The Reverse Pinhole Camera Effect

Рет қаралды 158,698

5 жыл бұрын

In this video I find haunted shadows in my house. First I find that the shadow to a ball forms a star, and then the letter J....how could this be happening? What is a reverse pinhole camera and how could it be effecting the shadows in my house?
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DISCLAIMER: Any experiment you try is at your own risk

Пікірлер: 649

@androk. 5 жыл бұрын

“I’m in my house playing with a ball”

@AxiomIndustries 5 жыл бұрын

As you do

@kaveentennakoon3080 5 жыл бұрын

😂😂😂😂😂😂😂😂😂

@zerlix.4878 5 жыл бұрын

Androk balls hurt

@codervicky 5 жыл бұрын

😆😆😆

@alangibling1942 5 жыл бұрын

M8.. ur childish

@johnbarron4843 5 жыл бұрын

*The action lab is actually inside Area 51*

@viruscreep75 5 жыл бұрын

Yeah thats make a lot of sense

@prodclippy 5 жыл бұрын

Whatch my resent vid. I am an area 51 hdg. I dont care if the other hdg chase me.

@EzeePosseTV 5 жыл бұрын

*Alienati confirmed!*

@tomfromamerica8042 5 жыл бұрын

This is why the military will shoot anyone trying to storm Area 51. They don't want you messing with The Action Lab. They may be recording at the time and no one, but no one gets to ruin a take. LOL

@EzeePosseTV 5 жыл бұрын

Lmaoooo! Tom Mole

@sovietbot6708 5 жыл бұрын

So basically, the j flips when it goes on the wall then flips again when it goes into our eyes then flips again when it goes into our brains.

@TheSign2020 5 жыл бұрын

It actually flipped before you flipped it so flipped stays flipping.

@kanishkshukla6510 5 жыл бұрын

damn, I can't do that many flips in real life. hell, I can't even do one.

@funkyflames7430 5 жыл бұрын

You can simplify this down by saying the flip of the eyes and the flip of the brain cancel. BTW, the flip is on all angles. Everything is flipped on every angle.

@TheCommanderNZ 5 жыл бұрын

Back and forth back and forth back and forth.

@J0MG_ 5 жыл бұрын

So, everything is actually upside-down but our brain flips it and then we see it correctly??!

@OmarTheAtheistAziz 5 жыл бұрын

lol thumbnail "HELP ME" he knows how to do clickbaits, without lying

@ftlflmtld192 5 жыл бұрын

A gun that kills by *SCIENCE*

@samrowe2889 4 жыл бұрын

He got me too I sat here for five minutes wanting to see if I'd click on the video I did and unfortunately I still dont understand the pin hole camara

@youravghuman5231 4 жыл бұрын

Soo, i guess the "help me" word is make like that j cut

@holyloli69420 5 жыл бұрын

Plot twist: There actually a real ghost helping him

@sobananas7 4 жыл бұрын

OOF

@jc_boy4718 4 жыл бұрын

Paid ghost actor*

@aksa3227 4 жыл бұрын

oof, creepy

@DuncanCunningham 5 жыл бұрын

Yeah, I recall the eclipse in Salt Lake City. I walked to get lunch at the time and all the shadows under the trees had little eclipses for each leaf. Very interesting.

@benjaminfgates 5 жыл бұрын

Uranio 84 yep!

@jessi_da_tucan8187 5 жыл бұрын

Wowie bet that was an experience

@ChristopherMoom 5 жыл бұрын

Haunted shadows? Looks like you're in the shadow realm.

@TechSupportDave 5 жыл бұрын

Shadow warrior reference? I can never tell what people refer to when the talk about the "Shadow realm". First thing that comes to my mind is the classic action shooting game "Shadow warrior".

@infy_1 5 жыл бұрын

@@TechSupportDave hmmm Jackie chan

@sackboy1665 5 жыл бұрын

What the

@abcdeass7876 4 жыл бұрын

Chara

@woomylover2006 4 жыл бұрын

The shadow realm is from Yu-gi-oh

@ludwigvonkoopa2156 5 жыл бұрын

"So I am in my house playing with my ball" *Yes okay I am out*

@nisharanidas6651 5 жыл бұрын

That's my sleep paralysis demon how the freak did you get his number

@id104335409 5 жыл бұрын

Are there no boundaries to what this man can do? Who can predict what he will show us next?

