Aww even i dream of learning quantum physics and relativity as a teen

Did you retire to pursue farming ?

Dear sir people like you are experienced and this generation needs your suggestions.may god bless you and give sound health

Hy

Truly beautiful, thanks for sharing your experience and background.

😂😂

😂😂

So true I didn't understand a thing

From what I understood (with a wikipedia article on the streak camera and a news article on the whole setup), the streak camera is the one in charge of recording the change in light through time. It is constructed in a way that, as the thin streak of light enters the camera, it gets deflected on a different part of the camera sensor depending on when the light entered the camera. The image the camera produces is a 2D image, but each line of the image represents the same line that was recorded, just at a different point in time. This way, they're able to record a thin streak of light at a very low temporal resolution. However, the resulting image quality is very poor, so they use a secondary camera that records a still image (i.e. a single frame). Then they use the data collected from the streak camera and combine it together with the still image with a mathematical method called a Radon transform. This enables them to effectively reconstruct what the movie would look like as if it was taken with a single insanely fast camera. I don't know what the whole encoding business is about, but the article I used as my source is 6 months old, so maybe it's some sort of improvement. Or just something not mentioned in the article.

It's probably patented so he won't release "how it works" But I heard you can't build a recorder that records at the speed of light as that violates the information paradox. The fastest detectors operate bout 1million fps. So what I suspect is happening is that the femtosecond of exposure is stretched out by diffracting it along a series of mirrors, until it's "slow" enough to be recorded. Rather like stretching out pen marks on a rubber band. The "information" is retained but "longer" so now can be recorded.

That's why it's almost impossible to measure the 1way speed of light

Peyooooom bap I don’t know how to type an outro song, leave me alone

Which is the speed of light.

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@@Eddie-jr6bs not quite.

How can that even be from an energy conservation standpoint? Does it produce some other radiation instead of heat?

@@Mobin92 This Process is unique to certain materials, like diamond so i will use that as an example. It is because of the unique thermal conductivity properties of diamond combined with the speed of a femtosecond laser and the extremely short wavelength of femto lasers (typically in the UV range - 355nm). These types of systems do not operate under a continuous laser beam but rather a chain of extremely short pulses. The time unit of measurement between each pulse is measured in Femtoseconds. When the laser pulse hits the diamond, the carbon lattice structures heat up and are ejected. Between successive laser pulses, the carbon lattice has enough time to cool down so there is no heat affected zone around the surrounding area which has been cut by the laser.

@@Mobin92 If you are interested in understand the science behind this process i recommend Ron Schaffers youtube channel, Photomachining.

@@Mobin92 the laser does in fact produce heat, It’s just that because the femtosecond laser is so fast (The amount of time the laser beam is on vs off between pulses) The material has time between each laser pulse to cool down

How many times are you going to post this exact same thing?

How do u have that much patience to find that out

Nice

Because most of us dont understand binary code

Andre Weeb I know obviously he didn’t take 30 classes to learn binary and just translate that for us... I’m saying why did he take the time to type that into a binary code translater, for all he know that could have been nothing 😂

Abtin you’re right. I didn’t take a bunch of classes to read binary. I just put it in a binary translator. My literal thought process was, “they put binary there that looks like it could be something. Let me check” and so I did. If it turned out to be nothing, I wouldn’t have been angry. I probably would’ve have just been disappointed at the wasted opportunity.

That's as fast as I leave school when the last bell rings...

Sir can u speak English please 😂?

*correction* equivalent

Imagine the Universe's 13.7 billion year long age... running in Pico time. That would take.... I can't even calculate that... my mind hurts.

1 picosecond to 1 second, is equivalent to 1 second to 31,709 years.

"Time travel is possible we just don't have the technology"

Yes, 13 billion years. And that's only because we can't see farther objects. Space is vast.

8 minutes from our own sun.

@@guardiandarkness5345 ok then where the time travelers at? i dont see them.

yup. some stars we see in the sky may already have been long gone.

What if we used 100% of our brain capacity

5000 IQ

thats a real power move

@@wawowawawo7553 people would still argue if the earth is round or spherical or flat

So you mean we can see the speed of light and then put it up to 200% on replay? Hmmm!

