|
Glass Bottom Boat
A glass-bottom boat is a boat with sections of glass, panoramic bottom glass or other suitable transparent material, below the waterline allowing passengers to observe the underwater environment from within the boat. The view through the glass bottom is better than simply looking into the water from above, because one does not have to look through optically erratic surface disturbances. The effect is similar to that achieved by a diving mask, while the passengers are able to stay dry and out of the water. Use Glass-bottom boats are used for giving tours, as they are usually designed to allow the maximum number of tourists to view out the glass bottom. Glass-bottom boats are in use in many seaside tourist destinations as well as lake towns. Typical tours in these boats include views of underwater flora and fauna, reefs, shipwrecks, and other underwater sights. History The glass-bottom boat was invented in 1878 by two men, Hullam Jones and Philip Morrell, in Marion County, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glass Bottom Boat Looker 370 - 13
Glass is an amorphous ( non-crystalline) solid. Because it is often transparent and chemically inert, glass has found widespread practical, technological, and decorative use in window panes, tableware, and optics. Some common objects made of glass are named after the material, e.g., a "glass" for drinking, "glasses" for vision correction, and a "magnifying glass". Glass is most often formed by rapid cooling (quenching) of the molten form. Some glasses such as volcanic glass are naturally occurring, and obsidian has been used to make arrowheads and knives since the Stone Age. Archaeological evidence suggests glassmaking dates back to at least 3600 BC in Mesopotamia, Egypt, or Syria. The earliest known glass objects were beads, perhaps created accidentally during metalworking or the production of faience, which is a form of pottery using lead glazes. Due to its ease of formability into any shape, glass has been traditionally used for vessels, such as bowls, vases, bottles, j ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transparency (optics)
In the field of optics, transparency (also called pellucidity or diaphaneity) is the physical property of allowing light to pass through the material without appreciable light scattering by particles, scattering of light. On a macroscopic scale (one in which the dimensions are much larger than the wavelengths of the photons in question), the photons can be said to follow Snell's law. Translucency (also called translucence or translucidity) is the physical property of allowing light to pass through the material (with or without scattering of light). It allows light to pass through but the light does not necessarily follow Snell's law on the macroscopic scale; the photons may be scattered at either of the two interfaces, or internally, where there is a change in the index of refraction. In other words, a translucent material is made up of components with different indices of refraction. A transparent material is made up of components with a uniform index of refraction. Transparent m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optics
Optics is the branch of physics that studies the behaviour and properties of light, including its interactions with matter and the construction of optical instruments, instruments that use or Photodetector, detect it. Optics usually describes the behaviour of visible light, visible, ultraviolet, and infrared light. Light is a type of electromagnetic radiation, and other forms of electromagnetic radiation such as X-rays, microwaves, and radio waves exhibit similar properties. Most optical phenomena can be accounted for by using the Classical electromagnetism, classical electromagnetic description of light, however complete electromagnetic descriptions of light are often difficult to apply in practice. Practical optics is usually done using simplified models. The most common of these, geometric optics, treats light as a collection of Ray (optics), rays that travel in straight lines and bend when they pass through or reflect from surfaces. Physical optics is a more comprehensive mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diving Mask
A diving mask (also half mask, dive mask or scuba mask) is an item of diving equipment that allows Underwater diving, underwater divers, including scuba diving, scuba divers, free-diving, free-divers, and snorkeling, snorkelers, to see clearly underwater. Surface supplied diving, Surface supplied divers usually use a full face mask or diving helmet, but in some systems the half mask may be used. When the human eye is in direct contact with water as opposed to air, its normal environment, light entering the eye is refracted by a different angle and the eye is unable to Focus (optics), focus the light on the retina. By providing an air space in front of the eyes, the eye is able to focus nearly normally. The shape of the air space in the mask slightly affects the ability to focus. Corrective lenses can be fitted to the inside surface of the viewport or contact lenses may be worn inside the mask to allow normal vision for people with focusing defects. When the diver descends, the am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tourist
Tourism is travel for pleasure, and the commercial activity of providing and supporting such travel. UN Tourism defines tourism more generally, in terms which go "beyond the common perception of tourism as being limited to holiday activity only", as people "travelling to and staying in places outside their usual environment for not more than one consecutive year for leisure and not less than 24 hours, business and other purposes". Tourism can be domestic (within the traveller's own country) or international. International tourism has both incoming and outgoing implications on a country's balance of payments. Between the second half of 2008 and the end of 2009, tourism numbers declined due to a severe economic slowdown (see Great Recession) and the outbreak of the 2009 H1N1 influenza virus. These numbers, however, recovered until the COVID-19 pandemic put an abrupt end to the growth. The United Nations World Tourism Organization has estimated that global international tourist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glass Floor
