SETI bioastro: Fw: [NOVA] "Lost at Sea: The Search for Longitude"

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From: NOVA<mailto:owner-nova-online_at_franz.wgbh.org>
To: NOVA Bulletin<mailto:nova-online_at_franz.wgbh.org>
Sent: Friday, July 16, 2004 4:15 PM
Subject: [NOVA] "Lost at Sea: The Search for Longitude"

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Next on NOVA: "Lost at Sea: The Search for Longitude"

http://www.pbs.org/nova/longitude/>

Broadcast: July 20, 2004
(NOVA airs Tuesdays on PBS at 8 p.m. Check your local listings as
dates and times may vary.)

It was one of humankind's most epic quests -- a technical problem so
complex that it challenged the best minds of its time, a problem so
important that the nation that solved it would rule the economy of
the world. The problem was establishing longitude when at sea. While
the gentry of the 18th Century looked to the stars for the answer,
an English clockmaker, John Harrison, toiled for decades to solve
the problem using a chronometer. His elegant solution made him an
unlikely hero and remains the basis for most modern forms of
navigation in the world today. This film is both a celebration of
Harrison's invention and an adventure story. An expedition on a
period sailing vessel will demonstrate the life-and-death importance
of finding your longitude while at sea.

Here's what you'll find on the companion Web site:

     Today's Greatest Challenge
     This feature asks leading scientists and engineers to share
     their views of today's greatest scientific and technological
     challenges.

     GPS: The New Navigation
     Use a simplified step-through version of a handheld Global
     Positioning System (GPS) receiver to find out how it can
     pinpoint someone's location on Earth.

     Find Your Longitude (Hot Science)
     In this online activity, find out how to determine your
     longitude anywhere on the Earth by knowing both the time at your
     location and the time at your home port.

     Secrets of Ancient Navigators
     Follow early seafarers as they navigate the seas using
     everything from observing bird behavior and wave types to using
     compasses, astrolabes, and sextants.

Also, Resources and a Teacher's Guide

http://www.pbs.org/nova/longitude/>

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• Previous message: LARRY KLAES: "SETI bioastro: Fw: AURA SPACECRAFT LAUNCHED, TO BETTER UNDERSTAND THE AIR WE BREATHE"

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