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Speak to Me

Speak to Me

1,394 번 감상됨

로봇이 아님을 인증

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투표해 주셔서 감사합니다. 귀하의 투표가 저장되었으며 잠시 후 표시됩니다.
아니오
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What's that? You can't hear me? Maybe you need some new speakers! Don't have the cash to buy them? Well, Mr. O in the most recent O Wow Moment from the Children's Museum of Houston, will explain the science behind speakers and show you how to make speakers!

추가됨: 05 Feb 2017
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