Levitating Waters
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- čas přidán 13. 09. 2024
- This recent toy is an amazing optical illusion. It is apparently based on a display piece housed in several Science Museums around the world costing many millions of dollars.
Descending droplets of water appear to defy gravity. Perfect water droplets can be suspended in mid-air within the backlit display box and then made to magically rise upwards. Impossible to describe - seeing is believing. No wires, no tubes.
How does it work? Well the device produces a steady stream of water droplets, falling under gravity. Just inside the frame of the box is a series of strobe lights, and if these flash exactly in time with the falling drops, then the droplets appear to be stationary. A small adjustment of the strobe timing can make the drops appear to be moving up or down. Magic!
Levitating Water (from the Nile)
Water from the Nile..... Water from the Nile........ Nile Water........ Water from the Nile...... *Water. From. The. Nile.*
Just got reminded of this from someone replying to my comment from a year ago. I'm glad to still see it's still alive. lmao
@@paint464 wtf
@@bait5257 its from another video of tim
Ohhhhhh no…
Not that… anything but-
Water from the Nile
Water from the Nile
*Water from the Nile*
*WATER FROM THE NILE*
that is legitimately one of the coolest things i have ever seen in my life.
it's called cymatics
@@theswapnilsaste x ncn x j b x b xxx b vU z hbdbsbhdhsbxhbdhxbdbdgdbdbbdbdbbdbdbbfbcbbcbbcbcbcbcbcbxbbxbcbcb cbcnnvbcnvz b fcbxhfn j xhbcbbhcbcbbccbbchbchhchchffhfhdhdbdbxbcbcb
The original was called the "Edgerton Piddler," invented by Dr. H. Edgerton of MIT (the inventor of strobe photography.) We had one at MOS Boston, and I've built them for others.
They're much cheaper if using home-built electronics and LED backlight panel rather than an expensive strobe instrument. The secret is to use a Gorman-Rupp oscillating chemical pump, the kind that looks like a metal cylinder suspended by four springs, and uses a separate diode. They're a bit pricy, but perhaps an espresso machine replacement pump would work the same. When a hose-clamp is adjusted just right, this type of pump puts out blobs of water at exactly 60Hz. Then you flash your LED strobe at slightly faster or slower rate. Another Edgerton trick: use violet "UV" LEDs for the strobe, a black background, and put fluorescein dye in the water (squeeze out a yellow-green hi-lighter.)
Oh, two other things: let the droplets crash into a lightbulb or xmas ornament. They make beautiful crown-splashes, same as hitting a fingertip. The sphere lets the water flow away, so the next droplet hits the bare surface and not a builtup layer of water.
Also, with lots of adjustment you can have a "T" connector and two streams of droplets. Aim them so they collide, and they form little dinnerplates of water with a ring of droplets around the edge.
Weird strobelight experience: firetrucks at a neighbors at night. Big vechicle strobelights. It was raining. During each flash HUGE 3D ARRAY OF PERFECT CRYSTAL SPHERES HANGING IN SPACE! Raindrops are little glass balls, no trailing points like in childrens textbooks.
2edgerton4me
wbeaty lol its almost like frequent lightning effect
This is amazing.
wbeaty Weird strobelight experience: firetrucks at a neighbors at night. Big vechicle strobelights. It was raining. During each flash HUGE 3D ARRAY OF PERFECT CRYSTAL SPHERES HANGING IN SPACE! Raindrops are little glass balls, no trailing points like in childrens textbooks.................Hey like yeah, Man. I smoked some of that stuff too..............and..............yeah. Next time the Feds come round to bust the neighbours, and it's raining - I'm gonna spark up a MASSIVE Doobie ;-)
I have seen this done in a different way when studying physics. They put a detector in the path of the falling drops, and the detector would send a signal whenever a drop goes through. And that signal would drive the strobe light. So no matter what you do, one drop appears to stay stationary between the two halves of the detector, and you could play around with the flow rate.
Its not that expensive to build, whats special is that it makes nice round droplets that fall down at very constant speed. Then you just choose a constant frequency for the strobe light to match it.
Actually this experiment is used to illustrate and confirm gravity: since all the drops are standing still, you can measure the distance between the drops. the distances get larger as you go down and the drops are moving faster. That is why i have seen it in a physics lecture. We mathematically derived the acceleration due to gravity out of the distances between the drops. We used this "illusion" so that it would be easy to study the motion of the drops, strobe light is often used in physics for such purposes. A crude example: when something is spinning 100 times per second and you only see a blur and you want to see what it is, use strobe light at 100 Hz, and now its visible. Or when you send a shockwave into a material, and something interesting happens 300 nanoseconds later, but you cannot really see what happens because its too damn fast. So you hit that material with 10000 shockwaves per second, and illuminate it with 10000 laser pulses per second, and now you just need to get the timing right and you can take a picture that will be highly resolved in time.
