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In the diagram above, the waves can be seen to bend towards the normal. The normal is shown as a dotted line. The dashed line is the direction that the waves would travel if they had not met the angled piece of glass. In practice, showing refraction with a ripple tank is quite tricky to do.
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Date/Time Thumbnail Dimensions User Comment; current: 14:07, 22 February 2011: 1,770 × 1,752 (93 KB): Cryonic07: Fixed the font and added motor fastenings. 15:28, 30 August 2007
The typical wave tank is a box filled with liquid, usually water, leaving open or air-filled space on top. At one end of the tank, an actuator generates waves; the other end usually has a wave-absorbing surface. [1] A similar device is the ripple tank, which is flat and shallow and used for observing patterns of surface waves from above.
Thomas Young's sketch of two-slit diffraction for water ripple tank from his 1807 Lectures [6]: 139 . The effects of diffraction of light were first carefully observed and characterized by Francesco Maria Grimaldi, who also coined the term diffraction, from the Latin diffringere, 'to break into pieces', referring to light breaking up into different directions. [7]
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It’s better not to use annotation to give a diagram a title. Put the diagram inside a table and use the table caption to do it. That way it can easily be changed. Do not be tempted to use the WordArt button next to the text button. WordArt is the feature most responsible for those terrible looking amateur posters, and ads that can be seen in ...