Tuesday, September 04, 2012

Fatitude! Prime rib! My little archipelago! Geo Magnet 9.4.12

Geo Magnet 9.4.12 by trudeau
Geo Magnet 9.4.12, a photo by trudeau on Flickr.

Your teacher remembers "latitude" by the rhyming word, "fatitude." A harmless mnemonic.

Can you get a prime rib in Greenwich, England? yes, you can. Medium rare, if you will! You can also see the Royal Observatory, the place where the Prime Meridian was established.

In history, latitude was calculated by observing with quadrant or astrolabe the inclination of the sun or of charted stars. But longitude seemed an insoluble problem.

About 1773 John Harrison, a self-educated English clockmaker, invented the marine chronometer, says Wikipedia. It was a key piece in solving the problem of accurately establishing longitude at sea, thus revolutionising and extending the possibility of safe long distance sea travel.[3]

A US archipelago: the Florida Keys.

Bring an orange or other orb if you want to make a papier mache hemisphere in class.

Indie work -

A comparison essay on the geography of storms Isaac and Katrina, '05.