Hydraulic computer from 1948 designed to compute economic patterns of it’s time, with water representing the variable of money - video embedded below:
Extract from We Make Money Not Art:
The Phillips Hydraulic Computer (known as Monetary National Income Analogue Computer or MONIAC in the U.S.) was an hydro-mechanical computer created in 1949 by Professor Bill Phillips to model the economic processes of the United Kingdom. The 2 metres tall analogue computer used the movement of coloured water around a system of tanks, pipes, sluices and valves to represent the stocks and flows of a national economy. The flow of water (which symbolized money) between the tanks (which stood for specific national expenses, such as health or education) was determined by economic principles and the settings for various parameters. Different economic parameters, such as tax rates and investment rates, could be entered by setting the valves which controlled the flow of water about the computer. Users could experiment with different settings and note the effect on the model.
This is Ripley, last survivor of the Nostromo, signing off.
Alien (1979; dir. Ridley Scott)
The Empyrean, from The Divine Comedy (1861-1868), Gustave Doré
The Empyrean, “from the Medieval Latin empyreus, an adaptation of the Ancient Greek ἔμπυρος empyrus ”in or on the fire (pyr)”, is a region described in the the Paradiso portion of Dante’s Divine Comedy as a place beyond even the highest spheres of Heaven, the dwelling place of God and angels. In The Divine Comedy, Dante is “enveloped by [a] veil of radiance” as he ascends to the Empyrean.
Some medieval writers conceived of it as a celestial sphere formed from pure fire, but others contested that it burned with light rather than elemental fire, as Thomas Aquinas described in the Summa Theologica: "wholly luminous… that heaven is called the empyrean, not from its fiery heat, but from its brightness".
Horizontally and vertically tileable version of the forest background from Super Mario World.