So, what you're saying, it's an optical illusion?
@@Sivos909 basically. The motion is continuous, just chopped up using strobe light. Its dark most of the time.
If you pause the video, the droplets don't move at all.
You mean repeatedly by the holding the space bar? Or are you using Pinkie logic?
(\
TheeldergamersAdam Um, Yes :D and NO
Pinkie Pie i love ponies
What if you are watching on iPad???
Joseph Atari PC
EDIT: The original top comment was archived and removed by author.
The original comment received 10% of the likes that the video got.
But the video itself only received 1.2% likes from all the views.
It's evident that the comment section sometimes offers viewers a better experience than the video itself, so why are commenter's NOT paid on youtube?
Why have other video sites figured out to pay commenters but youtube hasn't?
Lol
Why do you have a ceiling fan in your bathroom?
So that's where the saying comes from!
Lord Poop-Head So you don't get sweaty when you squeeze a hard one.
Lord Poop-Head It exhausts the stench and the humidity from shower. All modern homes have a ceiling fan in the bathroom.
What an interesting piece. Thanks for sharing Tim.
It's water from the Nile
nice reference :)
+Aaron james I keep seeing this coment, what does it mean?
Le_Cooper Its a reference to one of Tim's earlier videos where he pours water from a vase that never seems to end. And all he says is that its "water from the Nile" and never explains it... Heh...
indeed
+Aaron james
It's water from the eliN
From other comments, it looks like some people don't know what's going on here. It is a stroboscopic effect; the sound is incidental. There is a series of water droplets flowing down due to gravity. The strobe light flashes on and off very quickly, and you only see the droplets when the light is on. By adjusting the frequency of flashes of light, you can make the drops freeze, move up, or move down.
Here's a video where they break the illusion: /watch?v=oqUNd5wPGbU
actually the sound is not coincidental, its the rhythm of the water pump, and in this setup (only this setup, there are other ways to do this) this actually determines the formation of the drop. one stroke of the pump releases one nice big round drop.
but you are correct about everything else, it is just a coincidence that in this specific setup the sound actually reveals something, you can derive the frequency from that. sounds like something around 30-35 hz to me.
Just a clarification for some that may take what you said literally. By adjusting the frequency of flashes light, you can make the drops "APPEAR" to freeze, or move up. They are of course always moving down no mater what what they appear to be doing. The slight simply gives you the illusion that they are either freezing or moving up or allows you to see them as they are, moving down. And, as mentioned in the video, you can adjust the speed the drops appear to move at by adjusting the speed of the strobe light.
Oh damn my bad,. didn't know it was gravity pulling em down
I clicked on this not caring about the actual piece at all, just knowing that the top comment would be "water from the Nile"
thank you
Not enough Tim in this video.
Also not enough Tim Tams
I don't believe the explanation. I think this is some sort of sorcery performed by Tim in an attempt to make us go mad with fear over his new ability to conquer mankind. He will start out showing us small trivial things like water being stationary and then he will move on to levitating cars with people in them and encapsulating the earth in a forcefield that moves ever so slightly towards the center until the earth is squished to the size of a peanut. And then he will win.
He cannot show us his cool "perpetual mobile" toy, because it also gives individuals the ability to melt planetary crusts, vaporize gas giants, crush stars, blow out galaxies as if they were dandilion puffs, or just write ads for pepsi in the large scale structure.
wbeaty
"or just write ads for pepsi in the large scale structure"
I think I love you....
Zephyr Lux
By applying brief pulses, precisely timed, I will split the Earth in half like an apple. Mitchell and Webb: The Death Ray
Black magic from the Nile
Patrick i pooped.
i learned about this effect when showering with a strobe light on
Thanks again Tim
so water bending is possible
one thing I hate about old people like Tim is how enjoyable they are... and what little time they have left... I'm just like NOOOO YOUR TOO AWESOME TO LEAVE THIS WORLD!!
This channel is a gold mine. Gonna buy one of these and the Galus light chimney thing.
Truly a grand illusion
Is that water from the Nile?
This is one of the best you have ever showcased.
This is really just a strobe light. You can try a similar thing at home: buy a strobe light and turn on a ceiling fan. Then turn on the strobe. After some adjusting the blades appear to stand still, even though you can feel the breeze underneath. After more adjustments, the fan can appear to go in reverse.
Imagine a massive one of these on display in a museum. Like a box the size of a room that you could walk around, that would be impressive.
Watch now you see me 2
Unfortunately this trick only works on camera, our eyes don't register it
very nice Mr Illusions, if anyone is wondering how this work's, its all down to the frequency of the light strobe. you can lower the frequency or increase the light on/off and it will give the desired effect you see in the video!
