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zakruti.com » Knowledge, science, education » TED-Ed
Why a sausage can do what your gloves cannot - Charles Wallace and Sajan Saini

Why a sausage can do what your gloves cannot - Charles Wallace and Sajan Saini

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Rating: 4.3; Vote: 3
Dig into the science of touchscreens, and find out the difference between the two most common types: capacitive and resistive. In 2010, South Korea experienced a particularly cold winter. People couldn t activate their smartphones while wearing gloves, so they began wielding snack sausages causing one company to see a 40% rise in sausage sales. So, what could sausages do that gloves couldn t? In other words, how do touchscreens actually work? Charles Wallace and Sajan Saini dig into the science of touchscreens.
Date: 2022-07-28

Comments and reviews: 13


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Nice I rly love the animations in this video. And great work getting so much information over in such short time, I was wondering for a while how touchscreens actually work since we didnt learn it explicitly in physic. just noice
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I've really wondered that too, especially since I tried to make a stylus at home and found it wouldn't function without a conducting material. Brilliant video, and thank you so much for such interesting content!
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I think the first touchscreen technology i have encountered was the Nintendo Ds. And I have to ask though. How does it work then? Bc I don't think i could have used my ds with a sausage.
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But, traditional diner stalls in Indonesia already use touchscreens for decades, just touch the screen to whatever you want to eat and your meal will be serve in no time.
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There are also special gloves with special material on the fingertips to allow using touchscreens. Perhaps a sequel video explaining that function is called for.
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I thought this video was going to be about SawStop. It's the same principle though: sausages and fingers produce current so they stop the saw, whereas plastic won't.
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omg i've always been questioning about all these technology things. i don't take it for granted. it feels very mind-blowing every time i think about it. like, HOW?
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What about tempered glass protector? does that create another circuit ontop of the protector or is it electrical proximity that allows the input to function.
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So this touch screen technology is pretty old compared with the chips advancement, Touch Free Screen should be the top of the list research for them.
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Can't believe it's been 15 years since Steve Jobs introduced what most of us would use everyday and the many companies that produce it.
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When i first used resistive screen phones in early 2000s, i hated the experience and thought that touch screens would never be a thing.
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