The Reverse Pinhole Camera Effect
ฝัง
- เผยแพร่เมื่อ 19 ก.ค. 2019
- 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?
Get your Action Lab Box Now! www.theactionlab.com/
Get the Action Lab experiment book here
Amazon: amzn.to/2Wf07x1
Barnes and Noble: bit.ly/2HPmmA9
Follow me on Twitter: / theactionlabman
Facebook: / theactionlabrat
Instagram: / therealactionlab
My Other Channel:
/ @actionlabshorts
For more awesome videos checkout:
Darker Than Vantablack-Absorbs 99.9923% of Light
• Darker Than Vantablack...
Amazing experiment actually makes black fire
• Amazing Experiment Act...
How I Made an Ant Think It Was Dead-The Zombie Ant Experiment
• How I Made an Ant Thin...
Can Light be Black? Mind-Blowing Dark Light Experiments!
• Can Light be Black? Mi...
Mirror-Polished Japanese Foil Ball Challenge Crushed in a Hydraulic Press-What's Inside?
• Mirror-Polished Japane...
What if You Try To Lift a Negative Mass? Mind-Blowing Physical Impossibility!
• What if You Try To Lif...
What Does a Giant Monster Neodymium Magnet do to a Mouse?
• What Does a Giant Mons...
The Worlds Blackest Black vs The Worlds Brightest Flashlight (32,000 lumen)-Which Will Win?
• The Worlds Blackest Bl...
How Much Weight Can a Fly Actually Lift? Experiment-I Lassoed a Fly!
• How Much Weight Can a ...
DISCLAIMER: Any experiment you try is at your own risk - บันเทิง
![แฟนแนวใด๋ - ยูริ โตเกียวมิวสิค [OFFICIAL MUSIC VIDEO ]](http://i.ytimg.com/vi/4_XVMuhhbsU/mqdefault.jpg)
“I’m in my house playing with a ball”
As you do
😂😂😂😂😂😂😂😂😂
Androk balls hurt
😆😆😆
M8.. ur childish
*The action lab is actually inside Area 51*
Yeah thats make a lot of sense
Whatch my resent vid. I am an area 51 hdg. I dont care if the other hdg chase me.
*Alienati confirmed!*
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
Lmaoooo! Tom Mole
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.
It actually flipped before you flipped it so flipped stays flipping.
damn, I can't do that many flips in real life. hell, I can't even do one.
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.
Back and forth back and forth back and forth.
So, everything is actually upside-down but our brain flips it and then we see it correctly??!
Plot twist:
There actually a real ghost helping him
OOF
Paid ghost actor*
oof, creepy
lol thumbnail "HELP ME" he knows how to do clickbaits, without lying
A gun that kills by *SCIENCE*
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
Soo, i guess the "help me" word is make like that j cut
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.
Uranio 84 yep!
Wowie bet that was an experience
Haunted shadows? Looks like you're in the shadow realm.
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".
@@TechSupportDave hmmm Jackie chan
What the
Chara
The shadow realm is from Yu-gi-oh
That's my sleep paralysis demon how the freak did you get his number
Are there no boundaries to what this man can do?
Who can predict what he will show us next?
maybe he will show us why EVERYTHING IN THE SOLAR SYSTEM ORBITS THE SUN CLOCKWISE
@@abysswalker2403 Or counterclockwise
@@funkyflames7430 its one of those but its always in the same direction
_He is inevitable._
Quantum entanglement
"So I am in my house playing with my ball"
*Yes okay I am out*
You explain so much better than Veritasium😂
That was rude ! But true ! 😂
What I expected from the intro: "Hey everybody... I was experimenting with chemicals at 3 am, and..."
Action lab would destroy the U.S. military with facts
zellty I agree with all of my brain x3
Yes and yes he will decstory u.s
Perhaps even some logic? 😳
Man, your experiments are out of this world...
Keep doing those good videos.🤘
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 👍👍
You are one of the very few youtubers that has the ability to blow my mind every episode!!
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
U deserve more subs ...love ur vids
Keep up the great work
seriously I love this channel it is so interesting every single time, great job 👏🏼👏🏼👏🏼❤️
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!
The action lab can solve complex mistries with as much as simple explanation... Salute sir
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!!
This is cool. Nice vid man!!
...”so here’s the shadow of my ball”
Lol
This guy always have something intriguing. Thnx for such awesome vids!
Have a great day everybody!
You too
Are you still alive
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)
Looks like a great idea for kids' science fest! Thank you for the inspiration 😁
Amazing video man 🤩
Got my mind blown👏
Wow man crazy....I love the way you think
Superb man!!!! Something new!!
Really basic things we all might have studied.. but the way you use them is just extraordinary. 😁😍
You could have chosen a happy background song......The effect is already haunting enough !
