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Thursday, August 27, 2015

Wave Magic

Waves or vibrations are an integral part of the universe.

De Broglie showed that matter not only has a particle like nature it also has a wave like nature, only that the wave like nature of matter is not observable to the human eye. The main reason for this is that human eye cannot detect microscopic or subatomic particles. In case of of larger objects the wave lengths is so long that the wave like nature is not apparent.

What are waves. Waves are but regular disturbances in a medium. Sound waves are disturbances in air, while visible light is disturbances in electromagnetic field. The particle of light is known as photon. The energy of a photon is directly proportion to its frequency. Plants absorb this photons from sunlight during the process of photosynthesis. They manufacture their own food by absorbing this photon.

Music is rhythmic sound that tends to have some effect on the mind. Now why does this effect happen? Why do we like certain forms of music or sound like the song of a cuckoo but don't like the unrythmic sound made by a crow. Certain people have the ability generate soul stirring music, how do they have this ability? and why we are so much attracted towards their music? 

We don't realize how much we are surrounded by such waves. The AC electricity that we receive, when its magnitude and direction are plotted in a graph, it would generate a wavelike profile. Our heart that pumps blood to all the parts of the body beats rhythmically. 

The phenomenon of resonance has a very vital importance in tuning musical instruments to the right frequency. This phenomenon is very important and its knowledge is also very important to engineers and scientists. Take the example of Tacoma Bridge disaster , the entire bridge was destroyed because of the phenomenon of resonance, when the natural frequency of the bridge was matched by the frequency produced due to 40 mph winds.

Nicola Tesla once said " If you want to understand the universe, think in terms of energy, frequency and vibration". Tesla is one of the greatest scientist of all times and this shows that the study of waves i.e. frequency, vibration, wavelength, resonance etc is very vital. 

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