I am a retired Physics teacher who believed that cell phone use was for outside the classroom. The first person who texted in my class was asked to stay after class so I could write him a pass to his counselor. That way he could drop my class. After the tears subsided, I explained to him how my class works. Didn't text again until the last week of class.
If the student's phone rang during a class, it would be like any other disturbance and I asked them to step out into the hall. I then gave a quick oral quiz. Like "Name the ship that hit an iceberg in the early 1900's" If the student in the hall complained that they were not given the opportunity to take the quiz, I gave them the makeup. "The Titanic hit an iceberg in the early 1900's. Write a list naming all the people who died due to that collision."
Some people sleep with the cell phone under their pillow. Not too bad if the tower is close but if it is not, the electromagnetic energy of that phone might be causing brain damage. Easy enough to check, if the battery drains quite a bit during the sleeping hours that energy has to go somewhere.
Considering the higher frequencies used by the cell phone industry it might be a problem.
Or take a look at the link and see other problems.
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Today's Featured Article - Two-Brush Generators - by Chris Pratt. Whether for product liability or because the aftermarket parts and labor business is lucrative, this concept is disturbingly prevalent. Fortunately when you step into your shop and make that jump 50 years back in time to work with your old tractor, this concept goes out the window. Even so, when it comes to the charging system, people quickly revert to this idea and start replacing the major components one at a time until it works. The reason you don't find any decals in your replacement set wit
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