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cylinder

A cylinder (from Greek: κύλινδρος, romanized: kulindros, lit. 'roller', 'tumbler') has traditionally been a three-dimensional solid, one of the most basic of curvilinear geometric shapes. Geometrically, it can be considered as a prism with a circle as its base.
This traditional view is still used in elementary treatments of geometry, but the advanced mathematical viewpoint has shifted to the infinite curvilinear surface and this is how a cylinder is now defined in various modern branches of geometry and topology.
The shift in the basic meaning (solid versus surface) has created some ambiguity with terminology. It is generally hoped that context makes the meaning clear. Both points of view are typically presented and distinguished by referring to solid cylinders and cylindrical surfaces, but in the literature the unadorned term cylinder could refer to either of these or to an even more specialized object, the right circular cylinder.

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  1. A

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  2. dave100

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  3. Z

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  4. A

    Can unvented cylinder discharge be connected to this overflow?

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  5. M

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  6. Z

    Preplumbed horizontal unvented cylinder

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  7. Z

    Unvented cylinder with heat only boiler??

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  8. H

    Hot water cylinder only heating top half of tank

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  9. chloeradhsaw

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  10. chloeradhsaw

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  11. M

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  12. R

    Can you have mains pressure cylinder on a back bolier?

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  13. Eddiez

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  14. D

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  15. M

    Leaking drain valve on Hot water cylinder. Advise please

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  16. H

    What happens if you set a flow temperature lower than HW cylinder

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  17. N

    Unvented cylinder size

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  18. N

    Cylinder question any help

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  19. H

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  20. alex567

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