Wednesday, July 6, 2011

Microooooowave - The Nah Theory

Microwaves

Uses
Heating up and cooking food
Radar (Military purposes)

Harmful effects/ disadvantages
Clicks and buzzing sounds (Thermal expansion in parts of the inner ear)
Dielectric heating induced in bodies

12 comments:

  1. no background description and examples. Please explain the basics.

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  2. Could be elaborated further, however, key points have been noted (Y)

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  3. The advantages and disadvantages of the microwave should be more informative and include how they incorporate microwave

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  4. Could have elaborated more on key points for a better understanding.

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  5. U should elaborate on the uses of the microwave like how it works

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  6. Only uses, applications and disadvantages are mentioned, the basic key feature of a microwave is not mentioned...

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  7. Should have elaborated on the description of the waves

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  8. General description of Microwaves,

    They are a specific wavelength in the Electromagnetic spectrum, which therefore travels at 3*10^8m/s.

    Electromagnetic waves
    A wave that is capable of transmitting its energy through a vacuum
    Produced by the vibration of charged particles
    All light waves are examples of electromagnetic waves
    A transverse wave that has both an electric and a magnetic component.
    The magnitude of speed of electromagnetic waves in vacuum is 3 * 10^8 m/s
    Are formed from an electric and magnetic field
    The magnetic and electric fields of an electromagnetic wave are perpendicular to each other and to the direction of the wave


    Is a electromagnetic radiation and produced by vibrating electric charges.

    Wavelike behaviors of light
    Reflects in the same manner any wave would
    Involves a change in direction of waves when they bounce off a barrier
    Refracts in the same manner any wave would
    Involves a change in direction of waves as they pass from one medium to another
    Diffracts in the same manner any wave would
    Involves a change in direction of waves as they pass through an opening or around an obstacle in their path
    Undergoes interference in the same manner any wave would
    Constructive interference
    2 interfering waves have a displacement in the same direction.
    Destructive interference
    2 interfering waves have a displacement in the opposite direction.
    Two point source interference
    Thin film interference
    Exhibits the Doppler effect any wave would
    Behaves in way consistent to conceptual and mathematical understanding of waves.

    >:D

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  9. Definition not clearly stated, could give more uses and disadvantages.

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  10. General description of Dielectric heating.

    It is also known as electronic heating, RF heating, high-frequency heating.

    Is the process in which radio wave or microwave electromagnetic radiation heats a dielectric material.

    Basically it is just heating up :D Like microwave

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