Can the Flash Take a Hands-Free Selfie? (Because Science w/ Kyle Hill)

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The Flash is the fastest man alive, but is he fast enough to take his own selfie? Kyle has the photographic science on this week's Because Science?
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[@Nerdist]

*The "Kyle is wrong!" FAQ* 1. For the mega-selfie, because of the Earth's curvature, the Flash would have to be standing on something over a dozen meters high. That's why I didn't say exactly 18.6km -- he'd have to travel a bit further than a straight line would dictate. 2. In these examples I am only considering the photons that hit the Flash the moment he's at the location he poses. I am not considering all the photons that hit him while he's running around, causing streaks. 3. These won't be perfect pictures (streaking, blurring, etc.), but the Flash would be in them! (UPDATING) -- KH

[@TheViewer_]

Nerdist Doesn't matter to me if there were a few flaws, it's Kyle, Kyle's right.... 🎶 *Because Science!* 🎶 Man, I love this show.

[@TheViewer_]

Nerdist Plus, regarding the flaws, I can't even get a good picture the first 3 times, so, The Flash could just try a few times and would eventually get a decent photo

[@namegoeshere975]

what would the maximum distance be if he were standing at sea level?

[@ABaumstumpf]

name goes here - there are many online calculators for horizon distance. It is quite short actually. if both the camera and the selfy are to be taken at normal height then at ~5km the feet drop below the horizon.

[@besknighter]

If the shutter stays open for 125us but the Flash stays only for 62us in his pose (because he took 63us to reach there), wouldn't he be ~50% "transparent" in that picture?

[@butterpigyy6349]

1700s: why do we fall on the ground? 2017: is the flash fast enough to take a hands free selfie?

[@vladimiradidas1945]

Benny Nguyen lmao so true. We move on from generation but we still keep asking questions.

[@jarosbodytko6462]

Too bad the questions are getting dumber...

[@Napoleonic_S]

Jaros Bodytko There is no dumb question, because science.

[@grndragon7777777]

Well it's either this or quantum mechanics

[@richardlucier1889]

@Gamenbob YT (slow impressed 👏) well played sir

[@nizar4070]

Why is Thor talking about flash?

[@Nerdist]

I love f***ing up the timeline -- KH

[@lukaskmitas1917]

and why is Vegito talking to Thor?

[@biohazard724]

Lukas Kmitas half of Vegeto is Vegeta, father of Trunks "what's a paradox?" Briefs. He's related (sort of, fusion is weird) to someone who can't stop messing with time even if his life depended on it.

[@garbage4857]

Frog Tiddie it's not original.......

[@yayu984]

Steve Boom it's irony...

[@justinritchey2967]

"Wanna see me run to that mountain and back?" ...."Wanna see the picture of me up there?"

[@syfarthewolf9139]

xD

[@user-mh2bw4hu3o]

Quickster Reference

[@severablegibbon]

Spongebob

[@BigFraz0]

Is anyone else curious how Kyle writes/draws so well 'mirrored' so its the right way for us?

[@danm8004]

Fraser Soley-Peters I think he probably does it not-mirrored then mirrors the recorded footage

[@siddiqueunar3630]

Dan Menzies yeah sometimes he draw with right hand and some times he draw with left hand

[@Oddi0]

Dan Menzies Precisely.

[@dorcohen9808]

Fraser Soley-Peters some parts are mirrored at editing, and one of the more complex drawings are pre made, just my guess

[@cameoshadowness7757]

Sometimes he messes up, especially in his older videos. Sometimes they speed up his writing because he takes long to do it.

[@MrOlumide69]

Who here is only subscribed to nerdist because of "Because Science"

[@Nerdist]

Me -- KH

[@MrOlumide69]

Nerdist oh um hello there kyle

[@TheViewer_]

Olumide Ojo ( *Me* )>✋👨

[@JungleAsian]

And Muskwatch.

[@garrettmp17]

Olumide Ojo me

[@karencrampz]

I find myself saying, "Because.. science" a lot now a days... thanks for that!

[@Nerdist]

Of course! -- KH

[@karencrampz]

In all my years being on KZbin, I've never had a creator reply to my comment! Thanks Kyle! Love your work :)

[@legends9340]

Karen Attridge you’re beautiful because science

[@grndragon7777777]

Is it because science?

