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Radiation is all around us and is passing through us all the time, but it is usually invisible.
A cloud chamber has an atmosphere supersaturated with alcohol, and when radiation passes through, it causes the alcohol to condense so you can see where the radiation passed through.
The first 50 seconds of this video show the NORMAL BACKGROUND RADIATION that is always there and has been irradiating you since you were an egg and a sperm.
http://www.youtube.com/watch?v=Efgy1bV2aQo
When there is a normal level of radiation, cells have multiple repair mechanisms to fix almost all the damage.
Your local science museum may have a cloud chamber like this. It is worth seeing in person. My friends were just astonished when they saw it for the first time.
A cloud chamber has an atmosphere supersaturated with alcohol, and when radiation passes through, it causes the alcohol to condense so you can see where the radiation passed through.
The first 50 seconds of this video show the NORMAL BACKGROUND RADIATION that is always there and has been irradiating you since you were an egg and a sperm.
http://www.youtube.com/watch?v=Efgy1bV2aQo
When there is a normal level of radiation, cells have multiple repair mechanisms to fix almost all the damage.
Your local science museum may have a cloud chamber like this. It is worth seeing in person. My friends were just astonished when they saw it for the first time.