
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