So I understand that the S4 has a thermometer? Does anybodys work right? Its 70 degrees right now and S health is showing 88.
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geoldr said:
So I understand that the S4 has a thermometer? Does anybodys work right? Its 70 degrees right now and S health is showing 88.
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The reading will reflect both the heat generated by the phone as well as any temp increase provided by your hand. It's probably even higher when the phone is first removed from your pocket. Not sure how it would ever be an accurate gauge of actual outside temp unless you left the phone setting untouched outdoors for a while.
I noticed the same thing, the temp reading is always way higher than the actual surrounding, seems pretty pointless to even include a thermometer is it reads the phones temp, and not the actual surrounding temp... Major fail on that one Samsung...
I'm pretty sure it's part of the barometer that's in the phone which also calculates humidity, pressure, etc and from what i can tell, those readings are pretty accurate.
tdesbien31 said:
I noticed the same thing, the temp reading is always way higher than the actual surrounding, seems pretty pointless to even include a thermometer is it reads the phones temp, and not the actual surrounding temp... Major fail on that one Samsung...
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Many phones do include temperature and humidity sensors, but it's rather dumb of Samsung to try and use that temperature gauge for anything useful.
That said, it's good to have if you're overclocking, which unfortunately isn't possible yet (or necessary IMO)
danstheman7 said:
Many phones do include temperature and humidity sensors, but it's rather dumb of Samsung to try and use that temperature gauge for anything useful.
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I disagree. Imagine hiking or other outdoor activities where you can hang the phone from your waist or backpack? It's like the Casio Pathfinder watches... they too read temperature way too high when you wear them on your wrist, but if you leave them on your backpack when hiking they read the air temp very accurately. I think Samsung did a very good job, considering that they have orders of magnitude way more hardware heat to deal with than Casio.
danstheman7 said:
Many phones do include temperature and humidity sensors, but it's rather dumb of Samsung to try and use that temperature gauge for anything useful.
That said, it's good to have if you're overclocking, which unfortunately isn't possible yet (or necessary IMO)
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Most phones have temp sensor in battery or cpu. S4 has a separate sensor near the bottom of the phone. It will be inaccurate but less so then other phones. Haven't seen a phone with a humidity sensor (other then the water indicators but they are not electronical).
jsstp24n5 said:
I disagree. Imagine hiking or other outdoor activities where you can hang the phone from your waist or backpack? It's like the Casio Pathfinder watches... they too read temperature way too high when you wear them on your wrist, but if you leave them on your backpack when hiking they read the air temp very accurately. I think Samsung did a very good job, considering that they have orders of magnitude way more hardware heat to deal with than Casio.
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Dumb as in the way it was implemented, not in the idea of using it. Adding such a sensor is a good idea, but if it's not in a location which will be very reliable, it's not very intelligent.
Related
does anybody else notice too much heat at the bottom of its g1
all of them are, ive had 2 with the sam prob, only when charging and constant non stop use (wen i first got them!) now, its only when its charging, once i plug it out, it cools down.
magicman1987's analysis is incomplete and inaccurate.
Heat is caused by three things; the friction between electrons and conductors, and infrared heat from light sources, the latter of which would be negligible and due to the screen and other LEDs. Electron friction is the primary culprit and occurs due to the following;
1) battery charging *AND* discharging -- lots of electrons are moving fast. Electron friction. MAJOR source of heat.
2) device usage - CPU, wireless radios, etc. Electron friction. Note that the CPU and cell network radios are located in the area you are complaining about getting hot. MAJOR source of heat.
This is all normal and is nothing to worry about.
thanks for the quick reply. another problem that concerns me. is that my speaker some times stops working and i was wondering if the heat have something to do with..
lbcoder said:
magicman1987's analysis is incomplete and inaccurate.
Heat is caused by three things; the friction between electrons and conductors, and infrared heat from light sources, the latter of which would be negligible and due to the screen and other LEDs. Electron friction is the primary culprit and occurs due to the following;
1) battery charging *AND* discharging -- lots of electrons are moving fast. Electron friction. MAJOR source of heat.
2) device usage - CPU, wireless radios, etc. Electron friction. Note that the CPU and cell network radios are located in the area you are complaining about getting hot. MAJOR source of heat.
This is all normal and is nothing to worry about.
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Geez, I think I earned enough credits reading that to obtain a MS EE.
jashsu said:
Geez, I think I earned enough credits reading that to obtain a MS EE.
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lmao!!! ...i have also wondered why the g1 at times got so dam hot!! thanks for the info lbcoder!!
nearxos said:
does anybody else notice too much heat at the bottom of its g1
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Probably yours dream has a hard on. It happens...
