Name: What is Air Lock? — endeavor
Uploaded: 2020-02-11
Duration: 9 min 45 s
Description: Drawing a straight line between points A and B is easy, but digging a trench this deep to install the pipe, or worse, tunneling it, is not an inexpensive endeavor.

Spoken in 3 clips from 2 channels · B2–C1 · other forms: endeavored, endeavors

01 / 3TED-EdC11:57–2:06

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02 / 3Practical EngineeringB20:00–0:03

03 / 3Practical EngineeringC16:42–6:52

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3 clips · 2 channels

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simple