@abysswalker2403 5 жыл бұрын

maybe he will show us why EVERYTHING IN THE SOLAR SYSTEM ORBITS THE SUN CLOCKWISE

@funkyflames7430 5 жыл бұрын

@@abysswalker2403 Or counterclockwise

@abysswalker2403 5 жыл бұрын

@@funkyflames7430 its one of those but its always in the same direction

@gabor6259 5 жыл бұрын

_He is inevitable._

@ScientificReview 5 жыл бұрын

Quantum entanglement

@galaxyofreesesking2124 5 жыл бұрын

What I expected from the intro: "Hey everybody... I was experimenting with chemicals at 3 am, and..."

@zellty423 5 жыл бұрын

Action lab would destroy the U.S. military with facts

@jessi_da_tucan8187 5 жыл бұрын

zellty I agree with all of my brain x3

@imoof7388 4 жыл бұрын

Yes and yes he will decstory u.s

@mutestingray 3 жыл бұрын

Perhaps even some logic? 😳

@baze3541 5 жыл бұрын

You explain so much better than Veritasium😂

@ayush2977 3 жыл бұрын

That was rude ! But true ! 😂

@icyhot8167 5 жыл бұрын

I have been watching your videos for more than a year now and u never cease to amaze me and teach me new things.... Keep up the good work man 👍👍

@joandy2749 5 жыл бұрын

Man, your experiments are out of this world... Keep doing those good videos.🤘

@sethmueller9676 5 жыл бұрын

The same thing happened with me during The half solar eclipse at my school. The shadows of the leaves on trees were shaped as a crescent moon and the shadow of my body was curved

@AstroPC96 5 жыл бұрын

You are one of the very few youtubers that has the ability to blow my mind every episode!!

@abdhulhackul2620 5 жыл бұрын

No one: The action lab: "so here's the shadow of my ball you can see it's a sphere and right against the wall" 0:53

@subscriberswithoutanyvid-lx1cw 5 жыл бұрын

Lol

@pi6141 5 жыл бұрын

wouldve been funny without that "no one" tho.

@Boopitypoop 5 жыл бұрын

If we would have 5 light sources next to each other and every one of them would have different letters, then it would be possible to literally write something on the wall with shadows just by holding a ball in front of it? Or is is only works with one light source (aka. only one letter is possible)?

@nguyenkhanhhailinh1721 5 жыл бұрын

I don't think that would work, because all 5 of the light sources would be pointing at the same object, i.e the ball, therefore, the light beams coming from different angles would meet, making the shadow blurry and almost impossible to read It may work if you have 5 different light sources evenly spaced out a bit so the light don't meet, pointing straight at the same large backdrop and you have 5 different balls hanging in front of them

@bhavyamehta2336 5 жыл бұрын

It kinda works but they would overlap quite a bit. I can say this because I have tried this but with different colours of light instead of different shapes.

@Tarun546 5 жыл бұрын

Or you could just make the light source in the shape of entire words. There, problem solved.

@hendrikm9569 5 жыл бұрын

@@Tarun546 But if you do this that way, you essentially have different light sources, because of the Huygenssche principle, don't you?

@Tarun546 5 жыл бұрын

@@hendrikm9569 Hmm possibly, but isn't that true of even a single large light source, like the upside-down J shown here? Either way, it'll be a cool experiment to try out multiple letters.

@adivaidu252 5 жыл бұрын

U deserve more subs ...love ur vids Keep up the great work

@cryosende 5 жыл бұрын

Have a great day everybody!

@siebevandekerkhove9863 5 жыл бұрын

You too

@theunknownguy265 5 жыл бұрын

Are you still alive

@erry9895 5 жыл бұрын

Whilst watching the intro, it reminded me of a sensation I remembered from the light after a solar eclipse shining through the leaves on a tree from about 20 years ago. Then you made the connection, and then validated and explained it to me. 20 year long mystery explained. Cheers bro!!

@Levi587 5 жыл бұрын

This is cool. Nice vid man!!

