"There are several ways we could handle that--by modulating
a column of air, for instance, or by some sort of speaker diaphragm. The
real stumper will be how to teach him our spoken language."
Mr. Swift nodded. "I'm afraid you're right. If the inhabitants of Planet
X communicate telepathically, or by some sort of wave transfer, they may
have long since forgotten any concept of a spoken language."
The Swifts batted several ideas back and forth. Then Tom snapped his
fingers.
"Wait, Dad! We have the answer! The electronic brain!"
Mr. Swift's eyes lighted up. "Of course! The machine already translates
the space code into written English. All we need do is add a device to
convert the machine's impulses into sound!"
In two hours the Swifts had put together a mechanism designed to work
through a tape recorder. This was hooked up to the electronic brain.
After recording for several moments, Tom reversed the tape and switched
on the playback. A squeaky jumble of noises could be heard. But one word
seemed to come through fairly distinctly. "Universe!"
"It's talking!" Tom cried out.
"Trying to, but not succeeding very well," Mr. Swift said.
Nevertheless, the two scientists were jubilant at this first
breakthrough. Eagerly they began making adjustments--both on the
electronic-brain hookup and the converter mechanism. Tom was just about
to switch on the tape recorder again when the telephone rang.
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