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QWho invented/discovered Loud speaker?

ID: #11760 Inventions in Physics 194 views
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#11760Q ID
ModerateDifficulty
Inventions in PhysicsTopic
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  • A Horace Shorttling ✔ ✖
  • B Otto Hahn ✔ ✖
  • C Kirkpatrick MacMilan ✔ ✖
  • D U. S. scientists ✔ ✖
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Loud speaker invented/discovered by Horace Shorttling in the year 1900 [Country: U.S.A.]
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