Why my phones touchscreen sometimes registers a touch when in reality my finger is millemeter or two from screen? | AskScience Blog

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Friday, November 9, 2018

Why my phones touchscreen sometimes registers a touch when in reality my finger is millemeter or two from screen?

Why my phones touchscreen sometimes registers a touch when in reality my finger is millemeter or two from screen?


Why my phones touchscreen sometimes registers a touch when in reality my finger is millemeter or two from screen?

Posted: 08 Nov 2018 11:57 PM PST

My guess is static electricity since it only happens once in a while and randomly but i am hoping for more insightful explanation.

Edit: It also usually happens in the middle of typing. It never happened, for me, on first letters I typed. And, I am sure my finger did not touch the screen in a way i just did not feel it. When it happened i was surely away from screen, that is why it always jumps out when it happens. It is always unexpected.

Edit2: I can surely replicate phone registering very soft touches (without me feeling actually touching it) but those random ones I am experiencing are different, the finger is always a lot further away than when i can register a touch without feeling it by testing. A lot may be very relative term but that is how it feels to me, i am not really sure how far the finger actually is because it usually happens really fast and its hard to measure so small distances with feelings. So, there is a small chance that i am imagining it.

Edit3: I am using Redmi 5A if that makes any difference.

Edit4: I searched my phone but did not find any settings that increase screen sensitivity or glove mode or anything like that. It is an android 1.7.2.

submitted by /u/Dreamer_tm
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[Earth Sciences] Is there a current example of a mountain range that is just starting?

Posted: 08 Nov 2018 04:07 PM PST

I have heard that the Himalayas are young and still growing. And that the Rockies are young and large, while the Appalachians are old and being worn down. Is there a good example of a small mountain range (hills?) in the world that is in the early stages of its development, it has the potential to grow into a full-scale mountain range?

submitted by /u/MDCCCLXV
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Does Hale Bopp belong to the solar system? Or does its trajectory just go through the solar system from time to time?

Posted: 09 Nov 2018 05:25 AM PST

Augmented reality 7D holograms - how does it make it look like the light stops mid-air?

Posted: 09 Nov 2018 02:57 AM PST

After discovering this video: https://youtu.be/rD1_C_RAJeE?t=177 I immediately wondered how did they manage to do it? How can the light carrying information about the reference object just stop mid-air? I know it can´t but that´s how it looks like (no pollen, no small particles, no visible gas etc.) and no method of projecting light to create a 3rd object in space seems to apply.
Any explanation? I have found out that RIOT (company behind the ceremony from the video) got this marvel from this company https://www.zerodensity.tv/products/reality/

I have tried to google this question and came up with little to nothing - this question https://www.reddit.com/r/askscience/comments/8fjbl9/how_exactly_do_holograms_work_how_does_the_light/ seems related, but I couldn´t find a satisfying explanation.

Thank you for your responds!

submitted by /u/Teiresias13
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Is there any "up" direction to the universe? Every map of earth is drawn "right side up", but how do we know that? what measure has everyone been using?

Posted: 08 Nov 2018 06:43 PM PST

is there any sort of marker of "up" and "down" in the universe? if so, what?

submitted by /u/OneEyedCharlie
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Say you know the dirrection the Milky Way is headed and you launch a rocket going towards the dirrection the Galaxy was coming from, from our prospective, would it appear to be going faster than a rocket launched in the same dirrection our galexy is headed to?

Posted: 08 Nov 2018 09:06 PM PST

Sorry if my grammar made this hard to read.

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At one point in time was the universe background radiation the same wavelength as the radiation we use in microwave ovens?

Posted: 08 Nov 2018 05:34 PM PST

I was thinking about what a cataclysmic event this would be in terms of liquid water forming in the universe and any effect it would have on life if it existed at the time. This question I've been meaning to ask for a long time...

submitted by /u/Kavster92
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Bio-Savart law states: A moving point charge creates magnetic field. What is the motion of the charge relative to?

Posted: 08 Nov 2018 03:38 PM PST

Is it relative to the observer, earth's surface or something else?

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How do you store plasma?

Posted: 08 Nov 2018 05:44 PM PST

I know it can be generated in various ways but can it be stored for any meaningful length of time?

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How do people with amnesia remember how to speak?

Posted: 08 Nov 2018 08:55 AM PST

Is the generation of a planetary magnetic field reliant upon the presence of a solid inner core?

Posted: 08 Nov 2018 03:09 PM PST

Are femtosecond lasers synonym to ultrafast lasers?

Posted: 08 Nov 2018 10:46 AM PST

As in the title above, are those synonyms or ultrafast lasers is broader term that contain femtosecond lasers?

submitted by /u/uncross97
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