Newton's disc - colors adding

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Decomposition of light by a prism described in detail in his book Optica Isaac Newton, which was published in 1686. At the same time, however, showed that each monochromatic light can also take back the white light. It can be proved using the so-called Newton's wheel.

Educational phase: motivation, exposition

 

Required aids+

  • newton disk
  • drill

 

Experiment schema+

Experiment schema:

Decomposition of light by a prism described in detail in his book Optica Isaac Newton, which was published in 1686. At the same time, however, showed that each monochromatic light can also take back the white light. It can be proved using the so-called Newton's wheel.
 

Experiment instructions+

E110_S001 Clamp the blade in drills, engine, or just hold in your hand.
E110_S002 Observe the motion and color mixing.
 

Explanation+

The surface of the disc is divided into six slices, which are colored color spectrum. If illuminated by daylight disc spinning at more than 100 revolutions per second, all the colors blend and surface of the disc is gray.
 

Experiment video+

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Physical interpretation+

Attempt to prove that the color of light sources of different color or illuminated objects is the result of the general perception monofrekvenčních lights of different colors. It either emits a light source, or are contained in light reflected from a surface. The resulting color sensation is then referred to the corresponding color name, we describe the tone color.

Decomposition of light by a prism described in detail in his book Optica Isaac Newton, which was published in 1686. At the same time, however, showed that each monochromatic light can also take back the white light. It can be proved using the so-called Newton's wheel.
 

Application in practice+

The principle of additive color mixing is applied such as computer monitors and TV screens = RGB model.
 
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This experiment has been added 14.4.2012 by Jan Krejčí and since then have 11562 visits.
 
3.6.2014 21:44 © Krejčí Jan
 
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