***** What about doing a quick answers video or series where you gather a bunch of questions, or even just frequently asked questions, and you do a short answer for multiple questions in one video. For example, ill answer the first 2 questions in the video 1. Why do we get nervous? It is an evolutionary trait to get nervous when we are facing potentially dangerous situations to keep us on our toes so we can quickly fight or flight if needed. 2. Whats the worst that could happen by cracking your knuckles? Nothing. There is no known correlation between knuckle cracking and joint injury or arthritis. Im genuinely curious about #3 though.
not that this channel isn't good because i enjoy it, but most of the questions asked at the beginning are answered by Michael Stevens on VSauce, another great channel
My LG F3 has a capacitive touch screen. The glass on the front is wonderful, I have not gotten a single scratch on it since I got the phone, and its been through a lot. All of my other devices with screens have managed to catch a few scratches in the past, but not this phone.
Why do we get nervous? Because getting nervous has evolutionary utility. We get nervous when we have to do something we dislike doing. There's a reason we don't like doing everything. Either it brings us pain and therefore can damage us physically, or it brings us shame/humiliation/embarrassment which all damage our reputation. Assuming everything else is equal the person with the better reputation and who experiences few things which cause pain has better survival/reproductive prospects than those who have poor reputation and who experience lots of things which cause pain. This dawned on your body overtime so at some point it started doing whatever it does to make you feel uneasy about being in situations which may lead to humiliation/pain so that you avoid them. Of course sometimes it is best to deal with the nervousness and not run away, but nervousness does, for the most part, protect you from doing things that really aren't beneficial - like trying to satisfy your curiosity with regards to how it feels to shoot yourself with a gun, or the curiosity with regards to seeing how others react if you get up and run around in a circle screaming on a bus.
3:07 In a capacitive touch screen no charge actually moves between the phone and your finger (i.e. there is no current going into or out of your body). The charge in the phone simply induces an opposite charge in your finger, and your finger and the driving lines become a capacitor. Good info tho, just wanted to clarify that part.
it was an interesting lecture about touch screens, simply explained and straight forward. I wonder if you can make an explanation about wifi frequency, how does it hold and transfer data, and how does the receptors on the terminals receive that data .. thanx in advance
Could you guys make a video about the first touch screen at CERN and the making of it? Never heard about it before. Love your show, would like to se more of Captain Slow.
JoyOfMachine Of course it is. Your internal temperature is never the same as your external temperature and 25-27C is hotter than most external temperatures in the UK, granted of course you don't wear clothes while swimming, but 25-27C is hot! I imagine they would sweat, they're doing intense exercise, they're internal temp would rise. Do you think sprinters would sweat in 35C temperature while naked? It's the same question (assuming our clothes increase our surface temperature by ~7C, I have no idea how influential they actually are and obviously it depends on the type of clothes).
yes if the water is warm enough that their body (nervous system in particular) feels the need to cool itself. the water really wouldn't have to be very warm, people sweat walking through antarctica.
Here's a good one for you I'm sure my fellow viewers would enjoy regarding touch screen technology. Quantum tunneling touch screens. I've looked into this before but would love to see your take on it. We're all nerds here right? If it has the word quantum in it then it must be discussed!
I've heard that there is another type of touchscreen which is based on something like an optic field and when you place your finger on it you disrupt it and camera like sensors can tell the position of the disruption.
I am still a bit confuse. First is for the capacitive touch screen. It uses 3 layers that the LCD and Protecting Glass are separated by Capacitive Layer. How could the LCD is still visible while it is covered by the Capacitive Layer? Second is for the resistive touch screen. Where do you put the LCD? if it is also separated with the top layer by the middle layer, how could the LCD is still visible, too? By the way, thank you for upgrading my knowledge :)
How do the touch screens work INSIDE shop windows that you can use and operate from outside? You're not actually touching the screen, just the glass of the shop window. Also: When I was at school (30 years ago!) there was a touch screen that used a frame around the screen to detect where your finger was placed. I think it used IR diodes to map where the beam was broken.
