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Published byPeter Copeland Modified over 9 years ago
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Youth Leadership Forum 2011 Marking & Navigating “Earth, Sea & Sky”
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How did cavemen find their way home? North Star? Rising Sun (East) Setting Sun (West) Shadows? Breadcrumbs on Trail? History ?
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How did Christopher Columbus find his way? – Around 1492 – Ocean and Wind Currents – Sextant viewing Horizon – Degrees, minutes, and seconds Modern day sextant.
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History 1980s - First GPS Satellites launched
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Marking the Earth North & South Poles Latitude lines Longitude lines
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Poles North South
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True vs. Magnetic North
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Latitude Horizontal “Ladder” steps from Equator 0-90 º North & 0-90 º South
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Longitude Vertical lines from the Prime Meridian 0-180 º East & 0-180 º West
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Balloon Activity 1.Blow up your balloon (not too big) 2.Find a partner 3.Stand back to back 4.(Instructor places dot) 5.Describe to your partner where dot is on your balloon. 6.Partner asks questions and marks theirs. What is difficult about communicating this?
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Balloon Activity 1.Mark North Pole as “N-90 º ” 2.Mark South Pole as “S-90 º ” 3.Draw Equator line, Mark as “0 º ” Latitude 4.Mark Northern Hemisphere “NH” 5.Draw 2 Latitude lines marking ‘N30 º ’ & ‘N60 º ’ 6.Draw a large “X” on the North Pole (Perpendicular Lines!) 7.Divide Equator circle into 4 equal parts. (4 Longitudinal lines: ‘0 º ’, ‘E90 º ’, ‘W90 º ’, ‘180 º ’, ) “0 º ” is the Prime Meridian or Greenwich Meridian “180 º is International Dateline
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Balloon Activity 30ºN 60ºN 0º 90ºS 90ºW 90ºE 90ºN
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Flat Map with Lat./ Long. 90ºE90ºW 0º Prime Meridian 179ºE 179ºW 0º 30ºN 60ºN 30ºS 60ºS
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Army Pacific Coordinates Korea: LatitudeLongitude -Red Cloud 37° 33’N127° 00’E -Humphreys 36° 58’N127° 02’E - Yongsan 37° 31’N126° 58’E - Daegu 35° 49’N128° 35’E Pacific: -Richardson 61° 15’N149° 41’W -Wainwright 64° 82’N147° 68’W -Greely 64° 54’N157° 51’W -Zama 35° 30’N139° 23’E -Torii Station26° 08 N127° 30’ E -Kwajalein 08° 43’N167° 43’E Hawaii: - Hilo- 19° 43’N155° 5’W - Honolulu 21° 20’N157° 55’W - Kaneohe Bay MCAS21° 27’N157° 46’W - Wahiawa 21° 3’N158° 2’W
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