[@johnstreutker5235]

Something stood out for me early in the video when Kyle said the camera would only fall about the diameter of a small molecule... Wouldn't the vacuum created by Flash moving his hand away from the camera increase that? There's also the fact that everything has it's own gravity so when he pulls his fingers away, the camera is going to want to follow the gravity created by an infinite-mass finger. For some reason I'm just especially inquisitive today. Feel free to poke holes in both of my theories :)

[@faruksemihsahin]

I dont know if you are still around after 6 years but thats the reason Speed Force exists. It doesnt only protect The Flash. It protects us mortals too. It creates an aura (similar to a bubble) around him so that he doesnt become a black hole with infinite mass when he runs resulting probably the whole solar system (in a couple of hours) collapse into him :).

[@billysbilbolag2050]

That camera that you could see light move with truly blew my mind

[@saad1653]

Because Science and MUUSKWAAAATCH are the only reason i am subbed. Talk about the new spacesuits by dad tho.

[@Nerdist]

Oh, we shall -- KH

[@paulaburrows8660]

Just use a timer.

[@Nerdist]

Not cool enough. -- KH

[@paulaburrows8660]

Nerdist true, looking forward to your next vid.

[@TheViewer_]

Nerdist I do stuff like that when I meet up with friends, over-complicate things to sound cooler, learned it from the best, ladies and gentlemen, Kyle Hill, *que applause* 👏😀👏😀👏😀👏😃👏😃👏 😃 Also, *Because Science!*

[@obamabarrack7415]

PAUL Burrows but he outran instant teleportation

[@paulaburrows8660]

Obama Barrack I know, I was just trying to be a smart arse.

[@SNOWSOS]

I've seen a 13 old kid drab while his cellphone is mid fall, I'm sure the Flash could manage.

[@megamanatee2351]

this series is the only reason im subscribed

[@tacobeeznut]

Its because the rest of nerdist is pretty shitty.

[@ncmcchannel9214]

He could just go back in time to when he pressed the button, because fuck the timeline

[@NEGATI0NofP]

It might be interesting to see what the Flash could do with a digital camera and the *"rolling shutter effect"* both from the perspective of creative photography and the maxim distance he could travel away from the camera.

[@alanperez3566]

"If you're the flash, selfie sticks are even more pointless" lol

[@continuum6349]

The time it takes for the button press to register to the motherboard and for that motherboard to send the signal to the camera completely changes the variable

[@jakecallum3051]

Hey Kyle here's something I've been wondering. Could Yondus arrow (the one in guardians of the galaxy) go through captain Americas shield.

[@ilyasbasuki3207]

Unlikely. Vibranium is near indestructible and can only be damaged by other vibranium weapons and reality/cosmic level attacks.

[@1Atlkid]

Ilyas Basuki on that same thought, I wonder if the alien invasion gave birth to new armor to be made from.

[@paulcoy9060]

The metal Yondu's arrow is made from is called "yaka" on his world, and it appears to be unique to Centauri IV. In the movie universe, it can be affected by Yondu's whistling, so it must be capable of absorbing sound energy, just like the comics. But it hasn't shown any cutting ability on par with adamantium or vibranium, so I would say no. But he could cause it to loop around and stab Steve.

[@anastasiabeaverhausen8220]

Just saw Because Science on this weird over-the-air broadcast tv station the other day, was mesmerized, and fell totally in love with you and your teaching method!

[@tylor305]

Hey Kyle. love each and every single one of your video's, not only because of my love for comic's and sci-phi but because you manage to find a way to explain everything in way we can all understand. Please don't stop what you do.

[@stacypovey5737]

Err that's not how photography works. The Flash has to beat the time from when the button is pressed to the time when the shutter is open. The shutter time expresses how long the shutter remains open and so is how long the flash must remain stationary for there to be a picture of him equal in density to an object in that had been in position the whole time. If it were a high speed video he has to be even faster to move in the time between frames.

[@jakob1425]

I love you Kyle Hill.

[@Nerdist]

Thanks Barry. -- KH

[@saad1653]

Nerdist Flash and Thor DC and Marvel is finally getting along

[@KarunMano]

No homo right?

