Ever wonder how your finger can magically control your smartphone screen? We explain in this episode of SciShow.
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I have nerve issues in my extremities. After having a nerve conduction study done on my muscles i learned that my muscles dont produce much electricity. Is this why sometimes my numb fingertips don’t seem to make the connection i am trying to make on a touchscreen?
People love saying humans are stupid, but I'm often baffled by how clever human inventions have become. Figuring out electricity started a massive revolution, but from simple circuits of DC power, to AC power, to cathodes and diodes, onward to transistors and microchips it's incredible. And that's only the beginning 0.0....If you have taken the time to learn about how transistors work, I encourage it. It's impossibly clever and without them cell phones wouldn't exist.
Who on Earth sweats like THAT!? (see 2:53)... *remembers Airplane!* nevermind...
BTW, My fingertip hurts already for so many tapping and slidding on my smartphone, well, more like they got very sensitive despite I always tap softly. I know you said at 2:28 that the electricity doesn't flow through the finger, but my fingers tell a really different story after 2 years of constantly using my smarthphone...
Hi, could you explain how floating touch screens work, the touch screens seen on Sony smartphones where a user can use the screen from any glove or can even interact the screen without touching it but hovering the finger over it???
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