Microwaves by Andre Frantz

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Microwaves

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BY: ANDRE CONNOR HUNTER

Microwaves cause water and fat molecules to vibrate, which makes the substance hot.
We can use microwaves to cook many types of food.
Mobile phones use microwaves, as they can be generated by a small antenna.
Wifi also uses microwaves.

Prolonged exposure to significant levels of microwaves is known to cause "cataracts" in your eyes, which is a clouding of the lens preventing you from seeing clearly
People who work on aircraft carrier decks wear special suits which reflect microwaves, to avoid being "cooked" by the powerful radar units in modern military planes.
Some research in the past has indicated that the small doses of microwaves from mobile phones might affect parts of your brain

Microwaves are a form of electromagnetic radiation with wavelengths ranging from one meter to one millimeter; with frequencies between 300 MHz (100 cm) and 300 GHz (0.1 cm
Microwaves have longer wavelengths with low energy and freq while gamma have shorter wavelength and higher energy and freq

Microwaves are almost always present on the Earth's surface. Scientists have discovered that there is a low-level of microwaves present under normal conditions, possibly because microwaves can easily enter the Earth's atmosphere.
The origin of the microwave started with James Maxwell Clark in 1864. In this year Clark developed a theory that light and a magnetic field could be combined and travel at the speed of light.

The Chalmers team expects to be able to test two different techniques on patients within the next six months. One method is an alternative to mammography, i.e. using X-rays to detect breast cancer. The other aims to treat tumours in the head and neck by heating the cancer cells.

"We obtain three-dimensional images showing significantly better contrast between healthy and malignant tissue compared to X-rays. That makes it easier to detect even really small tumours that may currently be obscured by healthy tissue, thus creating the preconditions for much more reliable diagnosis."

Microwaves can be used to create medical images -- a new technique known as microwave tomography. Andreas Fhager, Associate Professor of Biomedical Electromagnetics, has developed a system to detect breast cancer with the new technique. He points out that the method has several advantages over mammography.