I still don't get what its mean

@@yonk3214 there are infinite numbers between 0 and 1. You will never stop counting.

@@yonk3214 for example, 0.0000000000000000000000000000000000000000000001, 0.0000000000000000000000000000000000000000000002, etc.

This was rather used to illustrate how *short* forever feels, if you're already dead. Not that there are infinite real numbers b/w 0 and 1 (so you wouldn't stop counting).

101st like

@bababooey cringe 14 year old girl

Algorithm speed is much slower than the speed of light. It's imperceptible to the human eye as it's so slow.

4 real

Stop it you bot

If a tree falls in a forest and no one is around to hear it, does it make a sound?

Mr. Saturday sounds is a human concept, without humans there is not sound

Interesting 🤔

I got another one... if a tomato is a fruit (which it is) so would that make ketchup a jam?

Reuben Travers

that was oversimplefied explenation, so it could be understood at least to some extent.

explanation unclear i want to know how they manage to record binary numbers as fast as light speed even we know the best electronic is like snail compared to light

He never really said any thing that links it to bridges the boundary of how to filming light faster than light. All he said was the light from the object is bounced off a mirror and sent to a camera but somehow digitized before it got there. Wha?

At least MIT's camera takes just one instance per laser pulse on camera in 1dimension. This is then done again and again to stitch complete picture. This is possible because every laser pulse is similar thus you need only to know at what point in time take the other pics. They have good video about it

I'll be honest, as much as I'd like to understand how you can film the speed of light, I don't think any amount of explaining will get me there. I don't even really understand how the Phantom camera works, to be honest.

8 hours ago? *Pretty neat*

VSauce already covered that

Or the speed of push?

@@bedo2524 nothing imposible

According to the special relativity the speed of light is equal to the speed of dark.... So there is no need to do that by the way... I think they could try with an electron ..in macroscopic level... #slow-mo...😇

@@NiallMartin1 great idea

Stefan Huber pretty sure if they have equipment on that level it’s the other way around. They are diving much deeper into things.

Pniko r/whoosh

Pniko those guys made the equipment

R/wooooosh

Pniko r/whoooooooooooossshhh

01010000 01101100 01100001 01101110 01100101 01110100 00100000 01010011 01101100 01101111 01110111 00100000 01001101 01101111 00100000 01000101 01100001 01110011 01110100 01100101 01110010 00100000 01000101 01100111 01100111 01010000 01101100 01100001 01101110 01100101 01110100 00100000 01010011 01101100 01101111 01110111 01100001 01110011 01110100 01100101 01110010 00100000 01000101 01100111 01100111 Here are the numbers if anyone wants to check it out. lol

@@raphaelkap www.browserling.com/tools/binary-to-text says "Planet Slow Mo Easter EggPlanet Slowaster Egg".

@@EVAUnit4A www.qbit.it/lab/bintext.php Yeah, this site does the same.

I spent 5 minutes manually typing it in and running it through a translator before I saw your comment...

@@albertarason4502 same wish I came here first XD

Doctor

Not original 😁

Sooooooniiiiiiiic????????

Nigerian flim.

Nigerian film

Thank u

Thank you, so much fluff before the content...

Thank

@@testbrand5261 that's bc this is the explanation of the video where the content is

Thanks

What are u doing here lol

Cosmologists consider a few MILLION lightyears to be really close on the scale of the visible universe. The gravity wave observatories are now routinely detecting blackhole mergers estimated to be over 1 BILLION lightyears away. The EHT (event horizon telescope) just recently released an image of a supermassive blackhole roughly 56 MILLION lightyears away. We're privileged to be living in a time when time-scales of femtoseconds to billions of years are accessible to us. We are simultaneously eternal compared to the femtosecond and unimaginably brief compared to billions of years.

That's impossible to know

Wait why the heck does Gryphon have 26 likes on this when he almost has 3mill subs lol Love his vids by the way

Hello ^^

I would agree. It's interesting to see this stuff because even the most common things are fascinating at some level.

That's nothing. Ive been in hotel rooms so small that when you switch off the light, its still not dark when you get into bed.

The black hole pic

3 or 4

MrLeGiso yes

I get a feeling this camera must be precise enough to capture the exact frames it needs to capture. It captures trillions of frames a second, but it probably only captures for way less than a nanosecond of realtime footage.

