noaas whiting s 329
noaas whiting s 329 , was an american survey ship that was in commission in the national oceanic and atmospheric administration noaa from 1970 to 2003. previously, she had been in commission in the united states coast and geodetic survey from 1963 to 1970 as usc and gs whiting css 29 .. in 2005 the ship was transferred to mexico, and she was commissioned in the mexican navy as arm ro tuxpan .
fishing boats are generally small, often little more than 30 meters 98 ft but up to 100 metres 330 ft . the hull of a mass-produced fiberglass sailboat is constructed from a mold, while the steel hull of a cargo ship is made from large sections welded together as they are built. generally, construction starts with the hull, and on vessels over about 30 meters 98 ft , by the laying of .
hms lady nelson 1798
lady nelson entered bass strait itself on 7 december when grant sighted a . george, which was bound for the derwent from port jackson, shortly after leaving twofold bay and its master gave a boat 39s compass to symons to replace those lost in the storm. the bad weather continued: on 5 november 39the main top-sail blown out of the bolt rope and was lost 39, on 6 november 39at 4 pm took in all sail .
history of fishing
the boats had narrow, . it was the development of inexpensive fiberglass rods, synthetic fly lines, and monofilament leaders, however, in the early 1950s, that revived the popularity of fly fishing. in recent years, interest in fly fishing has surged as baby boomers have discovered the sport. movies such as robert redford 39s film a river runs through it, starring cr sheffer and brad pitt .
timeline of united states inventions 18901945
1936 bass guitar. the bass guitar is a stringed instrument played primarily with the fingers or thumb either by plucking, slapping, popping, tapping, or thumping , or by using a plectrum. the bass guitar is similar in appearance and construction to an electric guitar, but with a longer neck and scale length, and four, five, or six strings.
noaas whiting s 329
noaas whiting s 329 , . a 16-foot 4.9-meter boston whaler fiberglass-hulled boat and 17-foot 5.2-meter monark aluminum-hulled boat. at the time of her decommissioning, whiting was the most technologically advanced hydrographic survey platform in the world. she and her survey launches were outfitted with modern multibeam echosounders and sidescan sonars, allowing efficient and rapid .
naval submarine medical research laboratory
diving work boat the nsmrl auditory laboratory includes a large, 1,000 m3 anechoic chamber. the suspended cable floor and fiberglass wedges provide an echo-free environment that is essential for efforts on spatialized auditory displays and transducer evaluation. additionally, there are ten instrumented sound-proof booths and a reverberant room. these facilities are integral to the work on .
a boat displaces its weight in water, regardless whether it is made of wood, steel, fiberglass, or even concrete. if weight is added to the boat, the volume of the hull dn below the waterline will increase to keep the balance above and below the surface equal. boats have a natural or designed level of buoyancy. exceeding it will cause the boat first to ride lower in the water, second to .
seal delivery vehicle
the seal delivery vehicle sdv is a manned submersible and a type of swimmer delivery vehicle used to deliver united states navy seals and their equipment for special operations missions. it is also operated by the royal navy 39s special boat service, which operates 3 sdv 39s.. the sdv, which has been in continuous service since 1983, is used primarily for covert or clandestine missions to denied .
noaas john n. cobb
noaa ship john n. cobb r 552 was a national oceanic and atmospheric administration research vessel in commission from 1970 to 2008. she was named for john nathan cobb and was the oldest commissioned ship in the noaa fleet when she was decommissioned, having previously served in the united states department of the interiors fish and wildlife service from 1950 to 1956 and in the united .
a polychlorinated biphenyl pcb is an organic chlorine compound with the formula c 12 h 10x cl x.polychlorinated biphenyls were once widely deployed as dielectric and coolant fluids in electrical apparatus, carbonless copy paper and in heat transfer fluids.. because of their longevity, pcbs are still widely in use, even though their manufacture has declined drastically since the 1960s .
noaas rude s 590
noaas rude s 590 was an american rude-class hydrographic survey ship that was in commission in the national oceanic and atmospheric administration noaa from 1970 to 2008. prior to its noaa career, it was in commission in the united states coast and geodetic survey from 1967 to 1970 as usc and gs rude asv 90 .it was named for gilbert t. rude, former chief of the division of coastal surveys of .
this is a record of material that was recently featured on the main page as part of did you know dyk . recently created new articles, greatly expanded former stub articles and recently promoted good articles are eligible you can submit them for consideration.. archives are generally grouped by month of main page appearance.
a dive boat is a boat that recreational divers or professional scuba divers use to reach a dive site which they could not conveniently reach by swimming from the shore. dive boats may be propelled by wind or muscle power, but are usually powered by internal combustion engines. some features, like convenient access to the water, are common to all dive boats, while others depend on the specific .
noaas chapman r 446
noaas chapman r 446 was an american fisheries research vessel that was in commission in the national oceanic and atmospheric administration noaa fleet from 1980 to 1998. after the conclusion of her noaa career, she spent several years operating as the university of seven trust marine research vessel r/v chapman.more recently, she has become the curaao-based mothership for the deep-diving .
a submarine pipeline also known as marine, subsea or offshore pipeline is a pipeline that is laid on the seabed or below it inside a trench. in some cases, the pipeline is mostly on-land but in places it crosses water expanses, such as small seas, straits and rivers. submarine pipelines are used primarily to carry oil or gas, but transportation of water is also important.
a sea kayak or touring kayak is a kayak developed for the sport of paddling on open waters of lakes, bays, and the ocean. sea kayaks are seaworthy small boats with a covered deck and the ability to incorporate a spray deck.they trade off the maneuverability of whitewater kayaks for higher cruising speed, cargo capacity, ease of strht-line paddling, and comfort for long journeys.
a fire extinguisher is an active fire protection device used to extinguish or control small fires, often in emergency situations. it is not intended for use on an out-of-control fire, such as one which has reached the ceiling, endangers the user i.e., no escape route, smoke, explosion hazard, etc. , or otherwise requires the expertise of a fire brigade.
instant boats. phil bolger was unconventional in many ways and, among many large boats, yachts and custom designs, took an interest in what he termed evolving crafty ways of building boats. as far back as 1957 he designed poohsticks as a small plywood rowing skiff to be simply and economically built at home originally by his brother . from this simple start he went on to develop a large .