@alfredo96mg 4 жыл бұрын

seriously I love this channel it is so interesting every single time, great job 👏🏼👏🏼👏🏼❤️

@milo5oup 5 жыл бұрын

this man never ceases to surprise me and teach me cool things while being my whole mood the entire time (see: I'm in my house playing with this ball on a string)

@lifeofphyraprun7601 5 жыл бұрын

Seriously dude,when u showed the star and the J back to back,I really thought that it was a cross.And I know many other ppl saw it the same way!Awesome experiment!

@khusenpradhan3386 2 жыл бұрын

The action lab can solve complex mistries with as much as simple explanation... Salute sir

@PAhmad99 5 жыл бұрын

What if you made a doughnut shaped light source?

@parth2854 5 жыл бұрын

would get a doughnut shadow

@PAhmad99 5 жыл бұрын

@@parth2854 0____0 OH MY GOOOOOOOD

@schmarcel4238 5 жыл бұрын

Hbot- -42 ok ok. But what if you made a triangle shaped light?

@YYYValentine 5 жыл бұрын

The center of your paper will fall down

@ScientificReview 5 жыл бұрын

You will get a white hole.

@En__En 5 жыл бұрын

Looks like a great idea for kids' science fest! Thank you for the inspiration 😁

@jimpearson9292 5 жыл бұрын

Ha ha ha. Amazing, my theory of why it was happening was so wildly inaccurate!

@TottyRops 5 жыл бұрын

It's interesting what you said about our brain flips/reverses the image formed on our retina. My brother was in the Navy and took part in an experiment that had them wearing glasses that flipped their vision upside-down. He said it was weird as after a day or so, their brains compensated and everything flipped back to normal.

@TheActionLab 5 жыл бұрын

Yes, so to say the brain flips it is basically just saying that we are used to it

@TottyRops 5 жыл бұрын

@@TheActionLab My hypothesis is that the brain builds new neural pathways in order to correct the visual distortion. He also said that they were not allowed to wear the glasses for long as it would be harder to revert back afterwards.

@saurabhstrauss 5 жыл бұрын

Really basic things we all might have studied.. but the way you use them is just extraordinary. 😁😍

@muhammadijaz5268 5 жыл бұрын

This guy always have something intriguing. Thnx for such awesome vids!

@nope7391 5 жыл бұрын

...”so here’s the shadow of my ball”

@subscriberswithoutanyvid-lx1cw 5 жыл бұрын

Lol

@MammaOVlogs 5 жыл бұрын

wow way to go JJ loved it, mystery solved

@blazedgamingkr1438 5 жыл бұрын

That was actually really cool. Something I didn't know. And when it comes to basic science, finding something i, at least, never heard of is very difficult. Really enjoyed this one action lab. Next solar eclipse you should use the reverse pinhole camera to do the sun. I mean you still have that giant shiny ball you could use right?

@mounerrefat7863 5 жыл бұрын

Amazing video man 🤩 Got my mind blown👏

@rohan6579 5 жыл бұрын

the way you explained it is soo great sir.one can learn a lot of science through your videos. and they are kinda cool to watch.

@s.vidhyardhsingh3881 5 жыл бұрын

Superb man!!!! Something new!!

@kritazya4571 5 жыл бұрын

Wow man crazy....I love the way you think

@guhansaravanan8437 5 жыл бұрын

Honestly Intresting,Welll done

@nerdexproject 5 жыл бұрын

I had no clue about this effect! Wow! :0

@itsberzerk9279 5 жыл бұрын

Yay new video

@kibi8999 2 ай бұрын

The rays of the sun are all parallel for our line of sights. The reason why we see the patterns from eclipses is because of the wave interference of the light rays, double slit experiment explains that but basically even if you sent one ray at a time you'd get interference and the distribution of the copies of light projections are equal to the wave pattern. And also it's the lens that turns the image upside down for our eyes and camera obscura only inverts without a lens if a) the object is bigger than the pinhole for the perspective, and b) the rays are diffuse so that they project based on the available angle to the surface (as shown in the diagram in the video).

@RareAquaria 5 жыл бұрын

So, you're saying... *everything I look at is really upside-down?!?* Cos I definitely don't have a brain to flip the image the right side up

@PADARM 5 жыл бұрын

I like the way your brain works. Always very interesting videos

@srpenguinbr 5 жыл бұрын

Amazing! This explains one of the methods I used in order to see the eclipse (which was a partial one here) I took a sheet of paper and cut a circular hole in it, about the size of a coin, put the paper on a mirror and positioned it ia way that made solar light be reflected to my wall. What I was doing was basically a pin hole camera

@goku44ssj62 5 жыл бұрын

And I am a little curious about 'Quantum Entanglement' can u make a video on it ?

