Plot summary
A Mr. Dixwell Hardley approaches Tom with a proposition to help recover sunken treasure. Mr. Hardley was on board a ship which was carrying gold to help finance an illegal revolution. When the ship sank, Mr. Hardley overheard the captain recording the coordinates. Now he wants Tom's help to recover the gold, under the guise of both financing the expedition as well as rewarding Tom with a portion of the recovered treasure.
Unfortunately for Tom, after agreeing to the expedition, he learns that Mr. Hardley is a con-artist, who recently scammed someone out of the oil well rights. Making matters worse, the victim is Barton Keith, a relative of Mary Nestor. Rather than cancel the expedition, Tom decides to carry on in the hopes of restoring Mr. Keith's claims to the oil wells.
Deep Submergence Vessel NR-1 was a unique United States Navy (USN) nuclear-powered ocean engineering and research submarine, built by the Electric Boat Division of General Dynamics at Groton, Connecticut. NR-1 was launched on 25 January 1969, completed initial sea trials 19 August 1969, and was home-ported at Naval Submarine Base New London. NR-1 was the smallest nuclear submarine ever put into operation. The vessel was casually known as "Nerwin" and was never officially named or commissioned. The U.S. Navy is allocated a specific number of warships by the U.S. Congress. Admiral Hyman Rickover avoided using one of those allocations, and he also wanted to avoid the oversight that a warship receives from various bureaus.
Twenty Thousand Leagues Under the Seas: A World Tour Underwater is a classic science fiction adventure novel by French writer Jules Verne.
Simon Lake was a Quaker American mechanical engineer and naval architect who obtained over two hundred patents for advances in naval design and competed with John Philip Holland to build the first submarines for the United States Navy.
Charles Bowers Momsen, nicknamed "Swede", was born in Flushing, New York. He was an American pioneer in submarine rescue for the United States Navy, and he invented the underwater escape device later called the "Momsen lung", for which he received the Navy Distinguished Service Medal in 1929. In May 1939, Momsen directed the rescue of the crew of Squalus (SS-192).
Nuestra Señora de Atocha was a Spanish treasure galleon and the most widely known vessel of a fleet of ships that sank in a hurricane off the Florida Keys in 1622. At the time of her sinking, Nuestra Señora de Atocha was heavily laden with copper, silver, gold, tobacco, gems, and indigo from Spanish ports at Cartagena and Porto Bello in New Granada and Havana, bound for Spain. The Nuestra Señora de Atocha was named for a holy shrine in Madrid, Spain. It was a heavily armed Spanish galleon that served as the almirante for the Spanish fleet. It would trail behind the other ships in the flota to prevent an attack from the rear.
The Secret Warning is Volume 17 in the original The Hardy Boys Mystery Stories published by Grosset & Dunlap.
Mir is a self-propelled deep-submergence vehicle. The project was initially developed by the USSR Academy of Sciences along with Design Bureau Lazurith. Later two vehicles were ordered from Finland. The Mir 1 and Mir 2, delivered in 1987, were designed and built by the Finnish company Rauma-Repola's Oceanics subsidiary. The project was carried out under the supervision of constructors and engineers of the Shirshov Institute of Oceanology.
EPRON, Russian: Экспедиция подводных работ особого назначения (ЭПРОН) "Special Expedition for Underwater Works" —Special-Purpose Underwater Rescue Party, was a government agency of the Soviet Union to salvage valuable cargo and equipment from sunken ships and submarines.
An aquanaut is any person who remains underwater, breathing at the ambient pressure for long enough for the concentration of the inert components of the breathing gas dissolved in the body tissues to reach equilibrium, in a state known as saturation. Usually this is done in an underwater habitat on the seafloor for a period equal to or greater than 24 continuous hours without returning to the surface. The term is often restricted to scientists and academics, though there were a group of military aquanauts during the SEALAB program. Commercial divers in similar circumstances are referred to as saturation divers. An aquanaut is distinct from a submariner, in that a submariner is confined to a moving underwater vehicle such as a submarine that holds the water pressure out. Aquanaut derives from the Latin word aqua ("water") plus the Greek nautes ("sailor"), by analogy to the similar construction "astronaut".
Marine salvage is the process of recovering a ship and its cargo after a shipwreck or other maritime casualty. Salvage may encompass towing, re-floating a vessel, or effecting repairs to a ship. Today, protecting the coastal environment from spillage of oil or other contaminants is a high priority. Before the invention of radio, salvage services would be given to a stricken vessel by any ship that happened to be passing by. Nowadays, most salvage is carried out by specialist salvage firms with dedicated crew and equipment.
Fabien Cousteau is an aquanaut, ocean conservationist, and documentary filmmaker. As the first grandson of Jacques Cousteau, Fabien spent his early years aboard his grandfather's ships Calypso and Alcyone, and learned how to scuba dive on his fourth birthday. From 2000–2002, he was Explorer-at-Large for National Geographic and collaborated on a television special aimed at changing public attitudes about sharks called "Attack of the Mystery Shark". From 2003 to 2006, he produced the documentary "Mind of a Demon" that aired on CBS. With the help of a large crew, he created a 14-foot, 1,200-pound, lifelike shark submarine called "Troy" that enabled him to immerse himself inside the shark world.
SS John Barry was a 7,200-ton American Liberty ship in World War II. The ship was built at one of the Kaiser Shipyards in Portland, Oregon, and launched on 23 November 1941. The John Barry was torpedoed and sunk in the Arabian Sea at position 15.10°N 55.18°E in 1944.
Treasure hunting is the physical search for treasure. For example, treasure hunters try to find sunken shipwrecks and retrieve artifacts with market value. This industry is generally fueled by the market for antiquities. The practice of treasure-hunting can be controversial, as locations such as sunken wrecks or cultural sites may be protected by national or international law concerned with property ownership, marine salvage, sovereign or state vessels, commercial diving regulations, protection of cultural heritage and trade controls.
The 1715 Treasure Fleet was a Spanish treasure fleet returning from the New World to Spain. At two in the morning on Wednesday, July 31, 1715, seven days after departing from Havana, Cuba, under the command of Juan Esteban de Ubilla, eleven of the twelve ships of this fleet were lost in a hurricane near present-day Vero Beach, Florida. Because the fleet was carrying silver, it is also known as the 1715 Plate Fleet. Some artifacts and even coins still wash up on Florida beaches from time to time.
Everblue 2 is a scuba diving adventure game. It is the sequel to the game Everblue. Arika, the developers of both games, followed it with the spiritual sequel Endless Ocean, for the Wii.
Atlantis Submarines is a Canadian passenger submarine company. The company currently has 12 submarines and operates undersea tours in Grand Cayman, Barbados, Aruba, Guam, St. Thomas, Cozumel and in Hawaii at Kona, Maui and Oahu.
Tom Swift and His Submarine Boat, or, Under the Ocean for Sunken Treasure, is Volume 4 in the original Tom Swift novel series published by Grosset & Dunlap.
Merida was a steam cargo ship built in 1906 by William Cramp & Sons of Philadelphia for New York & Cuba Mail Steamship Co., owned and operated by Ward Line, with intention of serving their New York to Havana route.
The Undersea Adventures of Captain Nemo is a Canadian animated television series of five-minute cartoons produced in 1975 by Rainbow Animation in Toronto, Ontario. The series follows the underwater adventures of Captain Mark Nemo and his two young assistants, Christine and Robbie, in their nuclear-powered submarine, the Nautilus.
