Auxiliary Territorial Service in the context of "Monument to the Women of World War II"

Elizabeth II (Elizabeth Alexandra Mary; 21 April 1926 – 8 September 2022) was Queen of the United Kingdom and other Commonwealth realms from 6 February 1952 until her death in 2022. She was queen regnant of 32 sovereign states during her lifetime and was the monarch of 15 realms at her death. Her reign of 70 years and 214 days is the longest of any British monarch, the second-longest of any sovereign state, and the longest of any queen regnant in history.

Elizabeth was born in Mayfair, London, during the reign of her paternal grandfather, King George V. She was the first child of the Duke and Duchess of York (later King George VI and Queen Elizabeth the Queen Mother). Her father acceded to the throne in 1936 upon the abdication of his brother Edward VIII, making the ten-year-old Princess Elizabeth the heir presumptive. She was educated privately at home and began to undertake public duties during the Second World War, serving in the Auxiliary Territorial Service. In November 1947, she married Philip Mountbatten, a former prince of Greece and Denmark. Their marriage lasted 73 years until his death in 2021. They had four children: Charles, Anne, Andrew, and Edward.

A searchlight (or spotlight) is an apparatus that combines an extremely bright source (traditionally a carbon arc lamp) with a mirrored parabolic reflector to project a powerful beam of light of approximately parallel rays in a particular direction. It is usually constructed so that it can be swiveled about. The most common element used in modern searchlights is xenon (Xe). However, rare-earth elements such as lanthanum (La) and cerium (Ce) are used in phosphors to improve light quality in some specialized searchlights.

Fleet management is the management of a company's vehicles and other assets. This includes commercial motor vehicles such as cars, vans, trucks, and specialist machinery, as well as ships, aircraft, and rail cars. The discipline is applied in various sectors, from commercial logistics and public transport to humanitarian aid operations. The scope of fleet management covers the entire lifecycle of these assets, from procurement and financing to operations, maintenance, and eventual disposal.

The primary goals of fleet management are to reduce costs, improve efficiency and productivity, enhance safety, and ensure compliance with government regulations. Modern fleet management often involves fleet digitalization, the process of using technology to transform operations from manual to data-driven methods. These functions can be handled by an in-house department or outsourced to a specialized fleet management provider.

Muzzle velocity is the speed of a projectile (bullet, pellet, slug, ball/shots or shell) at the moment it leaves the end of a gun's barrel (i.e. the muzzle). Firearm muzzle velocities range from approximately 120 m/s (390 ft/s) to 370 m/s (1,200 ft/s) in black powder muskets, to more than 1,200 m/s (3,900 ft/s) in modern rifles with high-velocity cartridges such as the .220 Swift and .204 Ruger, all the way to 1,700 m/s (5,600 ft/s) for tank guns firing kinetic energy penetrator ammunition. To simulate orbital debris impacts on spacecraft, NASA launches projectiles through light-gas guns at speeds up to 8,500 m/s (28,000 ft/s).Several factors, including the type of firearm, the cartridge, and the barrel length, determine the bullet's muzzle velocity.

A boilersuit (or boiler suit), also known as coveralls, is a loose-fitting garment covering the whole body except for the head, hands and feet.