W4D film or 4-D film is a marketing term for an entertainment presentation system combining a 3D film with physical effects that occur in the theatre in synchronization with the film. Effects simulated in a 4D film may include rain, mist, bubbles, fog or smoke, wind, temperature changes, strobe lights, scent, vibration and motion. Seats in 4D venues may vibrate or move a few centimeters during the presentations. Other common chair effects include air jets, water sprays, and arm and back ticklers. Auditorium effects may include smoke, rain, lightning, bubbles, and smell.
WCode Adam is a missing-child safety program in the United States and Canada, originally created by Walmart retail stores in 1994. This type of alert is generally regarded as having been named in memory of Adam Walsh, the 6-year-old son of John Walsh.
WThe London Inter-Bank Offered Rate is an interest-rate average calculated from estimates submitted by the leading banks in London. Each bank estimates what it would be charged were it to borrow from other banks. The resulting average rate is usually abbreviated to Libor or LIBOR, or more officially to ICE LIBOR. It was formerly known as BBA Libor (for British Bankers' Association Libor or the trademark bba libor) before the responsibility for the administration was transferred to Intercontinental Exchange. It is the primary benchmark, along with the Euribor, for short-term interest rates around the world. Libor will be phased out at the end of 2021, and market participants are being encouraged to transition to risk-free interest rates.
WThe Manned Maneuvering Unit (MMU) is an astronaut propulsion unit that was used by NASA on three Space Shuttle missions in 1984. The MMU allowed the astronauts to perform untethered extravehicular spacewalks at a distance from the shuttle. The MMU was used in practice to retrieve a pair of faulty communications satellites, Westar VI and Palapa B2. Following the third mission the unit was retired from use. A smaller successor, the Simplified Aid For EVA Rescue (SAFER), was first flown in 1994, and is intended for emergency use only.
WPlanking is an activity consisting of lying in a face down position, sometimes in an unusual or incongruous location. The palms of the hands are typically touching the sides of the body and the toes are typically touching the ground. Some players compete to find the most unusual and original location in which to play. The term planking refers to mimicking a wooden plank. Planking can include lying flat on a flat surface, or holding the body flat while it is supported in only some regions, with other parts of the body suspended. Many participants in planking have photographed the activity in unusual locations and have shared such pictures through social media.
WRosa 'Henry Kelsey' is a bright red, Hybrid 'Kordesii' rose cultivar, bred by Canadian rose breeder, Felicitas Svejda. It was introduced in Canada in 1984 by Agriculture and Agri-Food Canada. It is one of the tallest of the Canadian Explorer roses that Svejda developed and named in honour of legendary Canadian explorers.
WRosa 'Heritage' is a pink shrub rose cultivar, bred by British rose breeder, David C. H. Austin and introduced into the UK by David Austin Roses Limited (UK) in 1984. The rose is one of the most popular roses of the David Austin English Rose Collection.
WRosa 'Ingrid Bergman' is a red hybrid tea rose, bred by the Danish rose growers Pernille and Mogens Olesen and introduced by their company Poulsen Roser in 1984. It is a cross between the red hybrid tea 'Precious Platinum' and an unnamed seedling. It was named in honor of the Swedish actress Ingrid Bergman (1915–1982).
WThe Russell 2000 Index is a small-cap stock market index that makes up the smallest 2,000 stocks in the Russell 3000 Index. It was started by the Frank Russell Company in 1984. The index is maintained by FTSE Russell, a subsidiary of the London Stock Exchange Group.
WXenotransplantation, or heterologous transplant, is the transplantation of living cells, tissues or organs from one species to another. Such cells, tissues or organs are called xenografts or xenotransplants. It is contrasted with allotransplantation, syngeneic transplantation or isotransplantation and autotransplantation.