[@smartzapeple1106]

Barry Allen But is Kyle Hill... *The King of The Hill*

[@0wasp0]

That girl taking selfie impression is gold! 😂

[@wikkidspork9492]

I was just thinking about this Friday night on a date, I'm glad you made this video. It's also crazy timing

[@chrisjimenez2192]

*OMG I just realized Kyle would make a great Barry Allen!* Oh so handsome! 😄😘

[@magnathrax7360]

Shione Cooper Nah, he is a better Thor imo

[@ahmetkurum4114]

Is it possible for Flash to rip your heart with shaky hands, pulling off a "Wells" ?

[@Darkraddish]

Ahmet Kurum remember the time when Barry phased on a tanker to remove the bomb in his wrist(the one that trickster put)? Maybe it is the same physics

[@seanbichler2002]

i find it hilarious just pausing through out the video and looking at his face😂

[@taytd]

Love your videos. Also the person hi at the end. Good stuff.

[@Nerdist]

At what speed does the "Speed Force" kick in? NEW mini-ep over on my Insta: instagram.com/sci_phile/. Thanks for watching! -- KH

[@kylo-juju3796]

like when you already know the answer but you like so much the show that you just shut up a watch

[@panthor109thabest7]

Nerdist it is always open flash just needs to go deeper. So anything above human

[@panthor109thabest7]

Nerdist look up Godspeed rebirth. He can be everywhere

[@panthor109thabest7]

Nerdist as long as he is running he will get faster

[@nicholasepsilon3534]

what is the flash's normal running speed? :) as a human, not tapping into the speed force.

[@palm5225]

Wow weird question but amazing video. I really love u and ur brilliant personality. Thx ;)

[@Nerdist]

Very kind, thank you! These weird question videos never do as well but I love thinking this way. -- KH

[@ZzX010]

The flash could actually take a selfie with the 1×10^-12 shutter speed due to being able to time travel. So he could hit the button, time travel to right before he hit the button and be in frame, then run with the photons to the camera and catch it with a perfectly, non-blurry selfie

[@kfrews]

He would not want to run straight to or back the camera, because those reflected photons would cause it to be blurry. He would need to run in an ecliptic path for best results cutting the distance slightly.

[@dorianeric]

Awesome video, but the Flash could go even further because of the lag the camera/phone processor has, still love the video

[@monsterv1995]

I only come to this video to leave a like before going to sleep so i can have a good dream.

[@Nerdist]

That's kinda sweet! And weird...but sweet! -- KH

[@monsterv1995]

Nerdist Because Science!

[@madmustang15]

I take hand free selfies all the time... it's called a Bluetooth remote lol

[@coffe2go]

I support this channel, probably the one of the best ones which helps you with science and math etc....

[@liamf134]

I love this series 😁

[@Nerdist]

Thanks Liam! -- KH

[@omairsmort]

The flash is faster than teleporting dude

[@syfarthewolf9139]

This. Thank you.

[@Grimreaper213w3]

I already knew this question yes.

[@TheDarkSaberGod]

This is the quality stuff I subbed for, more flash stuff

[@Ivanneedin]

I love ur hair its soooo opppppppppp

[@Nerdist]

It gets nerfed in Season 2 -- KH

[@Ivanneedin]

It won't be long now.

[@TheViewer_]

RedMellow *Puns?* Or double meanings?

[@Ivanneedin]

eyy u get it

[@ibrahimbardi418]

But isn't 18km is further than the horizon. So you can't see flash in the selfie because he's further than the horizon.

[@ahlpym]

Only if the terrain was flat. He could just find a place with a big enough hill.

[@Nerdist]

Yes, sorry for not mentioning this. -- KH

[@ibrahimbardi418]

Ok 👌. Thanks.