Why cant we see the strobe flashing in the video? To low of frame rate?
It's happening too fast for your eyes to see, standard flourescent lights are actually turning off 100 times a second.
DeoMachina
No, the cycle at 60 Hz in the US, and 50 Hz in UK.
***** This is true, but there are two points on the sine wave where you're at 0 Volts right? That's why I figured the lights are off twice per cycle.
The strobe is quite fast. You are not really aware of the strobe effect when you view it in real life. When you point a video camera at this device, you get a lot of interference between the strobe light and the shutter speed of the camera. Luckily we have a camera that allows the shutter speed to be adjusted, so once the device is running, you can tweak the shutter speed until you lose the interference effects.
***** Yes. But these strobe lamps are cycling at a variable rate that is very much higher than 60Hz or 50Hz.
This is the first time I have ever said this on the internet. It came due to a misunderstanding at first but I think you've earned it.
Mind blown.
Fantastic! I particularly like these short and to-the-point videos.
This thing is really, really cool! Thanks as always, Tim!
Ah they just don't make people like they used to. I like this dude. :)
+Pulsed101 maybe you're in the wrong country?
concious caution I think i am in the wrong country. :S
I remember playing with one of these at a science museum as a kid. I remember being so amazed by it.
That is amazing! I would love to have one of those.
be cool to set it on 'uphill' and put your mouth under the stream.
It'd look like water is coming out of your mouth but you'd be drinking at the same time
At first I was thinking it was some sort of ultrasonic device using sound waves to hold the drops in place. Such devices do exist and use standing waves of vibration to hold droplets in the wave modes. In any case, using a strobe light, as this device shown here uses, is a very impressive way to create the optical illusion of freezing the movement of a liquid and is a technique which, aside from visual aesthetic, is in fact being used along with microscope cameras in medical apparatus in so-called "lab on a chip" microfluidic circuits to do spectroscopy of living biological cells, in fluid medium, which could be very important for the future of medical screening technology.
this might be the first actual illusion I've seen on this channel
You can use sound to make droplets of water actually hover in the air, but this is a much easier way to create the same visual effect.
What a Truly Amazing sight.
Workshop drills each have their own lamp for exactly this reason, because if the ceiling lights are flickering in time with the drill, it might appear as if the drill is actually completely still.
Why can't I stop watching these!
that ending joke was top-notch, Tim
great optical illusion
This is related to the old cowboy films where the wagon wheels used to appear stationary or even rolling backwards while the wagon travels forwards.
Carmel Pule' They're both related to visual synchronisation, but _this_ effect works in real life, it's not created by the camera.
Oh, I remember seeing a rather interesting video on how to make one of these. Rather cool. Always wanted to make one of my own.
What a lovely idea
Wow thats cool... Will this be the new lava lamp?
i doubt it, too noisy and can probably induce seizures
I think it's just an illusion. I think a full stream is falling downwards but they block parts of it out and those blocking parts move up or down.
I saw this done with a strobe controlled by music, it made the drops appear to dance, it was quite fun to watch.
I can't stop watching your videos! Goddammit
it can be done with a speaker at the proper frequency also, and that toy looks like it uses sound also, strobes don't make that vibration sound.
+Human Shores The sound you hear is the water pump. The water droplets are constantly flowing. It's just an optical illusion. Nothing is actually levitating.
Rest in peace :(
Same as vehicle's wheels on video, which is frame rates effect as strobe light.
It's amazing how all the droplets have the exact same shape for each hight so it gives this illusion, I knew that waves were precise IRL, but this shit is almost like the theory, with is a weird precision for such a big scale.
i bought one for my gf for xmas...luckily she dumped me before xmas so i get to keep it haha
clever as it appears,it is rather noisy which is annoying as the water is pumped thru,other than that its a nifty effect and i love it :P
david lathen Hey where did you find it? Oh and i'm sorry for that with your gf.
got it from findmeagift
david lathen Thank you very much ^-^
Really awesome
Is this a real floating thing that i may not know of or is it the old "changing the soudwave Hz to the same speed as the camera fps" trick
its a real thing, think about it, if you blink fast in snow it doesnt look like its falling normally, this is the same thing
its like the camera but you can see it in real life because of the strobe lights.
It's changing the "soudwave" Hz to the same speed as the frequency at which the back-light is blinking. Exact same speed gives the stationary effect, slightly less/more gives the upward/downward flow.
It's water through a special vibratory pump. The outflow is a row of water globs, not a constant stream. Normal pumps don't do this. You can create the drops with a normal pump, a rubber hose, and wiggle the hose with a large loudspeaker and tone-generator. Or use an $80 Gorman-Rupp oscillating pump like in the original science exhibits.
What happends when you touch the drops when they're "frozen" in the air? Does it just mess up the thing creating a normal stream of water?
