Page "hobbies" Paragraph 737
from
Brown Corpus
Radio-transmitter pills
Several years ago headlines were made by a small radio transmitter capsule which could be swallowed by the patient and which would then radio internal pressure data to external receivers.
This original capsule contained a battery and a transistor oscillator and was about 1 cm. in diameter.
Battery life limited the use of this `` pill '' to about 8 to 30 hours maximum.
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2.005 seconds.