Water, Waves, and Shipshttp://www.splashvision.com

World biggest video sharing website provides online water world excitement

See Yacht video, Ship Video, beach video, marine videos, cruise videos and under water

entertainment movie clippings

Scien

ce

Scien

ce

Learn About:Scien

ce

Water, Waves & Shipshttp://www.splashvision.com

- Re-supplying at sea- Severe weather at sea - Stability in wind and waves - Wave action on boats and ships -US Coast Guard search and rescue

http://www.splashvision.com

Scien

ce

Scien

ce

Water, Waves & Shipshttp://www.splashvision.com

On the Internet…http://www.splashvision.com

• Celestial Navigation• Traditional Navigation• Dead Reckoning

Learn More About

Scien

ce

A Ship’s stability is especially important while re-supplying at seas

Scien

ce

Water, Waves & Shipshttp://www.splashvision.com

Scien

ce

Typhoon Cobracaught Admiral Hasey’s Third Fleet

unaware in December 1944.

Scien

ce

Water, Waves & Shipshttp://www.splashvision.com

Scien

ce

A ship’s stability is related to its buoyancy and weight.

Think About This:• A large cargo ship is leaving port with its 6 holds

(the area in which a ship carries cargo) full.• It is going to make several stops. • At each port, it will unload some of its cargo leaving a hold

empty or partially empty.• What can the captain order his crew to do in order to

maintain the ship’s stability so that I will not capsize?

Engage in class discussion and then restart video clip fordemonstration of information required for solution(s).

** PAUSE Video Clip Here!

Scien

ce

Water, Waves & Shipshttp://www.splashvision.com

Scien

ce

• Why would the ship roll?• What happens to the ship’s center of gravity when it does roll?

Now, think back to Typhoon Cobra. What do you think happened to the ships caught in the typhoon regarding their instability?

Scien

ce

Water, Waves & Shipshttp://www.splashvision.com

Scien

ce

Waves have several parts:

•Crest - The highest part of the wave above the still-water line. •Trough - The lowest part of the wave below the still-water line. •Height - The vertical distance between the crest and the trough. •Length - The horizontal distance between each crest or each trough.

Scien

ce

Water, Waves & Shipshttp://www.splashvision.com

Scien

ce

Waves can cause several different movements in ships:

• Sway• Heave• Yaw

Waves can affect the navigation of a ship!

Scien

ce

Water, Waves & Shipshttp://www.splashvision.com

Go to websites for•Waves and tides•Ocean currents•Tides and the moon•Tornadoes•Tsunamis

Scien

ce

How would adding water to the boat’s hull, provide additional stability?

* Brainstorm & Research: What Kinds of boat designs would Provide the most stability? Why?

Scien

ce

Water, Waves & Shipshttp://www.splashvision.com

Scien

ce

Scien

ce

Water, Waves & Shipshttp://www.splashvision.com

The effects of water and wave actionare important elements for navigatinga ship and maintaining its stability.