I want one!
This guy has reached illusion 100
Could a version be made that uses a phosphorescent fluid under an ultraviolet strobe light?
I have seen this before and wanted one so bad, but it's a bit expensive at the moment. You can also fill a glass with the water, shame you didn't show that but still a great video!
he doesn't need to show how it is still water, if people are that stupid they can search them up.
And i thought it was done with sound waves.Because scientists, are actually doing the same with sound waves.But using strobe light, is actually a genius illusion.
shown on Now You See Me 2. nice deco for house
Is this video shot with any specialized camera? like 24 FPS?
Amazing..that is so cool
I thought it was sound waves that levitated the droplets. Pretty sure the strobe lights were just for added effect
For all those who want one and ask where to buy it..google is your friend.
Hint: "Levitating Waters"
Genius. Pure genius!!
It's obviously the doing of Chaos Gods! Skull for the skull throne!
1:00 Perfect heh
Ok, that was pretty cool.
Can anyone remember the levitating tap in a window display on Oxford Street, London. Hendrik do ask Tim if he remembers it. It had me foxed for ages.
I want one!!!
Is this going to be in the Grand Illusion shop?
How much does something like this cost?
When you hack into it....
A lazer light top and bottom
and may be a transducer to impart frequency dancing in, no audio
there a couple of videos of a water tube drain just after passing close over a speaker..
+Jason blank You are over thinking it too much dude! It's simply a constant flow of water drops illuminated by a strobe light with adjustable frequency.
facinating
Is this thing closed? I'd like to see something getting in the way of the droplets.
The strobe light is going so fast that I can't see it! I'M GOING INSANE!
Mesmerizing!
Water from the Nile.
Put your hand through the stream when it looks like it is going up. I wonder what it would look like.
Yes! You'll see the "frozen strobe milk splash" photo, but jittering all around because each splash is different. And as the droplets arrive at your hand, it looks like the video with the giant asteroid splashing into the Earth.
wbeaty Thank you, I could visualize that in my mind.
wbeaty ... the video played in reverse. The droplet slowly reshaping on the hand, then taking hight and going up like the others. But that would be imperfect since each drop can’t crash the exact same way (jittering like you said).
I was amazed about all the drops being the same shape (at same hight) on the stationary mode... Maybe with a coloured liquid and using a container instead of a hand, it would give interesting stationary results... Maybe testing different container shapes (to minimize background waves) and different frequencies for the drops and light...
boumbh
The best surface is a smallish light bulb or christmas ornament. Or a fingertip. That lets the water flow away, rather than building up into a pool with random chaos glop that's not so fascinating.
Water from the Nile..... Water from the Nile........ Nile Water........ Water from the Nile...... *Water. From. The. Nile.*
I need this in my house!
Is the strobe light actually making each drop suspend in air, or is it just the strobe light making it look that way, but really just a normal stream of water?
Wait if you have a row of differently time water droplet. Could you... make a clock? Whoa...
That is great
Actually, I think it's sound waves keeping the droplets in place. Light doesn't carry momentum.
You don't understand the concept at work here. There aren't individual drops, there is nothing suspending anything in mid air. The strobe light (a light that flashes on and off really fast) turns on and off at just the right speed so your eyes only see water when it is in the same position every time, giving the illusion of floating droplets when it is in facts just a flowing stream of water.
Conman_123 Oh, cool.
But, uh, there are devices that look very similar to that which suspend water with sound waves. Like, it looks exactly the same.
Wasn't this in one of the now you see me movies?
from the levitating nile
And I thought it was an acoustic levitation machine when I saw the title. Still very cool, though.
sound.
The device does make a background noise, which is what you can hear.
Grand Illusions i think its of water pump not of strobe light.
Grand Illusions You can make droplets and other light objects levitate with the constructive interference of sound waves.
"Acoustic Levitation" it's called, that's what I initially thought this was.
word.
i saw this once and was explained.
Interesting. Why cant we see the strobe?
thats awesome..i want 1 too 😎😎
It has to do with sound waves around 345 hertz. The sound waves counter the water
Wrong this is just strobe light illusions not sound that is is a different machine
Where can I buy it? Take my money!
"Heres a wonderful toy I come across" lol!
Where can I buy one of these? I need one!!!
I have to get one of those. Where?
Where can you buy something like this
This gadget reminds me of a figurine for home decoration in the shape of Venus (as in the birth of Venus) in the early eighties. Venus stands in the middle of a round that looks like a bird cage. What happens is when the gadget is turned on, it lights up and there are water droplets (it's actually a thick oil) coming down on all the vertical bars of the cage, thus creating a shower effect. So it looks like Venus is standing behind a waterfall. I wonder if someone still has it?
ooh... this could be a danger to epileptics...
That's so dope
actually it use sound wave to levitate the water.