A dune is a landform composed of wind- or water-driven sand. It typically takes the form of a mound, ridge, or hill. An area with dunes is called a dune system or a dune complex. A large dune complex is called a dune field, while broad, flat regions covered with wind-swept sand or dunes, with little or no vegetation, are called ergs or sand seas. Dunes occur in different shapes and sizes, but most kinds of dunes are longer on the stoss (upflow) side, where the sand is pushed up the dune, and have a shorter slip face in the lee side. The valley or trough between dunes is called a dune slack.
A beach is a landform alongside a body of water which consists of loose particles. The particles composing a beach are typically made from rock, such as sand, gravel, shingle, pebbles, etc., or biological sources, such as mollusc shells or coralline algae. Sediments settle in different densities and structures, depending on the local wave action and weather, creating different textures, colors and gradients or layers of material.
A dune buggy — also known as a beach buggy — is a recreational off-road vehicle with large wheels, and wide tires, designed for use on sand dunes, beaches, off-road or desert recreation. The design is usually a topless vehicle with a rear-mounted engine. A dune buggy can be created by modifying an existing vehicle or custom-building a new vehicle.
A winch is a mechanical device that is used to pull in or let out or otherwise adjust the tension of a rope or wire rope.
The Vehicle Assembly Building, or VAB, is a large building at NASA's Kennedy Space Center (KSC) in Florida, designed to assemble large pre-manufactured space vehicle components, such as the massive Saturn V, the Space Shuttle and the Space Launch System, and stack them vertically onto one of three mobile launcher platforms used by NASA. As of March 2022, the first Space Launch System (SLS) rocket was assembled inside in preparation for the Artemis 1 mission, launched on November 16, 2022.
In the United States, Canada and the United Kingdom, grips are camera support equipment technicians in the filmmaking and video production industries. They constitute their own department on a film set and are directed by a key grip. Grips have two main functions: The first is to work closely with the camera department to provide camera support, especially if the camera is mounted to a dolly, crane, or in an unusual position, such as the top of a ladder. Some grips may specialize in operating camera dollies or camera cranes. The second function is to work closely with the electrical department to create lighting set-ups necessary for a shot under the direction of the director of photography.
Grips' responsibility is to build and maintain all the equipment that supports cameras. This equipment, which includes tripods, dollies, tracks, jibs, cranes, and static rigs, is constructed of delicate yet heavy duty parts requiring a high level of experience to operate and move. Every scene in a feature film is shot using one or more cameras, each mounted on highly complex, extremely expensive, heavy duty equipment. Grips assemble this equipment according to meticulous specifications and push, pull, mount or hang it from a variety of settings. The equipment can be as basic as a tripod standing on a studio floor, to hazardous operations such as mounting a camera on a 100 ft crane, or hanging it from a helicopter swooping above a mountain range.
Good Grips perform a crucial role in ensuring that the artifice of film is maintained, and that camera moves are as seamless as possible. Grips are usually requested by the DoP or the camera operator. Although the work is physically demanding and the hours are long, the work can be very rewarding. Many Grips work on both commercials and features.
Great Sand Dunes National Park and Preserve is a national park of the United States that conserves an area of large sand dunes on the eastern edge of the San Luis Valley, and an adjacent national preserve in the Sangre de Cristo Range, in south-central Colorado. The park was originally designated Great Sand Dunes National Monument on March 17, 1932, by President Herbert Hoover. The original boundaries protected an area of 35,528 acres. A boundary change and redesignation as a national park and preserve was authorized on November 22, 2000, and then established on September 24, 2004. The park encompasses 107,342 acres while the preserve protects an additional 41,686 acres for a total of 149,028 acres. The recreational visitor total was 527,546 in 2019.
An off-road vehicle (ORV), sometimes referred to as an off-highway vehicle (OHV), overland vehicle, or adventure vehicle, is considered to be any type of vehicle that is capable of driving off road on non-paved surfaces, such as trails and forest roads that have rough and low-traction surfaces.
A Baja Bug is an original Volkswagen Beetle modified as an all-terrain vehicle to operate off-road, although other versions of air-cooled Volkswagens are sometimes modified as well. Baja bugs often race in off-road desert races such as the Baja 1000. There are different classes for bugs, namely class 11, class 5 1600, and class 5 unlimited. According to desert racing association Score International, class 11 is a stock VW beetle with modifications limited to ground clearance and strength. Class 5 1600 rules state that a 1600 cc VW engine must be used and the car must have the exterior appearance of a "baja bug" with body modification limited to whatever cutting is needed to install a consumer baja kit. Class 5 unlimited is any 4 cylinder VW-style engine, and it must have Baja-style fenders and side panels, and VW-style suspension.