Alexandre Parent yes

Normal People when they so the film think about the camera and how they did that Me and you we think about the storage 😂

Stay blessed

oh boy.

thanks matt

Woahh

@@duk2k hello brother

show that the non-binary folks, they will be triggered ;D

@@hyperhektor7733 *Woah hey look at me I can read binary haha peasants*

Nah, now it's gonna be the fast mo guys and it's gonna be about filming the slowest objects and speeding them up

Woo sh that would actually be really cool but more difficult to find subject

@@kailenswisher9828 they could just film college classes, those stuff are for sure the slowest things ever

@@Fs-zo8ws savage

They filmed the fastest thing but not everything that is fast. There are still plenty of things to film in slow motion😁

Mind blowing

If this thing invented in einstein time i think phone can do it now

Einstein wasn't studying light so I'm not sure he'll do much

@@milesedgeworth132 go back to school lol

@@lorriecarrel9962 What school did you flunk out of? He was studying quantum physics and astronomy, not optical physics. Dr. Lihong Wang is studying a field of physics that wasn't around in Einstein's time, much like many physicists today. The closest thing to optical physics experimentation Einstein did was the Eddington experiment, which still would have made Dr. Wang's equipment useless.

Great

Them: Hold my beer

RT has discovered the concept of relativity.

Too fast for eyes but not for that camera

Мы не можем видеть полёт пули! Однако видим при замедленном воспроизведении

Raythenoodle 1 can you send me a time frame because i can barely even find it, is it even in the video?

@@cheeseboi6357 0:22

So what I said the same thing when my nudes leaked except 1.8 is a little low.

@@Scorpia__ Give us a link

@@xero2715 dude...

even my cat? 🙀

ItzCr3eper and mine 😺

Miaw 😻😻😻

😸😸😸😸😸😸😸😸😸😸😸😸😸😸😸😸🙀🙀🙀🙀🙀🙀🙀😼🙀🐱🐈🐈😸😹😸😸🙀🙀🙀🙀🐱🐱🐱🐱😻😻😻😻😻😻😻😻😺😹😹😸😸🐈🐈🐱🐈😹😹😻😺😹🙀 x2000

🐕 I like these better...

Well only one blink

he sounded so irritated

Shut up producer, I'm enjoying this.

i wish i could go on aincrad

Well its KZfaq wdy expect?

definetly, I hope they read it and send it to them.

I don't think it would matter, as the camera is still "viewing" the photons, which is part of the anomaly. The speed of the camera wouldn't explain why the photons react differently to being watched.

I Think they did, if you look More videos of the femtosecond camera, you can see some weird stuff about how they see things behind a wall. The double slit experiment not, but some sort of that. I remember, is how a beam of light spread on an apple, and they visualice some wave behavior by quantum effect in the shadow.

The double slit experiment relies on firing individual photons, which this camera couldn't detect, as capturing the image required having some way to scatter the laser beam's multiple photons into the camera (the milk or a lens, for example.) Now that I say that, I suppose you may be able to fire the photons directly at the camera's detector, but that would only be able to tell us when they arrived, not how they traveled, since you'd need a view from the side for that. As we're already firing individual photons, time of arrival would be useless information. EDIT: This is also assuming the camera has the resolution required to resolve individual photons, which I doubt it does given the video quality shown.

@@chikitronrx0 sounds awesome, where did you find those videos?

That cat lived in turkey and died a few years ago sorry for your lost you can drink rakı for it it used to loved it RIP Tekirdagian cat

How about filming Dan getting shot by a laser in slow-mo?

Level 1000, film light getting hurt in slow mo?

Level undefined: filming light getting hurt

Its Zain Dead meme

Interesting question! From what we know of relativity though the answer is no, the main constraint to measuring light in a particular direction isn't a fast enough camera it's that the time elapsed in a particular direction is contingent on the relative velocities between the observer and phenomenon when the observation is being made. For a visual example of this check out en.wikipedia.org/wiki/Time_dilation#Time_dilation_caused_by_a_relative_velocity You can see on the left when the observer is at rest we get a certain time and distance elapsed but when the observer is in some relative motion to the event being the time elapsed is increased. Even though for the light's purposes it's still moving the same vertical path it was going through before, for the observer the light is now moving through a longer, diagonal distance over a longer time.