Glass floors are made with transparent glass when it is useful to view something from above or below; whereas translucent glass is used when there is no need to view through. In either case, toughened glass is usually chosen, for its durability and resistance to breakage. Flooring Translucent floors are sometimes set into outdoor sidewalks and pavements, or the floors of well-lit interior spaces, to daylight the space below. These are generally called pavement lights, and have a long history. Glass as a flooring material is used in both residential and commercial structures. Special hollow glass blocks known as '"glass pavers" are often used in combination with a metal frame. Glass floors are often lit from below with natural or artificial light, or may be treated as ordinary floor surfaces illuminated from above. A German manufacturer of squash court floors has diversified into making glass floors for other sports, such as a glass basketball court. Their glass floor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reef
A reef is a ridge or shoal of rock, coral, or similar relatively stable material lying beneath the surface of a natural body of water. Many reefs result from natural, abiotic component, abiotic (non-living) processes such as deposition (geology), deposition of sand or wave erosion planning down rock outcrops. However, reefs such as the coral reefs of tropical waters are formed by biotic component, biotic (living) processes, dominated by corals and coralline algae. Artificial reefs, such as shipwrecks and other man-made underwater structures, may occur intentionally or as the result of an accident. These are sometimes designed to increase the physical complexity of featureless sand bottoms to attract a more diverse range of organisms. They provide shelter to various aquatic animals which help prevent extinction. Another reason reefs are put in place is for aquaculture, and fish farmers who are looking to improve their businesses sometimes invest in them. Reefs are often quite n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shipwrecks
A shipwreck is the wreckage of a ship that is located either beached on land or sunken to the bottom of a body of water. It results from the event of ''shipwrecking'', which may be intentional or unintentional. There were approximately three million shipwrecks worldwide as of January 1999, according to Angela Croome, a science writer and author who specialized in the history of underwater archaeology (an estimate rapidly endorsed by UNESCO and other organizations). When a ship's crew has died or abandoned the ship, and the ship has remained adrift but unsunk, they are instead referred to as ''ghost ships''. Types Historic wrecks are attractive to maritime archaeologists because they preserve historical information: for example, studying the wreck of revealed information about seafaring, warfare, and life in the 16th century. Military wrecks, caused by a skirmish at sea, are studied to find details about the historic event; they reveal much about the battle that occur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marion County, Florida
Marion County is a county located in the North Central region of the U.S. state of Florida. As of the 2020 United States census, the population was 375,908. Its county seat is Ocala. Marion County comprises the Ocala, Florida Metropolitan Statistical Area. It includes part of Ocala National Forest, which also extends into three other counties. History Native Americans Evidence of ancient indigenous cultures has been found in Marion County, as well as of the earliest encounter between European explorers and historic indigenous peoples. In 1976, an archaeological investigation found ancient artifacts in Marion County that appear to be the oldest in mainland United States. Excavations at an ancient stone quarry (on the Container Corporation of America site (8Mf154) in Marion County) yielded "crude stone implements". Thousands of pieces of chert were found at the site. These showed signs of extensive wear and were found in deposits below those holding Paleo-Indian artifacts. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silver Springs, Florida
Silver Springs is an unincorporated community and census-designated place (CDP) in Marion County of northern Florida. It is the site of the Silver Springs, a group of artesian springs and an historic tourist attraction that is now part of Silver Springs State Park. The community is part of the Ocala metropolitan area. It was first listed as a CDP for the 2020 census, when it had a population of 2,844. One of Florida's first tourist attractions, the springs drew visitors even before the U.S. Civil War. Glass-bottom boats have been a popular way to see the complex. A small amusement park with various animals, a concert stage, a carousel, and exhibits also developed. History Silver Springs was founded in 1852. Since the mid-19th century, the natural environment of Silver Springs has attracted visitors from throughout the United States. The glass-bottom boat was invented and tours of the springs began in the late 1870s. In the 1920s, W. Carl Ray and W.M. "Shorty" Davids ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tobermory, Ontario
Tobermory is a small community located at the northern tip of the Bruce Peninsula, in Bruce County, Ontario. It is part of the municipality of Northern Bruce Peninsula. It is northwest of Toronto. The closest city is Owen Sound, south of Tobermory and connected by Highway 6. Naval surveyor Henry Bayfield originally named this port Collins Harbour. Due to similar harbour conditions it was renamed after Tobermory, the largest settlement on the Isle of Mull in the Scottish Inner Hebrides. The community is known as the "freshwater SCUBA diving capital of the world" because of the numerous shipwrecks that lie in the surrounding waters, especially in Fathom Five National Marine Park. Tobermory and the surrounding area are popular vacation destinations. The town lies north of the Bruce Peninsula National Park. The passenger-car ferry connects Tobermory to Manitoulin Island in Lake Huron. Tobermory is also the northern terminus of the Bruce Trail and has twin harbours, known lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Barrier Reef
The Great Barrier Reef is the world's largest coral reef system, composed of over 2,900 individual reefs and 900 islands stretching for over over an area of approximately . The reef is located in the Coral Sea, off the coast of Queensland, Australia, separated from the coast by a channel wide in places and over deep. The Great Barrier Reef can be seen from outer space and is the world's biggest single structure made by living organisms. This reef structure is composed of and built by billions of tiny organisms, known as coral polyp (zoology), polyps. It supports a wide diversity of life and was selected as a World Heritage Site in 1981. CNN labelled it one of the Seven Wonders of the World#Seven Natural Wonders of the World, Seven Natural Wonders of the World in 1997. Australian World Heritage places included it in its list in 2007. The Queensland National Trust named it a state icon of Queensland in 2006. A large part of the reef is protected by the Great Barrier Reef Mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
