In quantum physics, what exactly constitutes and observer?

Subject: In quantum physics, what exactly constitutes and observer?

Date: Mon Apr 3 12:31:25 2000
Posted by John
Grade level: 7-9 School: State College
City: State College State/Province: PA Country: USA
Area of science: Physics
ID: 954783085.Ph

Message:


I am unclear about the exact definition of an observer.  Could a mouse be an 
observer? A bacterium? A computer? Another particle which could interact 
with the particle in question?

Re: In quantum physics, what exactly constitutes and observer?

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