The shop window displays are generally very similar to the capacitive touch in phones. The main difference is the layer of glass between your finger and the measuring lines is much thicker so the screen just needs to be calibrated to the peak capacitance level when a finger is placed on the thicker glass.
***** yeah. Every notice in those old light gun games when you pulled the trigger the screen would flash? It wasn't for effect the gun would take a black and white picture at the same time and figure where the center of the white square is to determine your shot
*WRONG!* Capacitive touchscreen was introduced by LG with model Prada, released a full year before the iphone. So once again, just replicating, not innovating.
Well, at the end...technically, CERN introduced capacitive touchscreen.... but I'm not all too surprised Apple would take the credit whoever actually did make it
the LG prada had a crappy touchscreen that failed to respond earlier than 2 hours after you touched a screen. Apple didnt claim they invented it. They claimed that they invented the first good, reliable touchscreen phone on the market which they did.
*NOT WRONG.* He said the iPhone led to capacitive touch screens being widely adopted in the smartphone market, not that Apple invented them or were the first to use them.
hi can you do a video on the how the whole thing work ,ie from the moment you touch the screen, to the moment you see the response on the screen due to the touch...and compare the processing time with the our sense of time(if we were the phone, what we have to do and how much time we consume doing so).......
Here is a really good question. I know the figures will likely not be correct but this is an example. Say someone were to try and shoot someone on a train which is travelling at 500mph, but the bullet only travelled at 400mph... does this mean the bullet would come out the barrel but then because it is travelling -100mph to the train's speed it would then mean it would travel backwards at 100mph and therefore end up penetrating the person who fired the bullet and not the person who was being shot at ? or would the bullet just simply not come out the barrel? or would it reach the person the same time as it would any other time? It would be great if you could answer this as it has puzzled my mind for a few years now.
Good description, my only issue is that Apple did not invent the capacitive touch screen. That would have been Bob Boie of Bell Labs in 1984, with the first phone using it as the Simon Personal Communicator from 1993. It could have even be considered a "smart phone" as it had paging capabilities, an e-mail and calendar application, an appointment schedule, an address book, a calculator, and a pen-based sketchpad. More found here: arstechnica.com/gadgets/2013/04/from-touch-displays-to-the-surface-a-brief-history-of-touchscreen-technology/
Sir,gud video.But i want to ask you a single question.iron nails and some other metals are good conductor.why my smart phone wont respond to touch made by iron nails..............
Is the introduction of in-cell technology the reason why newer iPhone screens seem to scratch so much more easily than they used to? My old Nexus 4 has hardly a scratch on it after living in my pocket for 2 years - my iPhone hasn't done nearly as well after just 1 year and most of the time it's on my desk.
I'd love to show this in my forensics class, but without CC, it's difficult for my deaf and hard of hearing students to get much out of it. Yes, the interpreter could sign, but it's difficult to watch a video and the interpreter simultaneously. Please turn on CC!
It uses On Cell technology, apparently the thin layer means that electrons are always bouncing up and down through the screen and you can detect whether there's something touching it is a conductor or whether it's an insulator by the way it disrupts the natural flow of electrons. what's cooler is that you can detect stuff that's not touching the screen too. Just turn on the water colour screen saver and hover your finger above the screen. Some electrons will make the jump to your finger and you can see the cool effect made by the phone.
That happens on the s1 and s2 as well. Gave my friend my old s1 after his phone stopped working and he's complaining everyday about it clicking without him actually touching. His old phone was one of the touch screens before the iphone. Tough little bugger though I seen him smash and throw that phone 100s of times over the many years and it never cracked the screen. It actually broke after almost or more than a decade from falling in a bucket of acetone. We were doing an experiment and it didn't turn out so well. His SIM card survived the madness so we cleaned out off and and he was upset so I said well here have a real smart phone... he shattered the screen by accidentally letting it fall out of his chest pocket 2 weeks later...
Why is everything thinner than a human hair, taller than double decker buses, longer than an Olympic swimming pool / football pitch and small enough to fit on the head of a pin?
I don't know if this question has been asked already ... but if there's a protective glass layer on the top, how can charge jump to our fingers, since glass is an insulator, isn't it???
