PRESENTATION OUTLINE
MICROWAVE EMR PRESENTATION
OUR RESEARCH QUESTION: HOW DO MICROWAVES OPERATE?
How the wave is created:
Microwaves are produced by an electric field exciting an electron causing the emission if a wave at magnetic and electric fields.
Possible dangers of this wave can include the fact that if it were to leak, eyes could be exposed to radiation and can be extremely harmful. Microwaved foods lose nutrition by atoms being ripped apart therefore people not getting all the needed nutrients in the food they consume.
The wavelength of Microwave EMR is about 1mm to 1m. This is comparative in size to about the size of a table top.
The frequency of a Microwave EMR is 300GHZ to 300mHZ.
Applications of microwaves in society include microwaves being used for cooking, weather mapping, radar and satellite communications, as well as cellular phones, over-the-air television signals, GPS navigation and long-range telescopes. The longest frequencies are used in telescopes, while the shortest frequencies are used in GPS and cellular phones.
Microwave used in weather forecasting
An interesting fact about this wave is in 1946, an engineer with Raytheon named Dr. Percy Spencer accidentally discovered that certain radar waves would heat foods. After further investigating he found that the radar magnetrons he was working with would heat anything with water. In 1954, the Amana company (founded by Raytheon) developed the first commercial microwave cooking oven.
CITATIONS/SOURCES OF RESEARCH