The way to fix it is to put it over an Nokia N95 or HTC Magic, Connect them both with a USB and then rub them together for about 2 minutes. Increase the speed of the motion and dont' worry if they start vibrating.
After that, let them rest for a while and you're good to go.
This thread is becoming stupid and juvenile....and closed
Has anyone else noticed a lot of heat near the bottom buttons front and back?
Lieutenant_Dan said:
Has anyone else noticed a lot of heat near the bottom buttons front and back?
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Yep. I can feel it
Not any more so than on my Captivate.
Can you check and post your battery's temperature? (you can have it using System Panel or many other system apps). Had a Galaxy S (Canadian version - i9000M) before and the battery was sometimes as high as 50-55 Celsius, which may or may not have had something to do with the internal SD card dying on many models. Hopefully the big Atrix battery doesn't have this problem.
yea this thing is kinda hot
I agree. It is noticeably warm.
I think we'll generally see some extra warmth because of the h/w, but we also got to remember, we're playing none stop with these suckers since they're new! Most of my phones got warm often the first few days...
Between h/w breaking in , battery breaking in, and users breaking in... i'm thinking its a non-issue (hoping its a non-issue!!)
kenyu73 said:
I think we'll generally see some extra warmth because of the h/w, but we also got to remember, we're playing none stop with these suckers since they're new! Most of my phones got warm often the first few days...
Between h/w breaking in , battery breaking in, and users breaking in... i'm thinking its a non-issue (hoping its a non-issue!!)
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Yeah im thinking the same
I'd still like something a *little* more scientific, like battery temp...
I've noticed the same thing, it's noticeably warm on the bottom. If it was the battery temp itself, you'd expect that to make the upper center warm, where the battery sits.
My battery is running at 32 deg C...I'll have to crank up some apps and see if that changes drastically in proportion to the bottom of the phone heat. Right now it's sitting mostly idle and doesn't feel as warm as I have noticed when playing around with it for a while.
It's most likely where the heatsink is dispersing most of the heat from the processors and other components. Keep in mind this thing has a dual core processor. This isn't your TI-83 graphing calculator from high school.
novaIS350 said:
It's most likely where the heatsink is dispersing most of the heat from the processors and other components. Keep in mind this thing has a dual core processor. This isn't your TI-83 graphing calculator from high school.
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I don't think there is a "heat sink" http://tegradeveloper.nvidia.com/tegra/forum/heatsink-needed
ARM processors don't heat much, it has to be the battery that's causing this. Didn't know where the battery was, but it is kind of weird if the battery is near the top and the heat is near the bottom. Still sounds like a possible issue to me (I'm a heavy user - I *WILL* use it a lot every day, so it has to be able to "stand the heat"...)
I ran speedtest about 15 times in a row to get the phone to warm up. The battery is up to 37 deg c, the bottom of the phone is noticeably warmer than any spot on the battery.
the bottom edge of the battery is a good 1.5 inches away from the center of the "hot spot"on the bottom. I haven't seen a hardware tear down, but I'd guess there's nothing to worry about -It's not "hot", it's just warmer than the rest of the phone.
35c
my battery is running at 35c right now but is not where the heat i am feeling is located. This head is at the base of the phone near the bottom speaker.
Ok, well 30-something C seems fine to me. Could it be the LEDs used to light the buttons?
My nexus one got just about as warm if I played with it as much. So I don't find any issue with it.
http://www.ifixit.com/Teardown/Motorola-Atrix-4G-Teardown/4964/1
Damn near everything in the phone that can generate heat is located in the bottom third of the form factor. This should explain why we can feel it.
The battery is in upper back of the phone.
I think it should be the baseband chip or the Tegra2 that making heat.
When I use the phone its warm just like my Captivate although everyday on my 30 minutes drive to work the phone gets really hot. I have tried it with and without the charger in it and its just hot regardless. Anyone else have the same experience while using the GPS for extended periods of time.
I have some meteorological and aviation training and so I downloaded PressureNet, but when I look at my readings history it is not corresponding to the pressure measured by actual NWS equipment. My barometer seems to be stuck between 28.88 and 28.90. Right now the airport 1.5 miles away from my house is measuring 30.19 but mine still says 28.89.
I have verified the reading that PressureNet is displaying with several other barometer apps and they are all the same. I'm thinking I may have defective barometer.
Has anyone else experienced anything like this? BTW my phone is a second batch 8GB made in Korea.
