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Radiation from cell phonesFeatured science projectScience project video

Observation

It is observed that the temperature of the water in the test tubes did not increase after the cell phone from the 3 manufacturers was left ringing for 2 minutes.
 

Condition Effect of cell phone radiation on water temperature (degrees Celcius)
  Ericsson Nokia Motorola
Before ringing 24.5 24.5 24.5
After ringing 24.5 24.5 24.5
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Complexity level:
7
Project cost ($):
30
Time required:
1 hour to prepare, 1 hour for observation
Material availability:
Easily found
Safety concerns:

Basic safety requirements