Pre Calculus
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The function is the foundation for further study in mathematics and the core of a Pre Calculus Course
This is a water vortex fountain called Charybdis located at Seaham Hall, Sunderland.
The sirens Charybdis and Scylla resided in the Sicilian Sea. Homer tells us that because Charybdis had stolen the oxen of Hercules, Zeus struck her with a thunderbolt and changed her into a whirlpool whose vortex swallowed up ships. In Charybdis the circular movement of water inside a transparent acrylic cylinder forms an air-core vortex in the centre. Steps wrap around the cylinder and allow spectators to view the vortex from above. The cylinder was manufactured in Grand Junction, Colorado.
Charybdis is William Pye’s largest vortex water sculpture to date, and he has used for only the second time the clear acrylic polymer he employed in Clearwater Cube. This material has enabled Pye to extend his sculptural language and to explore more ways in which to challenge the wayward element of water. A high level of water filtration is essential for maintaining transparency and thereby expressing the drama of the vortex.
Limits are studied in Pre Calculus as well:
"It is known that there is an infinite number of worlds, simply because
there is an infinite amount of space for them to be in. However, not
every one of them is inhabited. Therefore, there must be a finite
number of inhabited worlds. Any finite number divided by infinity is as
near to nothing as makes no odds, so the average population of all
the planets in the universe can be said to be zero. From this it follows
that the population of the universe is also zero, and that any people
you may meet from time to time are merely the product of a deranged
imagination. "
-Douglas Adams (1952 - 2001), Hitchhiker's Guide series
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