[@blalockj7788]

Taking selfies as you describe The Flash would just be a blur in these photos. In order to appear properly in these photos the Flash would have to move very little during most of the 1/8000th of a second that the camera's shutter is open. Another variable you are failing to account for is the delay between pressing the button that causes the shutter to open and the shutter actually opening. This time is referred to as shutter lag. Even on the fastest cameras used by sports photographers shutter lag is measured in milliseconds, not microseconds (by the way the symbol for microsecond is μs, not ms; the symbol for millisecond is ms). Luckily for The Flash, shutter lag actually makes taking a hands-free selfie much easier. Shutter lag varies quite a bit from camera to camera. Sony reports that the Sony Alpha SLT-A77 has a lower than average shutter lag of 50 milliseconds, and Independent reviewers at Imaging Resource measured the A77’s shutter lag at 53.5 milliseconds. For comparison, Imaging Resource clocked the shutter lag on the Konica Minolta Maxxum 7D at 117 milliseconds. With the A77 The Flash could trigger the shutter, spend 10 milliseconds carefully letting go of the camera without sending the camera flying (or superheating it with air friction) and still have 40 milliseconds to move 1 meter at an average speed of 25 m/s ~ 56 mph. When the camera’s shutter opens for 1/8000th of a second it will be falling at less than 0.5 m/s ~ 1.1 mph. The camera will fall less than a millimeter during the 1/8000th of a second the shutter is open, which means that The Flash needn’t worry about a blurry photo. Of course, for The Flash to maintain an average speed of 25 m/s over 40 milliseconds while minimizing acceleration and deceleration he would need to accelerate at 2500 m/s^2 to reach 50 m/s in 20 milliseconds and then decelerate at the same rate to stand still for the 1/8000th of a second that the camera’s shutter is open. Without the Speed Force The Flash would sustain a force of more than 255.1 g. That said, the human body has a much greater tolerance for horizontal (perpendicular to the upright spine) g-force. Indy Car driver Kenny Brack was seriously injured, but made a full recovery following a 2003 collision where he survived a reported g-force of 214 g.

[@jscotthatcher380]

he's faster than light, so im calling it: yes he can very easily.

[@GabieMaru04]

Kyle VS MattPatt? I guessing 10,000,000+ views and 1,000,000+ likes?

[@lydium2119]

ItsGabriel what about VSauce3

[@anthonyyoung342]

Omg yes

[@orestismataku4042]

more flash !!!!!!! please👏👏👏👏

[@TheViewer_]

orestis mataku I agree, more *Because Science!* on The Flash

[@orestismataku4042]

The Viewer i dont think marvel would allow it

[@garrettmp17]

orestis mataku yea do more

[@andreaaraldi7919]

I think that instead of the exposure time you should consider the input lag that occurs beetwen when the command to shoot the photo is given and when the camera begins to register it. If flash did what you said, he would appear only in the last "layer" of exposure, resulting into a super transparent and blurred figure.

[@shaunboothe7470]

Great episode my friend! You're the best!

[@alfredme3]

5:35 for if you want to know the answer to the question

[@MouDaTung]

Specking of DC, what would crime rate in the cities with in comics compared to a real world situation? Anyone care to do the statistics?

[@TheViewer_]

Methane Juice I would but I can't because Kyle could do it better.

[@adeptustacticus3112]

I know this is an old comment but likely Star city(from CW's Arrow) or Gotham, maybe even Central City

[@severablegibbon]

Adeptus Tacticus BATMAN

[@zeliumite]

I think videos like these are always hard because flash's top speed is always such a debatable thing.

[@rafas6134]

Well, but Flash will be on that photo partially transparent. In case of 18,6 km he will be exposure for so short time that he will be unnoticeable on photo. Basically we will see background through him. If shutter is 1/8000 and Flash will be exposure (stay camera front) for 1/4 on that time that mean he will be transparent in 1/4. But all above is more or less correct for analog camera (and for global shutter sensors). However shutter in iPhone is rolling shutter CMOS (as far as I know). So Flash will be disappearing (or appearing) on photo. If shutter rolling from top then probably his legs will be best visible and he will be more and more transparent when going up. Because science! Don't get me wrong I very very like that channel!!!

[@ironwoodkid9577]

i bet 1000$ his favourite superhero is the Flash

[@TheViewer_]

Iron Woodkid Nah, probably Thor

[@franky_521]

Iron Woodkid thor

[@FahimusAlimus]

Doubt it

[@Darkraddish]

that moment when I'm planning to reply about Thor but seen similar comments

[@TheViewer_]

Emilio Guevara Heh...

