Hades is the Ancient Greek god of the Underworld, the place where human souls go after death. In time, his name became synonymous with his realm. It has to be said unsurprisingly – since he barely left it.

The Industrial Revolution, now also known as the First Industrial Revolution, was the transition to new manufacturing processes in Europe and the United States, in the period from about 1760 to sometime between 1820 and 1840. This transition included going from hand production methods to machines, new chemical manufacturing and iron production processes, the increasing use of steam power and water power, the development of machine tools and the rise of the mechanized factory system. The Industrial Revolution also led to an unprecedented rise in the rate of population growth.

Levels of air pollution rose during the Industrial Revolution, sparking the first modern environmental laws to be passed in the mid-19th century.

A jet engine is a type of reaction engine discharging a fast-moving jet that generates thrust by jet propulsion. While this broad definition can include rocket, water jet, and hybrid propulsion, the term jet engine typically refers to an airbreathing jet engine such as a turbojet, turbofan, ramjet, or pulse jet. In general, jet engines are internal combustion engines.

Klondike Gold Rush (was a migration by an estimated 100,000 prospectors to the Klondike region of the Yukon, in north-western Canada, between 1896 and 1899. Gold was discovered there by local miners on August 16, 1896; when news reached Seattle and San Francisco the following year, it triggered a stampede of prospectors. Some became wealthy, but the majority went in vain. It has been immortalized in artifacts, films, games, literature, and photographs)

Lawrence of Arabia was the name given to a British Intelligence Officer, Thomas Edward Lawrence, who fought alongside Arab guerrilla forces in the Middle East during the First World War.

Molotov Cocktail (also known as a petrol bomb, gasoline bomb, bottle bomb, poor man's grenade, fire bomb (not to be confused with an actual fire bomb), fire bottle or just Molotov, sometimes shortened as Molly, is a generic name used for a variety of bottle-based improvised incendiary weapons)

A more enjoyable one........

Break time........................

Nautilus - (from the Latin form of the original Ancient Greek: ναυτ?λος, 'sailor') is a pelagic marine mollusc of the cephalopod family Nautilidae, the sole extant family of the superfamily Nautilaceae and of its smaller but near equal suborder, Nautilina. Nautilidae, both extant and extinct, are characterized by involute or more or less convolute shells that are generally smooth, with compressed or depressed whorl sections, straight to sinuous sutures, and a tubular, generally central siphuncle. Having survived relatively unchanged for hundreds of millions of years, nautiluses represent the only living members of the subclass nautiloidea, and are often considered "living fossils".

Nautilus shell

....... cousin!

The octopus is a soft-bodied, eight-limbed mollusc of the order Octopoda. Around 300 species are recognised, and the order is grouped within the class Cephalopoda with squids, cuttlefish, and nautiloids.

POPPY (is the code name given to a series of U.S. intelligence satellites operated by the National Reconnaissance Office. The POPPY satellites recorded ELINT data, targeting radar installations in the Soviet Union and Soviet naval ships at sea)

Quicksilver is the alternative name for the metal Mercury. Mercury, atomic number 80 on the periodic table, is a heavy, silvery-white liquid metal.