Search results
Results from the WOW.Com Content Network
The generated vibrations are also compared with the natural frequencies of the different parts/sections and adaptions can be done to the structure. On board, noise travels through the structure (mainly low frequencies), more than through the air, so insulating the engine room is not enough as a way to avoid the noise travelling through the boat ...
Springing induced vibrations can already be present in low or moderate sea states when resonant conditions occur between wave lengths present in the wave spectrum and the hull girder natural modes, while whipping typically requires rough sea states before the very local occurring slamming impact has sufficient energy to excite the global ...
The term oyster reef refers to dense aggregations of oysters that form large colonial communities. Because oyster larvae need to settle on hard substrates, new oyster reefs may form on stone or other hard marine debris. Eventually the oyster reef will propagate by spat settling on the shells of older or nonliving oysters. The dense aggregations ...
The dredge is towed through an oyster bed by a boat, picking up the oysters in its path. While dredges collect oysters more quickly, they heavily damage the beds, and their use is highly restricted. Until 1965, Maryland limited dredging to sailboats , and even since then motor boats can be used only on certain days of the week.
The boat is then righted, bailed out, and the sails reset, so that in the event of an uncontrolled capsize, the boat and its occupants are familiar with the procedure and may recover. Most small monohull sailboats can normally be righted by standing or pulling down on the centreboard , daggerboard (or bilgeboard in a scow ) to lift the mast ...
For more than a decade along the East Coast and Gulf of Mexico, millions of farmed oysters, which are grown in cages or bags in tidal areas, have fallen victim to Sudden Unusual Mortality Syndrome ...
Of the 156 German submarines ("U-boats") surrendered to the Allies at the end of World War II, 116 were scuttled by the Royal Navy in Operation Deadlight. Plans called for them to be scuttled in three areas in the North Atlantic Ocean west of Ireland , but 56 of the submarines sank before reaching the designated areas due to their poor material ...
Here’s what experts and science have to say about these well-known food aphrodisiacs — and whether they actually help put people in the mood.