ChrisDTC said:
I have some meteorological and aviation training and so I downloaded PressureNet, but when I look at my readings history it is not corresponding to the pressure measured by actual NWS equipment. My barometer seems to be stuck between 28.88 and 28.90. Right now the airport 1.5 miles away from my house is measuring 30.19 but mine still says 28.89.
I have verified the reading that PressureNet is displaying with several other barometer apps and they are all the same. I'm thinking I may have defective barometer.
Has anyone else experienced anything like this? BTW my phone is a second batch 8GB made in Korea.
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You have to also consider that you are comparing a phone's barometer to professional-grade equipment.
ihakim said:
You have to also consider that you are comparing a phone's barometer to professional-grade equipment.
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The range of barometric pressure is basically only 28.00 to 32.00, so for it to be off nearly an inch and half means it not doing anything at all. And the historical logging is no better, it only stays between 28.8 to 28.9, when it should be changing with the weather.
I noticed mine to be inaccurate too, but it's on it's way back to LG due to rear glass breakage. I too work in Aviation, and was wondering if phone could be of use, but like yours, mine read low.
What altitude are you guys at? Note that atmospheric pressure reported in aviation and weather are corrected for source altitude, and the phone is not. If you are not at sea level, it will always read low.
Erica Griffin stated that they use phosphorus in the screen of the Sony Z2.
https://www.youtube.com/watch?v=SS5DlQIhLTM
Can anyone confirm this? Do they use phosphorous substances in the screen? Is this phosphorus radioactive? Way back the use of (some form of) phosphorus was banned in watches etc. because it destroys your eyes.
SuperMarioGalaxy said:
Erica Griffin stated that they use phosphorus in the screen of the Sony Z2.
https://www.youtube.com/watch?v=SS5DlQIhLTM
Can anyone confirm this? Do they use phosphorous substances in the screen? Is this phosphorus radioactive? Way back the use of (some form of) phosphorus was banned in watches etc. because it destroys your eyes.
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A banana is very radioactive as well. Do you avoid eating bananas?
SuperMarioGalaxy said:
Erica Griffin stated that they use phosphorus in the screen of the Sony Z2.
https://www.youtube.com/watch?v=SS5DlQIhLTM
Can anyone confirm this? Do they use phosphorous substances in the screen? Is this phosphorus radioactive? Way back the use of (some form of) phosphorus was banned in watches etc. because it destroys your eyes.
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This is enough internet for today... (just 1PM :crying
I'm actually serious about this. The use of some phosphorus substance is banned because of its ill effects. So unless someone can verify what is used on this phone I won't buy it and suggest others to keep from it also.
SuperMarioGalaxy said:
I'm actually serious about this. The use of some phosphorus substance is banned because of its ill effects. So unless someone can verify what is used on this phone I won't buy it and suggest others to keep from it also.
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Good news! That means there will be one more device available for someone who really wants it.
Why is everyone taking this so lightly or as a joke? Detrimenting one's eyesight is no joke to me...
SuperMarioGalaxy said:
Why is everyone taking this so lightly or as a joke? Detrimenting one's eyesight is no joke to me...
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I don't think it's a joke.
Sent from my D6503 using XDA Free mobile app
PLEASE..... , she's a great reviewer (when reviewing) , but her ocd problem with over analysing every little tiny aspect of a mobile phone is a bit too much for me..:silly:
How many different things do we have to be careful about this week, as long as you do everything in moderation and NOT to access then you'll be fine..............just enjoy your phone & chill out...
LOL! Usually paid Samsung trolls like you suck, but you're hilarious.
Sent from my GT-N7000 using Tapatalk 2
Zamboney said:
LOL! Usually paid Samsung trolls like you suck, but you're hilarious.
Sent from my GT-N7000 using Tapatalk 2
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& this is aimed at who? you own a Samsung Galaxy Note....:laugh:.
Does that mean when you are sleeping with the phone charging next to your bed the phosphorus meanines come out through one of the flaps & nuke my eyes & sperm :silly:
Phosphorus is not radioactive, infact it's quite the wonder element. It's used in applications such as softening water, used to remove impurities from glass, used as fertiliser, heck you piss it out as the substance is formed in your body in the kidneys when removing contaminants.
I haven't watched the video but since it's that same woman who was bothered about staining when the device was being handled by hundreds of people, I have little faith in what she says anyway.
Zamboney said:
LOL! Usually paid Samsung trolls like you suck, but you're hilarious.