Considering it's a pretty recent video, you shouldn't have stated that you can't operate a touchscreen with gloves. Samsung has that in the S4, and it works pretty damn well. Maybe you should have covered that instead.
Because any signal that is present for long enough is no longer new or useful information, so it's beneficial for our brains to save us from experiencing and therefore worrying about it.
This is a question you should make a joke video trying to answer this question: _"Has Anyone Really Been Far Even as Decided to Use Even Go Want to do Look More Like?"_
I love how you just read out three questions at the start and didn't answer them!
Just teasing ;) We do get so many questions it's impossible to answer them all, so we try to choose the ones we think you will find more interesting.
***** aww,. . stop it you. all those teasing make the viewer blush
・:*:・(*/////∇/////*)・:*:・
Eko ari wibowo and Que anime chick face in 3...2...
***** What about doing a quick answers video or series where you gather a bunch of questions, or even just frequently asked questions, and you do a short answer for multiple questions in one video.
For example, ill answer the first 2 questions in the video
1. Why do we get nervous? It is an evolutionary trait to get nervous when we are facing potentially dangerous situations to keep us on our toes so we can quickly fight or flight if needed.
2. Whats the worst that could happen by cracking your knuckles? Nothing. There is no known correlation between knuckle cracking and joint injury or arthritis.
Im genuinely curious about #3 though.
+Brit Lab I'd personally like to know how songs get stuck in your head...
This series is the only reason why I'm still subscribed to headsqueeze
Glad you guys are back :D
not that this channel isn't good because i enjoy it, but most of the questions asked at the beginning are answered by Michael Stevens on VSauce, another great channel
This is probably the best explanation of touch screen I've seen...
Yay. Headsqueeze is back!
Great vid.... If you get a. iPhone 3G In at sun at the right angle these lines can be seen. Fascinating!
My LG F3 has a capacitive touch screen. The glass on the front is wonderful, I have not gotten a single scratch on it since I got the phone, and its been through a lot. All of my other devices with screens have managed to catch a few scratches in the past, but not this phone.
this is what we need! not: what happens if the internet blows up and other future stuff!
This was superbly done.
Why do we get nervous?
Because getting nervous has evolutionary utility. We get nervous when we have to do something we dislike doing. There's a reason we don't like doing everything. Either it brings us pain and therefore can damage us physically, or it brings us shame/humiliation/embarrassment which all damage our reputation. Assuming everything else is equal the person with the better reputation and who experiences few things which cause pain has better survival/reproductive prospects than those who have poor reputation and who experience lots of things which cause pain.
This dawned on your body overtime so at some point it started doing whatever it does to make you feel uneasy about being in situations which may lead to humiliation/pain so that you avoid them. Of course sometimes it is best to deal with the nervousness and not run away, but nervousness does, for the most part, protect you from doing things that really aren't beneficial - like trying to satisfy your curiosity with regards to how it feels to shoot yourself with a gun, or the curiosity with regards to seeing how others react if you get up and run around in a circle screaming on a bus.
Thanks for this amazing explanation of the touch screen it's so helpful
This is awesome!! You deserve more views and subscribers!!
Is James May no longer doing videos on this channel?
Not for the moment.
Great episode, Greg.
Thanks!
3:07
In a capacitive touch screen no charge actually moves between the phone and your finger (i.e. there is no current going into or out of your body). The charge in the phone simply induces an opposite charge in your finger, and your finger and the driving lines become a capacitor. Good info tho, just wanted to clarify that part.
just saw this video on lifehacker - subscribed after watching. Really nice job and I'm keen to see what else you can inform me about
it was an interesting lecture about touch screens, simply explained and straight forward.
I wonder if you can make an explanation about wifi frequency, how does it hold and transfer data, and how does the receptors on the terminals receive that data ..
thanx in advance
Symbols on the "potassium bath" are backwards, or the arrows at least
Well spotted Reggie Mech, we've added an annotation for the less observant! Thanks for pointing it out :)
Glad you put the CERN note at the end and didn't give apple credit.
This is the first time I watch your video and I totally LOVE it.
So can you explain the difference between LCD, Amoled . . ..e.g ??
Oh so you guys have started uploading video again. Good.
