WA cardiac pacemaker, is a medical device that generates electrical impulses delivered by electrodes to cause the heart muscle chambers to contract and therefore pump blood; by doing so this device replaces and/or regulates the function of the electrical conduction system of the heart.
WAn astronaut is a person trained, equipped, and deployed by a human spaceflight program to serve as a commander or crew member aboard a spacecraft. Although generally reserved for professional space travelers, the terms are sometimes applied to anyone who travels into space, including scientists, politicians, journalists and tourists.
WKingsway is a cigarette brand, currently owned by conglomerated British American Tobacco, and manufactured by its subsidiary American Express of London/Ardath Tobacco Company. In Ireland the brand was manufactured by W.D. & H.O. Wills, and in Malaysia the brand is manufactured by Rothmans International.
WA Moon landing is the arrival of a spacecraft on the surface of the Moon. This includes both crewed and robotic missions. The first human-made object to touch the Moon was the Soviet Union's Luna 2, on 13 September 1959.
WThe metal–oxide–semiconductor field-effect transistor, also known as the metal–oxide–silicon transistor, is a type of insulated-gate field-effect transistor that is fabricated by the controlled oxidation of a semiconductor, typically silicon. The voltage of the covered gate determines the electrical conductivity of the device; this ability to change conductivity with the amount of applied voltage can be used for amplifying or switching electronic signals.
WPostal codes used in the United Kingdom, British Overseas Territories and Crown dependencies are known as postcodes. They are alphanumeric and were adopted nationally between 11 October 1959 and 1974, having been devised by the General Post Office. A full postcode is known as a "postcode unit" and designates an area with several addresses or a single major delivery point.
WThe Rolls-Royce Pegasus, formerly the Bristol Siddeley Pegasus, is a turbofan engine originally designed by Bristol Siddeley. It was manufactured by Rolls-Royce plc. The engine is not only able to power a jet aircraft forward, but also to direct thrust downwards via swivelling nozzles. Lightly loaded aircraft equipped with this engine can manoeuvre like a helicopter. In particular, they can perform vertical takeoffs and landings. In US service, the engine is designated F402.
WRosa 'Garden Party' is an ivory hybrid tea rose cultivar created by Herbert C. Swim in 1959. Its parents are the hybrid teas 'Charlotte Armstrong' and 'Peace'.
WThe seal of Mauritania is based on the national flag of Mauritania, which was adopted on 15 August 2017. It contains red, green, and gold emblems. The green symbolizes Islam, the major religion in the nation, the gold represents the sands of the Sahara desert, and the red represents the bloodshed of the people that fought for independence. The crescent and star are also emblems of Islam. The edges read "Islamic Republic of Mauritania" in Arabic and French.
WThe Under Secretary for Political Affairs is currently the fourth-ranking position in the United States Department of State, after the secretary, the deputy secretary, and the deputy secretary of state for management and resources. The current under secretary is Victoria Nuland, who was confirmed by the Senate on April 29, 2021, and began work on May 3, 2021.
WA weather satellite is a type of satellite that is primarily used to monitor the weather and climate of the Earth. Satellites can be polar orbiting, or geostationary.