Spiral - Revision history

DT Online at 11:34, 19 May 2019

2019-05-19T11:34:57Z

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	[[File:~~TanfieldHouseWedding~~ Aisle.jpg\|280px\|right]]		[[File:Wedding Aisle.jpg\|280px\|right]]

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DT Online: Spiral Wedding Aisle image added

2019-05-19T11:27:35Z

Spiral Wedding Aisle image added

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			[[File:TanfieldHouseWedding Aisle.jpg\|280px\|right]]

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DT Online at 06:57, 13 April 2017

2017-04-13T06:57:53Z

← Older revision		Revision as of 06:57, 13 April 2017
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	=====Description=====		=====Description=====

	An [https://en.wikipedia.org/wiki/Spiral '''Spiral'''] is a line traced by a point which starts at a centre then gets progressively further away ~~from~~ as it travels around it. There are many different ways of drawing spirals each with different mathematical properties.		An [https://en.wikipedia.org/wiki/Spiral '''Spiral'''] is a line traced by a point which starts at a centre then gets progressively further away as it travels around it. There are many different ways of drawing spirals each with different mathematical properties.

DT Online at 09:01, 8 January 2017

2017-01-08T09:01:33Z

← Older revision		Revision as of 09:01, 8 January 2017
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	A [https://en.wikipedia.org/wiki/Gramophone_record '''vynil record'''] groove is a good example of a spiral ''(but the early, antique [https://en.wikipedia.org/wiki/Phonograph '''phonograph'''] cylinders follow a '''[[helix]]'''. '''Spiral staircases''' are also in fact '''[[Helix\|helixes]]''' and not really spirals at all (!) but 3D spirals do exist, examples of which include the springs commonly used as a battery contact in torches and some [https://en.wikipedia.org/wiki/Bithynia_tentaculata snail shells] .		A [https://en.wikipedia.org/wiki/Gramophone_record '''vynil record'''] groove is a good example of a spiral ''(but the early, antique [https://en.wikipedia.org/wiki/Phonograph '''phonograph'''] cylinders follow a '''[[helix]]'''. '''Spiral staircases''' are also in fact '''[[Helix\|helixes]]''' and not really spirals at all (!) but 3D spirals do exist, examples of which include the springs commonly used as a battery contact in torches and some [https://en.wikipedia.org/wiki/Bithynia_tentaculata snail shells])''.

DT Online at 07:40, 13 October 2016

2016-10-13T07:40:30Z

← Older revision		Revision as of 07:40, 13 October 2016
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	=====Description=====		=====Description=====

	An [https://en.wikipedia.org/wiki/Spiral '''Spiral'''] is a line traced by a point which starts at a centre ~~which it~~ gets progressively further away from as it travels around it. There are many different ways of drawing spirals each with different mathematical properties.		An [https://en.wikipedia.org/wiki/Spiral '''Spiral'''] is a line traced by a point which starts at a centre then gets progressively further away from as it travels around it. There are many different ways of drawing spirals each with different mathematical properties.

DT Online: Added Template

2016-06-02T19:15:29Z

Added Template

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			=====Description=====

	An [https://en.wikipedia.org/wiki/Spiral '''Spiral'''] is a line traced by a point which starts at a centre which it gets progressively further away from as it travels around it. There are many different ways of drawing spirals each with different mathematical properties.		An [https://en.wikipedia.org/wiki/Spiral '''Spiral'''] is a line traced by a point which starts at a centre which it gets progressively further away from as it travels around it. There are many different ways of drawing spirals each with different mathematical properties.
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	A [https://en.wikipedia.org/wiki/Gramophone_record '''vynil record'''] groove is a good example of a spiral ''(but the early, antique [https://en.wikipedia.org/wiki/Phonograph '''phonograph'''] cylinders follow a '''[[helix]]'''. '''Spiral staircases''' are also in fact '''[[Helix\|helixes]]''' and not really spirals at all (!) but 3D spirals do exist, examples of which include the springs commonly used as a battery contact in torches and some [https://en.wikipedia.org/wiki/Bithynia_tentaculata snail shells] .		A [https://en.wikipedia.org/wiki/Gramophone_record '''vynil record'''] groove is a good example of a spiral ''(but the early, antique [https://en.wikipedia.org/wiki/Phonograph '''phonograph'''] cylinders follow a '''[[helix]]'''. '''Spiral staircases''' are also in fact '''[[Helix\|helixes]]''' and not really spirals at all (!) but 3D spirals do exist, examples of which include the springs commonly used as a battery contact in torches and some [https://en.wikipedia.org/wiki/Bithynia_tentaculata snail shells] .