Could you guys make a video about the first touch screen at CERN and the making of it? Never heard about it before. Love your show, would like to se more of Captain Slow.
do swimmers sweat while swimming?
If they're hot they will, otherwise not.
TheHue's SciTech you can't really be hot while swimming,the water is around 25-27C and thats not enough to raise your body temp
JoyOfMachine I don't recall the OP specifying a temperature-controlled Olympic swimming pool...
JoyOfMachine Of course it is. Your internal temperature is never the same as your external temperature and 25-27C is hotter than most external temperatures in the UK, granted of course you don't wear clothes while swimming, but 25-27C is hot!
I imagine they would sweat, they're doing intense exercise, they're internal temp would rise.
Do you think sprinters would sweat in 35C temperature while naked? It's the same question (assuming our clothes increase our surface temperature by ~7C, I have no idea how influential they actually are and obviously it depends on the type of clothes).
yes if the water is warm enough that their body (nervous system in particular) feels the need to cool itself. the water really wouldn't have to be very warm, people sweat walking through antarctica.
Here's a good one for you I'm sure my fellow viewers would enjoy regarding touch screen technology.
Quantum tunneling touch screens.
I've looked into this before but would love to see your take on it.
We're all nerds here right? If it has the word quantum in it then it must be discussed!
I've heard that there is another type of touchscreen which is based on something like an optic field and when you place your finger on it you disrupt it and camera like sensors can tell the position of the disruption.
Great video!
I am still a bit confuse.
First is for the capacitive touch screen. It uses 3 layers that the LCD and Protecting Glass are separated by Capacitive Layer. How could the LCD is still visible while it is covered by the Capacitive Layer?
Second is for the resistive touch screen. Where do you put the LCD? if it is also separated with the top layer by the middle layer, how could the LCD is still visible, too?
By the way, thank you for upgrading my knowledge :)
As a joint clicker I'd really like you guys to answer the question on whether it's really bad or not
u have a awsum collection of vedios...plez continue as u ar?
would a touchscreen work with a dead finger?
Yes? I believe it's the water content in our fingers that allows for capacitance, so as long as it hasn't thoroughly dried out, it should work.
+alkss20 Let me guess, you work at the morgue and you're really bored right now :'D
***** He really needs to... get a life.
***** You could say that pun stopped me _dead_ in my tracks didn't it ._.
+Jason Neu thats very punny
You guys talked about car sickness and motion sickness in general and why we get it.
But I always wondered how do motion sickness pills work?
How do engine immobilizers in our cars work?
that is a video I'd love to watch
What's cloud computing ?
Wow. Thank you for the insight. Amazing. My smartphone screen is mostly made of sand. But the process is fascinating .
if there are conducting lines crossing the screen. then how can i see the screen?
please tell me if you know
thanks in advance
How do the touch screens work INSIDE shop windows that you can use and operate from outside?
You're not actually touching the screen, just the glass of the shop window.
Also:
When I was at school (30 years ago!) there was a touch screen that used a frame around the screen to detect where your finger was placed.
I think it used IR diodes to map where the beam was broken.
Well, that was like the "gun" used in Duck Hunt for Nintendo. It was IR. :)
The shop window displays are generally very similar to the capacitive touch in phones. The main difference is the layer of glass between your finger and the measuring lines is much thicker so the screen just needs to be calibrated to the peak capacitance level when a finger is placed on the thicker glass.
thanks!
I guess I was way off. Doh!
***** yeah. Every notice in those old light gun games when you pulled the trigger the screen would flash? It wasn't for effect the gun would take a black and white picture at the same time and figure where the center of the white square is to determine your shot
very good and well made video.
*WRONG!* Capacitive touchscreen was introduced by LG with model Prada, released a full year before the iphone. So once again, just replicating, not innovating.
Apple alway make out they invented everything, where as in reality, they didn't really invent anything
Well, at the end...technically, CERN introduced capacitive touchscreen.... but I'm not all too surprised Apple would take the credit whoever actually did make it
Actually, touchscreen technology was already there even as the dial telephone was being phased out. Who invented it? I don't know.
the LG prada had a crappy touchscreen that failed to respond earlier than 2 hours after you touched a screen. Apple didnt claim they invented it. They claimed that they invented the first good, reliable touchscreen phone on the market which they did.
