Takeoff and Landing
One of the arguments for paper books is that airlines prohibit the use of electronic devices until the aircraft has reached cruising altitude. But are the technical reasons cited by authorities grounded (sorry!) in fact? The NY Times has a look here:
The F.A.A. does allow some electronics during takeoff and landing. Portable voice recorders, hearing aids, heart pacemakers and electric shavers are permitted during all times of a flight.
So I took a Sony voice recorder that I bought at Best Buy and tested that too. The results? The voice recorder puts off almost exactly the same electrical emissions as the Kindle. In many instances of the test, the voice recorder actually emitted more.
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