eli5 Why can’t black boxes in Aeroplanes update data to a cloud throughout a flight or after a crash has occured? why do we need to find the physical box?
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Water is one of the biggest reasons, it is ludicrously hard to transmit data wirelessly through water. To get radio to penetrate anything near useful the bit rate is like 6 bits a second, a single letter is 8bits to give you an idea how slow that is.
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