*NOT WRONG.* He said the iPhone led to capacitive touch screens being widely adopted in the smartphone market, not that Apple invented them or were the first to use them.
hi can you do a video on the how the whole thing work ,ie from the moment you touch the screen, to the moment you see the response on the screen due to the touch...and compare the processing time with the our sense of time(if we were the phone, what we have to do and how much time we consume doing so).......
How dose contactles charging your phone work. There are phones that don't have to be physically plugged in they just half to sit on some kind of pad.
Here is a really good question. I know the figures will likely not be correct but this is an example. Say someone were to try and shoot someone on a train which is travelling at 500mph, but the bullet only travelled at 400mph... does this mean the bullet would come out the barrel but then because it is travelling -100mph to the train's speed it would then mean it would travel backwards at 100mph and therefore end up penetrating the person who fired the bullet and not the person who was being shot at ? or would the bullet just simply not come out the barrel? or would it reach the person the same time as it would any other time? It would be great if you could answer this as it has puzzled my mind for a few years now.
How does the computer / smartphone / tablet's microprocessor exactly works
and how the simple conductors do so complicated calculations?
is the guerilla glass or whichever glass used conducting?
Good description, my only issue is that Apple did not invent the capacitive touch screen. That would have been Bob Boie of Bell Labs in 1984, with the first phone using it as the Simon Personal Communicator from 1993. It could have even be considered a "smart phone" as it had paging capabilities, an e-mail and calendar application, an appointment schedule, an address book, a calculator, and a pen-based sketchpad.
More found here:
arstechnica.com/gadgets/2013/04/from-touch-displays-to-the-surface-a-brief-history-of-touchscreen-technology/
well!! i have 1 question
you said that our fingers our conductor that why touch screen work
but when i tried metal pen i doesn't work why???
the surface area of the tip of your pen isn't big enough to be sensed by the screen
if u asked me on the street i still wouldn't know how touchscreens work
"it is ruddy strong"... so cute lol
Can you please elaborate Cross Race Effect? I've always been interested on it.
Does being pushed in a front/back facing pram as you were young, effect you getting sick riding the train/bus backwards?
Well, about the gloves, Asus has already developed phones that you can touch and use with gloves particularly the Zenfones.
What is consciousness?
What is the meaning of our existence?
From where do weekdays get their names? Why 7 days in a week?
Sir,gud video.But i want to ask you a single question.iron nails and some other metals are good conductor.why my smart phone wont respond to touch made by iron nails..............
Now I wondering are you guys siblings between that lady in previous video and you. You look so much alike!
Is the introduction of in-cell technology the reason why newer iPhone screens seem to scratch so much more easily than they used to? My old Nexus 4 has hardly a scratch on it after living in my pocket for 2 years - my iPhone hasn't done nearly as well after just 1 year and most of the time it's on my desk.
I'd love to show this in my forensics class, but without CC, it's difficult for my deaf and hard of hearing students to get much out of it. Yes, the interpreter could sign, but it's difficult to watch a video and the interpreter simultaneously. Please turn on CC!
So the BlackBerry Storm and Storm 2 were the resistive touch, correct?
Hey , Can you please make a video on Archimedes principle?
Who was the science fiction author who first used "SmartGlass" as a concept? Thats what this certainly is.
The first capacitive touchscreen was first used in 1976. That shows you how far ahead technology is used before it hits the public.
Actually, the "first" layer on a phone is the shatter proofing...
It is what makes the glass stay together even if it has cracked...
Would be a pretty boring video if they listed the shatterproofing, the oleophobic coating, every glue layer, every part of an LCD, ...
I think that the shatter proofing is a big part of the design of the phone display assembly.
***** Important? Yes. Relevant to this video? Not at all.
TheHue's SciTech
He made it seem like it is glass that you are touching. it is not, it is a thin layer of plastic.
The arrows for the potassium/sodium animation were wrong to what you said.
how would the protective screen disturb charge??
but some phones like the S5 can sense touch even above the screen or pretty much anything if you increase the touch sensitivity in the settings, how?