@gamingcookiereal 5 жыл бұрын

as einstein called it, spooky action at a distance

@NoName-nj6ey 5 жыл бұрын

That's so cool!

@pegnas 5 жыл бұрын

Fantastic!

@TheJulianoL 5 жыл бұрын

Nice optics topic!

@yousefbaghlaf6713 5 жыл бұрын

Now that's some cool stuff

@ramakrishnagudivada2666 2 жыл бұрын

Fantastic phenomenon

@Violet_wave 5 жыл бұрын

Pin hole is a simple concept but puting like this it is really cool.

@hudy3218 5 жыл бұрын

Thanks cool video scary one.

@maniac6518 5 жыл бұрын

There are some magnetic stuff that actually fly(because there are magnets over and below that stuff). Can you please try to spin that stuff forever inside the vacuum chamber? Because it’s not connected to anything(only flying because of the magnets) and if there’s no air it should spin forever. Please like it so that he sees it.

@anshum1675 4 жыл бұрын

There already is a video about exactly that.

@maniac6518 4 жыл бұрын

Archana Motagi ok, thanks 🙏 but what’s its title?

@mariuszkaszuba3514 5 жыл бұрын

Cool experiments

@dominicsurette2890 5 жыл бұрын

Action lab: something is trying to communicate with me Me: this some buuuulllllllllllllshit right here

@coffeejohnny2337 5 жыл бұрын

Me: It’s science

@cattocs 4 жыл бұрын

Flat earther: of course it's all bullshit. Look at that pinhole diagram, ew.

@mausamkhetani8661 5 жыл бұрын

With all due respect to veritasium and destin and kursgesagt.......i think you are the best KZfaqr..... your dedication and creativity is unmatched.......

@rezakharismawan 5 жыл бұрын

Hey, would you try to fold orange skins in front of fire, i wonder why that was flameable? That gas also melt plastic too! And become like spidersilk also.

@dyscea 5 жыл бұрын

Watched an ep of Veritaserum about why all diff shaped holes still created round shapes on a wall. So I knew what was going on. I felt so smart :D

@ayush2977 3 жыл бұрын

You could have chosen a happy background song......The effect is already haunting enough !

@tusharrane720 3 жыл бұрын

I want to tell you boss, you are awesome 👍

@anandpreetsingh6262 5 жыл бұрын

Notification squad here!!!

@TechSupportDave 5 жыл бұрын

yup. same. but i get mine 9 hours late.

@flatbreadsub 5 жыл бұрын

Once again he shows really cool things that a lot of us never even heard of and thought was impossible, really cool video.

@yasyasmarangoz3577 5 жыл бұрын

How can you think that something is impossible, if you never heard of it?

@TechSupportDave 5 жыл бұрын

@@yasyasmarangoz3577 you know what he meant.

@yasyasmarangoz3577 5 жыл бұрын

@@TechSupportDave Yes I know :D

@vadrif-draco 5 жыл бұрын

This was a pretty good video.

@alfredxsiv 5 жыл бұрын

I kinda knew what the trick was. I remember playing with a magnifying glass while using our living room's donut shaped light bulb (🚫) as the light source. I was astonished as a kid when i tried to focus the light with the magnifying glass, the shape of the light bulb appeared.

@ironheart1923 5 жыл бұрын

Yep. He's bullshitting lol

@TheJayWay101 2 жыл бұрын

@@ironheart1923 How's he bullshitting? He explained basically this

@jaganpilla9145 5 жыл бұрын

Ur are amazing man

@phuzo3320 5 жыл бұрын

I love u action lab......

@jt12blk 5 жыл бұрын

It works with colors as well; try different shaped color cutouts.

@jintzie1950jth 5 жыл бұрын

Cool!

@martinmespiespinosa7218 5 жыл бұрын

Now we're gonna call Ghostbusters... Nice effect.