[@alexmiller4890]

You know that the flash is still faster then someone who has instantaneous teleportation to any corner of the multiverses. And yes it is a fact

[@syfarthewolf9139]

This. Thank you.

[@ethangarcia2706]

Which flash?

[@rendoc9662]

That was only due to specific conditions

[@tacobeeznut]

How so?

[@alexmiller4890]

Ethan Garcia the older show but it is still Canon but the video is talking more about the most rendition of the Flash

[@howrylo]

The flash is my fav. Can't wait to see how they portrait him in the movies

[@phantomofdeath]

How strong could The Hulk get before he risks destroying the planet just by moving?

[@MinybjuMC]

I'm calling rubbish on the last bit. There is no way a horizontal photo can be taken that would reach 18km. The only way this could be possible is if the flash were standing on a planet with at least a circumference of 598,750 km, or there is some altitude. If the latter, since the flash cant fly or run on thin air, he would have to travel further than 18km, to make up for the distance travelled in altitude. (not to mention the time it would take to stop running, and turn around to pose for the photo)

[@Nerdist]

Yeah, sorry for not mentioning this. Barry or whoever would have to be standing on top of something dozens of meters high, and therefore could only take a photo from 18+km - that vertical distance. -- KH

[@tizzlegaming8688]

the flash has actually run on thin air before and also in a vacuum, hes also capable of running way more than thousands of time the speed of light so he could do any of the selfies mentioned in this video.

[@maximotion262]

Healergirl2 he's run on air before do some research before you type

[@MinybjuMC]

JJ Johnson air doesn't have enough tension to run on, or can not cause enough friction to propel him forward. At best the flash could run on clouds. (Huhduh flash has been written to be able to run on air, you are wrong) he has also been written to run across the universe faster than instantaneous travel. With realistic settings the flash can't travel on air, just like we limited him to the speed of light for travel speed. Do your research first before commenting stupidly

[@89ludeawakening1]

There's no need to do research Healergirl2. You are destroying your entire argument when you're trying to use real world logic for Flash. In canonical material he has traveled thousands of times MFTL, so that's what you would go by. When you're referring to the Flash for anything, he should not be limited to light speed. He's a fictional character, so why ground him with real world physics?

[@clown6523421]

You chose this over how much electricity it would take to produce a chidori? It had over 800 likes, which it will probably get again

[@KIHarder]

As for the camera with the ridiculously fast shutter speed that could not capture him even at faster than light travel: he could get selfie if he could travel faster than light by standing in front of the camera, posing, and then running faster than light to take a picture of where he was before his photons reach the camera.

[@TobiNightcore]

But can't he also make himself appear in multiple places in the picture? Because that would make an even more epic selfie

[@kaymeachem1619]

Set the phone down with a timer and pose😂😂😂

[@TheKieran3760]

Dude he can run fast enough to make time freeze for him self, the flash and Superman both did it in a comic for the flash to try to talk Superman out of killing the Darksiders forces during one of his invasions

[@Thehydraw420]

4:27 "Light is fast." -Kyle Hill

[@anythinggoes2041]

Around 6:07- 6:10 I laughed, because my name is Kristan.

[@carter171721]

The real questions that need to be answered

[@tacobeeznut]

This series should have its own channel

[@asianniga]

the sonic boom would knock your friends away with all the stuff in the room including the camera.

[@thebatman5690]

I've watched you since the beginning... I think they're funny and very smart.... Just letting you know big fan wat you do... And keep it up

[@Mattipedersen]

Of course "The Flash" can take a Selfie... with the Camera on a Stand and while he's standing still. :P

[@MrChubbaca]

"i did it for u" aw so sweet :3

[@EionBlue]

You made Kristen cry! Thanks alot Kyle!

[@krissisk4163]

"Is the Flash fast enough to...." Yes. The Flash is fast enough to outrun teleportation from one end of the universe to the other (under special conditions granted, but still). So, basically, yes. The Flash is always fast enough.