It uses On Cell technology, apparently the thin layer means that electrons are always bouncing up and down through the screen and you can detect whether there's something touching it is a conductor or whether it's an insulator by the way it disrupts the natural flow of electrons. what's cooler is that you can detect stuff that's not touching the screen too. Just turn on the water colour screen saver and hover your finger above the screen. Some electrons will make the jump to your finger and you can see the cool effect made by the phone.
That happens on the s1 and s2 as well. Gave my friend my old s1 after his phone stopped working and he's complaining everyday about it clicking without him actually touching. His old phone was one of the touch screens before the iphone.
Tough little bugger though I seen him smash and throw that phone 100s of times over the many years and it never cracked the screen. It actually broke after almost or more than a decade from falling in a bucket of acetone. We were doing an experiment and it didn't turn out so well. His SIM card survived the madness so we cleaned out off and and he was upset so I said well here have a real smart phone... he shattered the screen by accidentally letting it fall out of his chest pocket 2 weeks later...
3 or 4 different types of touchscreens :D WOO
thank you mate :D
Why is everything thinner than a human hair, taller than double decker buses, longer than an Olympic swimming pool / football pitch and small enough to fit on the head of a pin?
Could you please tell us why we love sugar and chocolate so much!
I don't know if this question has been asked already ...
but if there's a protective glass layer on the top, how can charge jump to our fingers, since glass is an insulator, isn't it???
Look up indium tin oxide, usually the glass is coated by this transparent material and I guess this is what allows charges to go through. I'm not sure
Can neutron star matter splash and what is the surface tension and viscosity ?
When is James May's Q & A returning?
Keep up the gud work and well like ur vids more!
hi, which devices on market now are still using the old technology ? thanks in advance
You can use regular gloves with gaxely s5
could you make a video on working of a GPS
Considering it's a pretty recent video, you shouldn't have stated that you can't operate a touchscreen with gloves. Samsung has that in the S4, and it works pretty damn well. Maybe you should have covered that instead.
People adapt to their surroundings, like how a bad odor will be less or even unnoticeable if it stays around long enough. Why?
Because any signal that is present for long enough is no longer new or useful information, so it's beneficial for our brains to save us from experiencing and therefore worrying about it.
and, for what was the first touch screen used ?
What is going on in our brain when we learn something and what this information that we learned really is in our brain?
How does the motion sensing in smart phones work??
I had gloves that worked with my ipod touch and they were just normal winter gloves lol
Is it possible your tablet can change its settings when the screen is on when in your bag with other stuff
Actually you can use any gloves on any Nokia Lumia device becouse they have super sensitive touch
Wait, what? Oh boy, so do you mean? No fingerprint? Whoa! Even with Microsoft, Nokia did some cool things.
Which software did you use to create those animations?
ur genius buddy
now how is music played through headphones/earphones???
So touchscreen tech has been around since the 1970's and all of this time I thought it was a recent invention.
How do touch screens work with gloves in some modern phones (Lumias, for example)?
hi... can you explain how does aura and aroura form
Is James May ever coming back to Head Squeeze for a new series of Q & A?
Are you paying him to be here?
I don't think so. They've stated in the comments before that he's not going to be on HeadSqueeze anymore.
How do you remove the green-screen artifacts so cleanly?
very very very goooooooood
Thanks man
what about the note three's stylus?
How is strength magnified by pulleys?
So every time I touch the screen of my i-Pad, I could quite literally charge myself.
Btw how do computers give you personalized results?
What is the tool they use to create SD card regular, mini, mircro ?
Hm, my Nokia Lumia can be operated in all types of gloves (wool, leather, sports). Maybe that's why replacing a broken one was so expensive.
This is a question you should make a joke video trying to answer this question:
_"Has Anyone Really Been Far Even as Decided to Use Even Go Want to do Look More Like?"_
It Is Hard To Read Text That Is Capitalized In This Way
Derek Leung
It is a copy-pasta...
:-P
***** haven't heard about that one link please? But still I don't think it was that capitalization of the sentence that was confusing.