A Jersey barrier, Jersey wall, or Jersey bump is a modular concrete or plastic barrier employed to separate lanes of traffic. It is designed to minimize vehicle damage in cases of incidental contact while still preventing vehicle crossovers resulting in a likely head-on collision. Jersey barriers are also used to reroute traffic and protect pedestrians and workers during highway construction. They are named after the U.S. state of New Jersey which first started using the barriers as separators between lanes of a highway in the 1950s.
Off-roading is the act of driving or riding in a vehicle on unpaved surfaces such as sand, dirt, gravel, riverbeds, mud, snow, rocks, or other natural terrain. Off-roading ranges from casual drives with regular vehicles to competitive events with customized vehicles and skilled drivers.
A sandrail, also called a sand rail, rail, or sand car, is a lightweight off-road motor vehicle specifically built for traveling in sandy terrain. Synonymously referred to as dune buggies, a sandrail is a type of speciality vehicle. They are popularly operated on actual sand dunes. Sandrails can be driven on other types of terrain but are designed specifically for sand.
A motor vehicle has lighting and signaling devices mounted to or integrated into its front, rear, sides, and, in some cases, top. Various devices have the dual function of illuminating the road ahead for the driver, and making the vehicle visible to others, with indications to them of turning, slowing or stopping, etc., with lights also indicating the size of some large vehicles.
Coral Pink Sand Dunes State Park is a state park in southwestern Utah, United States, located between Mount Carmel Junction and Kanab, south and west of U.S. Highway 89 in Kane County. The park features uniquely pink-hued sand dunes located beside red sandstone cliffs.
A bullbar or push bumper is a device installed on the front of a vehicle to protect its front from collisions, whether an accidental collision with a large animal in rural roads, or an intentional collision by police with another vehicle. They vary considerably in size and form, and are normally composed of welded steel or aluminium tubing, or, more recently, moulded polycarbonate and polyethylene materials. The "bull" in the name refers to cattle, which in rural areas sometimes roam onto rural roads and highways.
A paintball tank, also known as a paintball armoured vehicle (PAV) is a vehicle, or a portable structure that resembles a vehicle, sometimes used in the sport of paintball, usually with the intent of military simulation. The purpose of the tank is to provide a mobile shelter for one or several players, from which they may employ their markers against players on the opposing team. Small pneumatic guns, effectively low-powered potato cannons loaded with foam darts, are also often employed against other tanks.
Sand Mountain is a singing sand dune 20 miles (32 km) east of Fallon, Nevada along U.S. Route 50. The dune is two miles long and 600 feet (180 m) high. The sand originates from the ancient Lake Lahontan, that for the most part dried up 9,000 years ago. Sand Mountain Recreation Area is managed by the Bureau of Land Management and is open to off-highway vehicle use. The area is also the only home of the critically imperiled Sand Mountain blue butterfly. The ruins of the Sand Springs Station of the Pony Express are also located within the recreation area. Sport activities such as sandboarding and sand skiing can be practiced at the site.
The SandCat is a composite armored vehicle designed by the then Plasan Sasa of Israel. The SandCat was shown publicly for the first time at AUSA during October 2005. The latest models were shown for the first time at Eurosatory 2018. The SandCat is based on a commercial Ford F-Series chassis. Approximately 700 SandCats have been produced since 2004, and while Plasan has never released complete details, these are known to be in service with at least 16 users across five continents, and in a wide variety of roles that range from Police/internal security to combat/patrol.
The Christmas Valley Sand Dunes are a natural sand dune complex covering 11,000 acres (45 km2) of public lands east of Christmas Valley in Lake County, Oregon, United States, about 100 miles (160 km) southeast of Bend. The area is accessible via the Christmas Valley National Back Country Byway. The dunes are up to 60 feet (18 m) high. It is the largest inland shifting sand dune system in the Pacific Northwest. The dunes are composed mostly of ash and pumice from the eruption of Mount Mazama that formed Crater Lake 7,000 years ago. Approximately 8,900 acres (36 km2) of dunes are open to vehicles.
The Simpson Desert Bike Challenge (SDBC) is an annual staged mountain bike race held in the Simpson Desert of Australia. First held in 1987, the SDBC is run by the non-profit organisation Desert Challenge Inc