			=====Constructions=====

	{\| cellpadding="5"		{\| cellpadding="5"
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	\| [[File:GoldenSpiralConstruction.png\|350px\|right]]		\| [[File:GoldenSpiralConstruction.png\|350px\|right]]
	\|}		\|}

			{{Drawing Instruments Buyers Guide}}


	[[Category:Primary]]		[[Category:Primary]]
	[[Category:Secondary]]		[[Category:Secondary]]
	[[Category:Geometry]]		[[Category:Geometry]]

DT Online at 12:32, 5 April 2015

2015-04-05T12:32:13Z

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	* Draw a rectangle where one side is the side of the square and the shorter side has a length proportional to the number below it on the Fibonacci series ''(say, 3)''.		* Draw a rectangle where one side is the side of the square and the shorter side has a length proportional to the number below it on the Fibonacci series ''(say, 3)''.
	* Draw a large square from the side of the first square plus the shorter side of the rectangle ''(length now, say, 8)'' and repeat the process.		* Draw a large square from the side of the first square plus the shorter side of the rectangle ''(length now, say, 8)'' and repeat the process.
	* An approximate spiral can be created by drawing quarter circles, or quadrants, in each of the ~~square~~ as shown.		* An approximate spiral can be created by drawing quarter circles, or quadrants, in each of the squares as shown.
	\| [[File:GoldenSpiralConstruction.png\|350px\|right]]		\| [[File:GoldenSpiralConstruction.png\|350px\|right]]
	\|}		\|}

DT Online: Changed Images

2015-02-21T17:14:27Z

Changed Images

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	</span>		</span>
	\| [[File:~~CommonSpiral~~.~~jpg~~\|200px\|right]]		\| [[File:CommonSpiralConstruction.png\|200px\|right]]
	\|-		\|-
	\| '''Constructing an Archimedean Spiral'''		\| '''Constructing an Archimedean Spiral'''
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	* The intersection between the circle from point 1 on the line and radial line 1 provide point 1 on the spiral.		* The intersection between the circle from point 1 on the line and radial line 1 provide point 1 on the spiral.
	* Plot all other points in this way and draw a smooth curve through them ''(or use [https://en.wikipedia.org/wiki/French_curve '''French Curves'''] or a [https://en.wikipedia.org/wiki/Flat_spline '''flexible strip'''] for example)''</span>		* Plot all other points in this way and draw a smooth curve through them ''(or use [https://en.wikipedia.org/wiki/French_curve '''French Curves'''] or a [https://en.wikipedia.org/wiki/Flat_spline '''flexible strip'''] for example)''</span>
	\| [[File:~~ArchimedianSpiralConstruction~~.~~jpg~~\|250px\|right]]		\| [[File:ArchimedeanSpiralConstruction.png\|250px\|right]]
	\|-		\|-
	\| '''Constructing Spiral using Golden Rectangles'''		\| '''Constructing Spiral using Golden Rectangles'''
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	* Draw a large square from the side of the first square plus the shorter side of the rectangle ''(length now, say, 8)'' and repeat the process.		* Draw a large square from the side of the first square plus the shorter side of the rectangle ''(length now, say, 8)'' and repeat the process.
	* An approximate spiral can be created by drawing quarter circles, or quadrants, in each of the square as shown.		* An approximate spiral can be created by drawing quarter circles, or quadrants, in each of the square as shown.
	\| [[File:~~GoldenRectangleSpiral~~.~~jpg~~\|350px\|right]]		\| [[File:GoldenSpiralConstruction.png\|350px\|right]]
	\|}		\|}

DT Online: Added category links

2015-02-19T12:56:23Z

Added category links

← Older revision		Revision as of 12:56, 19 February 2015
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	An [https://en.wikipedia.org/wiki/Spiral '''Spiral'''] is a line traced by a point which starts at a centre which it gets progressively further away from as it travels around it.		An [https://en.wikipedia.org/wiki/Spiral '''Spiral'''] is a line traced by a point which starts at a centre which it gets progressively further away from as it travels around it. There are many different ways of drawing spirals each with different mathematical properties.


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	\| [[File:GoldenRectangleSpiral.jpg\|350px\|right]]		\| [[File:GoldenRectangleSpiral.jpg\|350px\|right]]
	\|}		\|}

			[[Category:Primary]]
			[[Category:Secondary]]
			[[Category:Geometry]]

DT Online at 11:31, 19 February 2015

2015-02-19T11:31:33Z

← Older revision		Revision as of 11:31, 19 February 2015
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	* Start by drawing a square of any size ''(but for ease, make its length of side divisable by a number on the Fibonacci series - say,5)''		* Start by drawing a square of any size ''(but for ease, make its length of side divisable by a number on the Fibonacci series - say,5)''
	* Draw a rectangle where one side is the side of the square and the shorter side has a length proportional to the number below it on the Fibonacci series ''(say, 3)''.		* Draw a rectangle where one side is the side of the square and the shorter side has a length proportional to the number below it on the Fibonacci series ''(say, 3)''.
	* Draw a large square from the side of the first square plus the shorter side of the rectangle ''(length now, say, 8) and repeat the process.		* Draw a large square from the side of the first square plus the shorter side of the rectangle ''(length now, say, 8)'' and repeat the process.
	* An approximate spiral can be created by drawing quarter circles, or quadrants, in each of the square as shown.		* An approximate spiral can be created by drawing quarter circles, or quadrants, in each of the square as shown.
	\| [[File:GoldenRectangleSpiral.jpg\|350px\|right]]		\| [[File:GoldenRectangleSpiral.jpg\|350px\|right]]
	\|}		\|}