This site, geared toward English as a Second Language students, provides "Water Under the Sink" as a reading exercise and audio translation. Multiple choice questions, vocabulary practice, close exercises, crosswords, closed questions,...

This interactive brainteaser from the NOVA: "Voyage of Doom" Web site challenges you to figure out what causes an object to sink.

A review of the sinking of a South Korean ship by North Korea, & the actions of retribution taken so far. The final discussion revolves around the critical importance that China plays in this, and the influence it can lever either...

Young scholars use modeling clay, a material that is denser than water and thus ordinarily sinks in water, to discover the principle of buoyancy. They begin by designing and building boats out of clay that will float in water, and then...

An extensive history of the Confederate submarine, H.L.Hunley, the first submarine to sink a warship. Also information about two earlier prototypes.

An informative new resource devoted to the RMS Titanic! Click on any of the main topics for additional details on construction, maiden voyage, sinking of the ship, survivors, artifacts, newspaper articles, videos, and more.

This site provides a short article on the history of the first submarine to engage and sink a warship. Many links to information about its history, preservation and excavation. Includes original US and Confederate Navy documents.

Article explaining what halocarbons are, where they occur in nature as well as man-made sources, how they are used, and their negative environmental impact. (Published: October 28, 2011)

Interesting information and fun facts about the sinking of the Titanic disaster in 1912.

The Carnot cycle is described, illustrated and explained. The Carnot efficiency equation is given and interactive JavaScript form allows the visitor to investigate the effect of the reservoir temperature and the sink temperature upon the...

Read about the sinking of the Luisitania in 1915 and find out about how it affected the American desire to enter World War I.

NOVA explores the basic principle of buoyancy. Also included at this site are some interesting brain-teasers related to the topic.

Thought provoking entry discusses the many outrageous ideas about the so-called mysterious disappearances of the Bermuda Triangle area in the Atlantic Ocean.

Concise account of the destruction of the German navy's flagship, the Bismarck, during World War II.

Describes the events leading up to America's entry into World War I and the changes that took place in America soon after. These included legislation such as the Selective Service Act and the Espionage and Sedition Acts, protests by...

From the man who led the evacuation of USS Arizona to the fighter pilot who took to the skies in his pajamas, learn the stories of eight of the many servicemen who distinguished themselves on one of the darkest days in American military...

Article presents facts about the attitude of Americans towards the war, the reasons for US entry, and significant events.

Thirty interesting facts about World War 1 include the causes of the Great War, the American Expeditionary Force (AEF), the countries of the Allies and Central Powers, the American troops, WW1 weapons and the different types of warfare...