Great article here: http://www.bbc.com/future/story/20130604-why-we-turn-devices-off-on-planes http://www.bbc.com/future/story/20130604-why-we-turn-devices...

Great article here: http://www.bbc.com/future/story/20130604-why-we-turn-devices-off-on-planes http://www.bbc.com/future/story/20130604-why-we-turn-devices... Also good: https://en.wikipedia.org/wiki/Mobile_phones_on_aircraft https://en.wikipedia.org/wiki/Mobile_phones_on_aircraft