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).
Fantastic!
Honestly Intresting,Welll done
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?
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
Lol
wouldve been funny without that "no one" tho.
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
Nice optics topic!
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.
Fantastic phenomenon
wow way to go JJ loved it, mystery solved
Now that's some cool stuff
I had no clue about this effect! Wow! :0
That's so cool!
I like the way your brain works. Always very interesting videos
Ha ha ha. Amazing, my theory of why it was happening was so wildly inaccurate!
Cool experiments
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)?
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
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.
Or you could just make the light source in the shape of entire words. There, problem solved.
@@Tarun546 But if you do this that way, you essentially have different light sources, because of the Huygenssche principle, don't you?
@@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.
Yay new video
Cool!
Pin hole is a simple concept but puting like this it is really cool.
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.
Yes, so to say the brain flips it is basically just saying that we are used to it
@@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.
What if you made a doughnut shaped light source?
would get a doughnut shadow
@@parth2854
0____0
OH MY GOOOOOOOD
Hbot- -42 ok ok. But what if you made a triangle shaped light?
The center of your paper will fall down
You will get a white hole.
I want to tell you boss, you are awesome 👍
Thanks cool video scary one.
Awesome
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
Now we're gonna call Ghostbusters...
Nice effect.
Once again he shows really cool things that a lot of us never even heard of and thought was impossible, really cool video.
How can you think that something is impossible,
if you never heard of it?
@@yasyasmarangoz3577 you know what he meant.
@@TechSupportDave Yes I know :D
Ur are amazing man
amazing
With all due respect to veritasium and destin and kursgesagt.......i think you are the best TH-camr..... your dedication and creativity is unmatched.......
good job sir
Action lab should do a video on the speed of shadows.
Action lab rocks
"so I'm in my house playing with this ball on a string"
What an opening.
5:03 lol @ "those light rays from the top of the boon..."
First time in my life i hear reverse pin hole😍😍😍. That was amazing🤗😉
Very clever
This man is doing great....
This was a pretty good video.
I love u action lab......
Crazy how nature does that
great.... that's all i say. you doing great.
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".
You mean π radians rotates it
@@ansarlala2069 Of course. However, 'radian' is quite an auxiliary unit.
You should have saved up this video for Halloween :D
Dude you’re a genius.
playing with your cat in the basement with a choking hazard metal ball. SOUNDS GOOD!
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.
There already is a video about exactly that.
Archana Motagi ok, thanks 🙏 but what’s its title?
I had to watch this 3 times before I could figure out what was happening
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.
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.
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
A few years ago, I had the chance to light a short film to be shot in the style of movies in the 1910s & 20s. We shot black and white film with a hand-wound 35mm Mitchell camera and were careful to use only early practical, non-computer generated effects. One scene had two elderly farmers walking back from their field holding a tiny moon fairy in their hands. Yes, moon fairy, but let's move on.
We lit the farmers by hiding a lightbulb in the box they were carrying, as you might guess. But to generate the stars in the background we tool a large 20x20 black overhead cloth on a tubular frame, and stuck lot's of tiny discs of foil all over it.
Using a technique I had read about, we opened the lens up to the widest f-stop, and placed a little 5 pointed star cutout in front of the lens. The focus was on the guy's faces in closeup, so the background dots, out of focus appeared as little 5 point stars! It was a subtle, yet really cool effect that added much to the final film. If you want to see it, visit en.wikipedia.org/wiki/Claire_(2001_film).
Watching this before bedtime
Thank you very much. I just got a scary stake for my novel
It works with colors as well; try different shaped color cutouts.
Hey can you magnify a shadow !? Do an episode on this please !!!
You should create reverse pinhole cameras all the way down a hallway so that as you walk down the hall, the shadow of the ball changes into different letters. That would seem even more haunted.
Ok, that was pretty cool. I did not know about the reverse pin-hole camera effect. Is this effect used for anything? Thanks for making this video!
Like this logo better for sure!
When shadows start turning into pentagrams, call your local preist.
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
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. :(
Holy crapola why has no reporter or astronomer getting interviewed during an eclipse ever explained that eclipse shadow trick. Really cool. I don't know if those victorian seance folk knew about this trick, but if they did it would have been the perfect thing to accompany ouija boards and levitating furniture.
Notification squad here!!!
yup. same. but i get mine 9 hours late.
I knew immediately what is going on despite the name of the video. I didn't look at the name of the video right off the bat, i usually look at the thumbnail first
This guy is seeing stars and J's instead of round shadows but can't help smiling. 😂😂🤣🤣😅😅😆😆
0:52 "here is the shadow of my ball"
Imagine he has 2 "J "
😂🤣