The answer to measuring the speed of light one way is far simpler than we need relativity for, even if it is a factor. The signal to the receiver goes at the same speed (or slower with electronic component interfacing or computer language translation) as the light we're trying to measure between two points. Mind we're only trying to record the difference in time, not a picture of it as was done in the videos here. The light gets to the receiver before or at the same exact time as the trigger signal saying "start recording the time now." The time recorded by the target device in this scenario is always zero or negative. A negative result only tells you how delayed your data is, not the speed of either the light or the transmission. There is no workaround to this without quantum tunneling of some sort linking the emitter and receiver into an instant connection that defies proven and useful physics on any scale above subatomic. The only way to directly record the speed of light is with a reflection back to the source device, (which started its own timer,) then divide that time by the round-trip distance. That being said, we can (humanity can...I certainly can't myself) reasonably record said speed from the side as was done here, with devices that are independent from the light's source or target, and a helper medium to make the light visible from the side. That measurement, however, is fallible due to perspective and distance. In the bottle demonstration, light is also refracted by the bottle's shape. (And why couldn't they remove the label!?) This is kind of a good-quality middle point between accurately measuring the speed of light, and measuring the speed of data like the common demonstration of waving a laser across the sky. (In the sky, one side of the arcing motion is billions of light-years away from the other, but you haven't made the light move that fast, nor perceived at that speed.) All this is not to say the video is inaccurate or not really amazing. It's just measuring the speed of light in our perspective, not the direct rate of travel. The speed of playback also completely changes the apparent amount of time, but that's down to trust in the technology and presenter.

Yeah, out of all the follow ups, i found this episode to be the best.

That's the beginning of what I wanted in this video. Demonstrating the time scale is fine, but I got that already even if I don't know the factors offhand. The lenses were interesting, but...I really want to know how the camera takes that many frames per second. I suppose it's a similar signalling system between the camera and laser, for both to be so short and precise.

Lol

The somehow and "placing it" inside a particle accelerator are the challenges.

I don’t fully understand how we are able to see certain stars and galaxies from here on earth with our eyes…yet impossible to ever physically get anywhere near them🤔 Space time is so different then anything most people can truly comprehend . The time the universe evolved compared to time we as humans have spent on this planet is almost confusing…We still haven’t explored 100% of Earth…And to think a few HUNDRED years ago people were using animals for transportation while the only available light after the sun went down was the moon and stars in the sky…unless a fire was involved. 🫤

@@MaRkYWaHoO "I don’t fully understand how we are able to see certain stars and galaxies from here on earth with our eyes…yet impossible to ever physically get anywhere near them" We are small, but the galaxies are far away. Small... Far away...

Lol

U SOUND TRINI/JAMAICAN🇯🇲🇯🇲🇹🇹🇹🇹

What is crazy as well is that all of that is refering to the speed of light in a vacuum. The light we saw in the video, isn't quite as fast as the speed you mentioned but, it is still on the same scale. If light is traveling through a medium, it is possible for objects with mass to travel fast than the speed of light, creating a "optical boom" (this is called Cherenkov radiation".

Light is fast and we can hardly comprehend it, but then think about the distances it takes to make light have a 4 year commute. Then you go up in scale and realize the milky way is thought to be just over 100,000 light years in diameter which means it would take light 100,000 years to go from one side to the other. How long would a video of light traveling across the galaxy shot at 10 trillion frames per second be?

eightfreak888 my mind cant comprehend the fact that even for light if would take 100k years to go from one side of our galaxy to the other . im trying to wrap my head around how big our galaxy is .... & its just one out of many galaxys in a even bigger universe that holds them all ... my God ....

to make your numbers more precise: travel around earth: boeing 747: 570 mph, 43h 41m concorde: 1341 mph, 18h 34m sr-71: 2455 mph, 10h 8m ISS: ~17000mph, ~ 1h 30m sun to earth light travel time: ~ 8m 19s

Dup

Wow. That's terribly

هاي غاي

عبدالله عبيدات ؟؟؟؟؟!!!!!

Lol