Sent from my GT-N7000 using Tapatalk 2
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I'm no paid Samsung troll. If anything, I'm a bit of a Sony fan. I didn't want to make a huge deal out of this to scare people, hence the lame title etc. I just wanted to know if there really is a harmful substance used in the screen.
TheOnlyIntruder said:
Phosphorus is not radioactive, infact it's quite the wonder element. It's used in applications such as softening water, used to remove impurities from glass, used as fertiliser, heck you piss it out as the substance is formed in your body in the kidneys when removing contaminants.
I haven't watched the video but since it's that same woman who was bothered about staining when the device was being handled by hundreds of people, I have little faith in what she says anyway.
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Yes I'm perfectly aware that Phosphorus isn't radioactive in itself and its a necessity to life and its being wasted when we pee in a toilet, thus degrading the soil unnecessarily. But there are isotopes that are radioactive and that some harmful phosphorus substances have been used in for example watches that illuminate the hands in the dark. This was later deemed dangerous to eyesight.
One misconception I want to clear: Although Erica might be a "bit" neurotic, or maybe just because of that, she certainly knows her nitbits. She never said anything about the phosphorus being dangerous. It just rang in my ear. She stated at 5:34 that they used red and green phosphorus and a blue backlight. The Triluminos tech is explained in the video so that a blue backlight excites the red and green phosphorus and so they get a wide color gamut. I'm no physicist but maybe someone else can explain this better. Basically the problem is not that it would ill you from your bedside table, but when the display is on, whatever the phosphorus is emitting when excited (be it radioactive or only light) is going straight to your eye. If you use this technology for several hours a day for years its bound to affect something, IF there are any effects to be had. I'm not trying to cause a panic or steer people away from buying this (I have mine on preorder too), I would just want to understand what this is.
I'm not completely sure but I think that traditional LEDs don't use this kind of technology and they use regular diodes with no phosphorus in them.
Thoughts? Physicists that could explain this?
Jeesus dude stop being so psichotic. I mean with all current regulations and safety requirements do you really think a company size of sony would use something harmful to human beings? Maybe you should worry about GM foods you ingest everyday, instead of such trivial things.
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feis said:
Jeesus dude stop being so psichotic. I mean with all current regulations and safety requirements do you really think a company size of sony would use something harmful to human beings? Maybe you should worry about GM foods you ingest everyday, instead of such trivial things.
Sent from my D6503 using Tapatalk 2
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I'm in no way psychotic, wtf?! Many have used harmful stuff. We still don't know if cell phone radiowaves are harmful in the long run. Also electrical equipments create magnetic fields that affect us. You are deluded to think that no-one would produce anything harmful either by not knowing it is or knowingly. Jfyi, I try not to eat GM-foods but if I didn't eat them at all, life would be really hard. I just don't fret about it. Usually I don't fret about things at all, this just sounded very weird to me. And this is not a trivial thing to me, I value my eyesight thank you very much. I've been grown to think light emitting phosphorus is harmful. Same way if you heard that something had asbest in it, you would go inhaling it right away, right?
banzibaby said:
does that mean when you are sleeping with the phone charging next to your bed the phosphorus meanines come out through one of the flaps & nuke my eyes & sperm :silly:
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lol made my day! +1
you would go inhaling it right away, right?
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Yes ......I am inhaling right now.....& boy is it good.......
I mean we live in such a world that you cannot possibly avoid everything that maybe harmful to you, and there are many unclear things and their effects to human in todays technology, and i can guarantee you no one in this forum can give you answers for your question with proof or say medical experments, so just go for other phone if you are that worried about this stuff. For me this is trivial, and i have bigger problems than worrying about something i know nothing about and just heard a single word about it in a single review. Ps english is not my native language, i probably meant paranoid not psychotic.
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feis said:
Jeesus dude stop being so psichotic. I mean with all current regulations and safety requirements do you really think a company size of sony would use something harmful to human beings?
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This is exactly it, if the phone screen emitted UV radiation (which is what I believe you're thinking of) there would be warnings in place explaining if it did and the amount it would output. Not only that but even if the diodes had enough power to emit UV radiation, there is a glass panel in the way and if you didn't know already, glass blocks upto 99.99% of UV light, an example of such is when you see someone who wears transition glasses, the glasses don't transition when in side of the car, even if strong sunlight is shinning through simply because the windows are blocking UV light.
Our phones aren't equipped with flashbangs, they aren't going to blind us.
As for radiation in general, all elements have radiation isotopes, most naturally found elements are those that have decayed from another element and become stable since the half-life becomes in the millions of years range.
