How do pregnancy tests work? - Tien Nguyen
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View full lesson: http://ed.ted.com/lessons/how-do-pregnancy-tests-work-tien-nguyen 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.
Kommentare
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OMFG DID THE BARLEY JUST ASSUMED MY BABYS GENDER?
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Ain't nobody got time or money for pregnancy tests. Life hack: wait 9 months, if you have a baby, congrats! You were pregnant!
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Assay is pronounced ah-say, not ae-say. You lose credibility with viewership when you make mistakes like this.
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:P this just got awkered
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really impressed with the ancient Egyptians
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Note to Self:
Don't trust 2 a.m. searches -
thanks for the indonesia sub !
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God I've never felt so proud to know our Egyptian history was that smart :D
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Awww the poor cute HCB XD
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I thought that at the beginning of the video she said "The earliest known pregnancy"
and im like "wait HOW DID WE REPRODUCE BEFORE- oh its pregnancy TEST, ah ok I'm dumb" -
I really enjoyed the animation on this one
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Ok.......
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Bbbbbb
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I always thought that they shove those sticks up their vagina, but now I know it only examine urine
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0:57 "Honey pass me the gun"
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If I had teste cancer, I'll just pull a randy marsh, i.e. Smoke a lot of medicinal marijuana
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I like how the HCG runs away XD
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Why am I watching this?
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Did anyone see the bottle labeled hippo monkey urine