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Title:How do pregnancy tests work? - Tien Nguyen
Duration:04:34
Viewed:9,082,651
Published:07-07-2015
Source:Youtube

Dig into the science of how modern over-the-counter pregnancy tests detect pregnancy with such a high rate of accuracy. -- Over-the-counter pregnancy tests give potentially life-changing results with a pretty high rate of accuracy. But how do they work? Tien Nguyen explains how each test performs a scientifically rigorous, multi-stage experiment that goes from start to finish in the time that it’ll take you to watch this video. Lesson by Tien Nguyen, animation by Andrew Foerster. View full lesson: ed.ted.com/lessons/how-do-pregnancy-tests-work-tie…

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