Hey OP, It's phosphor - not phosphorous. Plasma and many other displays use those.In fact, Panasonic's VT/ZT series use fast switching phosphors and those are simply the best TVs in the market. They are not harmful as long as you don't break the glass and start poking at them with your finger. Same thing applies to batteries. You can chillax now.
It would seem that we have another first, and this one is not so good. The A1 is the highest radiation emitter of any phone tested. I'm not exactly sure what that means since there is no clear case for the radiation being harmful, but it is something to keep in mind.
https://www.digitaltrends.com/mobile/xiaomi-mi-a1-one-plus-5t-emit-most-cellphone-radiation/
This is known for quite a while, I don't think it would be much significant compared to other devices to worry about. Anyways the best a user can do is to avoid the device being near your head. Nothing more.
Sent from my Mi A1 using Tapatalk
pooniaprashant said:
This is known for quite a while, I don't think it would be much significant compared to other devices to worry about. Anyways the best a user can do is to avoid the device being near your head. Nothing more.
Sent from my Mi A1 using Tapatalk
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If you're scared, you may want to avoid keeping it in your pocket, where it's close to the only thing more important than your brain for a male
BtB said:
If you're scared, you may want to avoid keeping it in your pocket, where it's close to the only thing more important than your brain for a male
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If you're scared, you should avoid sunlight because it has a lot more harmful radiation than this phone.
Thanks to Tissot I'm infertile but I love Gcam.
ccalixtro said:
Thanks to Tissot I'm infertile but I love Gcam.
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Lol, believe me. It's nothing significant compared to any other smartphone. Other than that, you made me giggle for sure [emoji23]
Sent from my Mi A1 using Tapatalk
Hahaha...you guys are a hoot. I'm not scared, just found it an interesting data point. Since there is scant evidence of it being harmful radiation, I'm not worried about it. But what is this about sunlight?
KB_Thailand said:
Hahaha...you guys are a hoot. I'm not scared, just found it an interesting data point. Since there is scant evidence of it being harmful radiation, I'm not worried about it. But what is this about sunlight?
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The evidence is not 'scant'. It is mixed. Visible light is one form of non-ionising radiation which is probably what the sunlight comment was referring to which is also bogus. The health effect which we are interested are Microwaves/RF/ELF, not sunlight.
Thanks Xiaomi, now im cancer free
barrack1 said:
The evidence is not 'scant'. It is mixed. Visible light is one form of non-ionising radiation which is probably what the sunlight comment was referring to which is also bogus. The health effect which we are interested are Microwaves/RF/ELF, not sunlight.
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Thanks Professor Science. Please note the WINK after my sunlight statement. And yes, I do realize that UV, X-ray and Gamma rays are dangerous if you are unlucky.
Since scant is defined as 'barely sufficient or adequate', I stand by my use of the word as there are no studies with the 'smoking gun' proving harm from the RF energy produced by cell phones, while some of the studies indicate a 'possible' harmful link. WIth all the various forms of radiation we are exposed to as modern humans, I would think that cell phones would be one of the lessor issues, but that is a hypothesis that is still open to debate.
KB_Thailand said:
Thanks Professor Science. Please note the WINK after my sunlight statement. And yes, I do realize that UV, X-ray and Gamma rays are dangerous if you are unlucky.
Since scant is defined as 'barely sufficient or adequate', I stand by my use of the word as there are no studies with the 'smoking gun' proving harm from the RF energy produced by cell phones, while some of the studies indicate a 'possible' harmful link. WIth all the various forms of radiation we are exposed to as modern humans, I would think that cell phones would be one of the lessor issues, but that is a hypothesis that is still open to debate.
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Why should the wink change the context of your statement since it was dismissive and snarky anyway?
And if you know anything about science, a smoking gun is a very high standard to reach and in any case, the level of funding for that sort of research is scant since it goes against the direction of big industry. A recent '17 rat study which was remarkable for the size of its subject population and type of brain cancer which is on the increase for humans, found cancer occuring even though the levels of radiation was below the cut-off point for heating levels which seems to go against prevailing assumptions about potential problems of non-ionizing radiation, so making an insinuation that its just like sunlight isn't helpful.
barrack1 said:
Why should the wink change the context of your statement since it was dismissive and snarky anyway?
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Coz when we talk, tone of voice matters, we can say if someone is aggressive/serious/sarcastic from tone of voice.
We use emoji in text to lighten the tension in text.
stelariusinfinitek said:
If you're scared, you should avoid sunlight because it has a lot more harmful radiation than this phone.
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Luckily enough, the part I was referring to before does not see lots of sunlight
PS: this post does not have any scientific value.