[@richie6799]

I've got a new video idea for you about the flash, *"Is the flash bulletproof?"* When the flash is getting shot at he can move so fast that the bullets almost freeze in mid-air. so when he goes to catch/move the bullet, he has to move either at the same speed or faster. if he is moving as fast as the bullet and he goes to grab it, shouldn't the bullet go right through his hand? it would have the same impact as it would if the bullet was travelling directly at his hand so if he were to touch/grab the bullet, he would have to be bulletproof. another thing would be, how would he grab the bullets or anything if his suit is frictionless? I hope you explore this idea because I really want to see what you think. thanks for making these videos, I love them all. they just tickle my nerdish heart haha :D

[@lindipearson9633]

You are my absolute favorite KZbinr kyle!

[@ChocoboKid216]

Now only if Barry Allen could sell photos of himself for the newspapers.

[@thelonelykloud7435]

I was literally thinking about this just the other day. From that scene from The Flash

[@Woodledude]

The Flash absolutely can take a photo with that super-fast-exposure camera, and here's how: 1. Position the camera, do not hit the button. 2. Get into position and pose at super-speed. Hold pose for a few femtoseconds or so. 3. Return to the camera AQAP. 4. Time the button press so the photons from the desired pose are getting there right when the camera is exposing. 5. Check out your awesome photo.

[@noahztv1]

In one episode of the show he took a picture with his friends be running to them after pushing the button on the camera. But it kinda bothered me because the picture wasn't blurry

[@allynhamilton4836]

the dude cross the entire universe in a instant though so many times faster than light no camera could pick him up even one as impressive as 1 trill framerate

[@Iraklis735]

sometimes i forget what this show is about but then these kind of videos releas and then i know why i subbed

[@dralin350]

Flash would have to sit in the targeted area the whole time the shutter is open to be completely clear. Otherwise he'd be blurry or faded. Not sure of the delay from pressing the button, the focusing on object, to opening the shutter to begin collecting photons. He would have a hell of a hard time with ones that focus on objects in the distance and getting the device to activate it's shutter.

[@warshack378]

The flash has gone faster than instantaneous teleportation. Yes he can take a handless selfie.

[@richardlucier1889]

dude you sounded just like grant gustin when you said "ew i dont look good...delete it" that was amazing

[@alexpeck995]

Thanks to my AP physics class I actually knew the formulas he was using this time!

[@jacquenzeyimana6356]

I love ur editing

[@cupcakeawesomeness6324]

Not to mention the black holes he'd be opening from going so fast

[@AnonymousHamster]

Kyle is literally the only reason I'm subscribed to this channel XD

[@itsjoelskolrud]

Or you can put the camera on the timer and anyone can do it, lol Another awesome video Kyle!

[@pvanny]

The flash did take a hands free selfie in the flash tv show! And I've always thought he couldn't especially at the speed he was at at that point in his career

[@zacariasorellana2333]

i can take one too with somewher to put the phone against and the timer LoL

[@40watt53]

The Flash (in the comics) can outrun instantaneous teleportation from the edge of the universe, of course he could.

[@baburrasulov4142]

Kyle Hill with Michael Stevens need to do an episode of either BS or Vsauce!

[@whitherwhence]

At 18.6km the Earth's curviture gets you. He'd have to hold the camera 28m above sea level.

[@emsator]

He's faster than teleportation.... TELEPORTATION

[@manishrauthan1364]

awesome work...

[@OrionKaelinClips]

With longer distance selfies he could also run at a speed towards the camera where he appears multiple times in the same image, no photoshop needed!

[@ally20]

One tiny problem. If you limit flash to the speed of light then surely he would have to start ahead of the camera lens in order to get the 18km away before the light gets there. Starting behind the lens as seen at 5:08 would mean he would very briefly have to out run light in order to beat the photons to the destination.

[@JJizz23]

One thing you're not accounting for Kyle, a tripod

[@KoalaMeatPie]

The pictures would always be blurry as he passes by photons on his way to pose

[@PAPO1990]

You could easily get away with a slower shutter speed, I think even 1/1000 might be viable, the flash would have to stay still a little longer, but it could still work (or some other shutter speed between 1/1000 and 1/8000). Also worth considering from the Flash's speed of reference, there would be a noticeable delay between the shutter button being pressed and the shutter opening, giving him yet MORE time to be in the selfie, this would be a downright TRIVIAL thing for the flash, or even a reasonable Kryptonian to achieve.