@supermancreations7588 4 жыл бұрын

0:52 "here is the shadow of my ball" Imagine he has 2 "J "

@JustARegularEverydayNormalGuy 4 жыл бұрын

😂🤣

@FedericoSpada13 5 жыл бұрын

Can't you get the same result with multiple light sources placed in a J form? If you have a square of little LED lights you can illuminate them to form any shape you want, right?

@meyes1098 5 жыл бұрын

You should have saved up this video for Halloween :D

@theCidisIn 5 жыл бұрын

I did that during the eclipse too, except I put a small hole in a paper over another paper. It really surprised my grandma that it worked.

@theCidisIn 5 жыл бұрын

Surprisingly, it works incredibly accurately. You can see the body take over the source of light very clearly. Almost as if it's a one page flip book, or a video on a piece of paper. It's a great method to use if you don't have the special glasses. Actually, I'd recommend it even if you do have the glasses because it's just so neat. I heard how to do it from NPR.

@abdulmuheet1596 5 жыл бұрын

First time in my life i hear reverse pin hole😍😍😍. That was amazing🤗😉

@Samjkf 5 жыл бұрын

Action lab should do a video on the speed of shadows.

@lilpea8749 5 жыл бұрын

Oh i didnt know that i was early \:

@noahway13 2 жыл бұрын

I have blurry long distance vision. If I make a fist with a small hole at the far end, and look thru it like a monocular, if I get it just right, I can see across the room with clear vision. Why?

@jensphiliphohmann1876 5 жыл бұрын

Instead of saying "it flips the image upside down and also mirrors it" you could just say "it π-rotates it" or "it 180°-rotates it".

@ansarlala2069 5 жыл бұрын

You mean π radians rotates it

@jensphiliphohmann1876 5 жыл бұрын

@@ansarlala2069 Of course. However, 'radian' is quite an auxiliary unit.

@RoboticusMusic 10 ай бұрын

Is this how a laser works if you put the light in a box of mirrors and the box has a pinhole in it? Do the waves line up a bit, a lot, or not at all?

@ballimations3973 4 жыл бұрын

playing with your cat in the basement with a choking hazard metal ball. SOUNDS GOOD!

@Showtime5285 3 жыл бұрын

so when is the third box?

@fabianaguilar2502 5 жыл бұрын

Hey can you magnify a shadow !? Do an episode on this please !!!

@rajfatehpuriya2059 5 жыл бұрын

great.... that's all i say. you doing great.

@acoelho001973 5 жыл бұрын

If you could float a good size boat in a pool. Does the boat add to the weight of the water or does the water stay the same weight?

@josebarria3233 5 жыл бұрын

When you mentioned Solar eclipses something went through my mind.. I saw the lastest solar eclipse here on Chile but something else caught my attention, instead of looking st the sky I was looking at the ground for something called Shadow Bands, they are like a turbulence noise shadow, that was kinda weird but immediately I thought about collimated light and interference. Btw you should make a video about that, have a great day

@chaos_omega_zero 4 жыл бұрын

Its like what happen during partial solar eclipse. The shadow cast for example by leaves is crescent shape.

@dhadelmacha3455 5 жыл бұрын

Awesome

@lucienberl 5 жыл бұрын

I was thinking it was a element of the double slit , or photo electric effect experiments.

@bushater69 3 жыл бұрын

Awesome video once again! Could you please do an experiment demonstrating how during a solar eclipse the moon casts a smaller shadow then its actual size. I cannot figure out how to replicate this. :(

@harishs7384 5 жыл бұрын

Action lab rocks

@tohtorrent 5 жыл бұрын

How many letters can you write this way?

@ygaming1379 5 жыл бұрын

Can you make a video about if there is delay with mirrors

@hbrouib6086 2 жыл бұрын

Thank you very much. I just got a scary stake for my novel

@mrbilal1987 5 жыл бұрын

5:03 lol @ "those light rays from the top of the boon..."

@ogrekogrek 5 жыл бұрын

amazing

@heroclix0rz 5 жыл бұрын

What if your ball is in the shape of a J/star. At what point does it flip or morph into the other shape?

@tomfromamerica8042 5 жыл бұрын

That would have been cool is if he used an object shaped like one letter to cast the shadow of another letter. When the object was close to the wall, it would make a shadow of the object and when it was pulled back it would morph into the shape of the light source. Perhaps you could try this at home and make a few measurements along the way. I'll be the math behind all this would be very interesting indeed!