Outstanding video, I was wondering how you were planning to explain the effect and your explanation was very clear. All in all a perfect Tom Scott video

Amazing!

Is that Matt who did still a better job at the bulldet dodging shot than you?

What is the music at the end of the video?

@@sachingiyer the Prelude from J.S. Bach's Cello Suite No.1 in G Major.

I was just looking for this comment🤣

What an icon

Tom *uses glasses* Also Tom: Put his hands on the laser path

For science.

**i dont wanna live anymore**

I was thinking “this isn’t *your* test any more, buddy. This is Tom’s video.”

Turns out the test was just not burning anyone's hand.

"Can this burn my hand?" "Yes." ":)" "You're ruining my test now."

I've listened to quite some podcasts with Seb and he's such a patient and polite person.

Brits huh

OK this is underrated

K

Ha

Deserves more likes.

?

lightsabers are the plasma ones, I think blasters shoot super-compressed particle beams using gas or something

Wait but aren’t the crystals supposed to power the lightsaber by chanelling the force through the wielder?

@@optionfive. You don't need the force to turn on a saber

Saber is a laser that shoots into a crystal and is reflected outward. I imagine since it's basically a flashlight it travels forever but is most concentrated a certain saber distance.

Lmao 69 likes

uuUUAAAAAAAAAAAAAAAUUUUGH

what in the world was that noise ahaha

4:43

Dude yes!

Lmao me too

Stolen comment-

Stolennn

@@marty4459 because it's impossible for two people to come up with the same, unoriginal, comment independently.

*ouch*

@@marty4459 not stolen, it’s just that people think

Anyway*

@@momosvge8538 who cares it’s one letter

@@momosvge8538 shut up.

anyway*

@@i_am_secretly_uncool "im a raper(rapper)" i know raper isnt an actual word but considering this is the internet it would make sense to use it

The actual meaning of boys will be boys.

Underrated comment!

The Superginge No!

I mean. Red shirts were way less likely to be killed.

Red means recording.

Star Trek?

I am no expert at all but if you combine that laser with a bright light that illuminates the room at a specific frequency the light could make the laser look less intense infront of the now light up background. A bit like the floating water experiment but in reverse. But it might not work this way since the other experiment works with the absent of light and this with the addition. Means the eyes will probably just "fill" the time with no light and therefore no visible effect. But what about this effect with 3d glasses that open and close? Very likely it is open for too long...

@@Schoko4craft I don't think it would, but then I'm not an expert either.

@@Schoko4craftlike with a incriedibly bright strobe light i would also expirement with special glasses/goggles and maybe fog/smoke generaters But theroreticly you could do the same thing if you have a shutter switch on the laser to turn it off and on fast enough(really fast)0

There are versions that do it for the human eye, but they're noisy - focus invisible light to the point it turns the air to plasma at the focus point, and you draw your image from little dots

@@Schoko4craft no it won't. That only works with effects that also work on a full frame shutter, but this requires a rolling shutter so it's not possible.

"laserist" sounds more like someone who's irrationally biased about lasers.

Peopleist

WUB, I felt like I'm being called right here 😏✌

@@michaeledmunds7266 someone that gets "political" about lasers

Hey, I watch your channel. Very interesting content

V bb cv C z

@@HangTimeDeluxe There are laser 3D displays that ionize air by focusing a laser, that way you can make glowing dots or lines where you need them... The laser beam itself being invisible, and only the ionized air emitting light. And they even use pulses so short that Tom could perhaps touch that kind of a beam too without burning his hand. Aerial Burton is one of the companies making those...

We called it a Banding Effects in everyday terms :)😏

Its annoying and boring that its just a camera trick. That means it has no function in real life, the video is clickbait and there's no reason not to have just added it with after effects.

waffeltek 😂

@waffeltek How is that relevant?

@waffeltek Sure, but how is it relevant?

Hahahaha

@waffeltek Do you actually know what relevant means?

the feeling is mutual my friend 😀

This is actually steve mould

Wut u got only 21 likes

Ok Steve

Hi verified

We’re all from the fourth dimension.

@@whdrawing3863 *gasp*

@@whdrawing3863 plot twist

Especially when the video title is clickbait from a KZfaqr who USUALLY doesn't stoop so low.

Only thing that disappoints me about these things is that you can't do it for a human eye, normal displays that rely on tricking the eye via high speed only put light where it's wanted, while this relys on ignoring all light except a specific part so that spiral effect probably looked like a cone irl.

@@jkazos imagine caring about a title and not the content of the video, lmao.

This time it's both!

@@Riftwalker_hpf3 Ok, _that's_ valid.

So you think people out of their 20s can't do a backbend? I have some yogis to convince you otherwise...

@@clray123 it's a joke

If Tom can't do what a yogi can, can a yogi do what Tom can?

clray123 chilax

clray123 chill

Just gotta check if you’re immune to lasers

It was immediately obvious to me that it was a shutter effect.

@@rars0n good for you

@@rars0n Wow you must be very smart

"can this burn me" "yes" "ok"

@@rars0n weird flex, but okay.

God is dead and Tom Scott killed him.

@@user-bo6vy5eg8g ah, nice reference..

Devil: I just wanted to say that i'm a huge fan.

Easy, rolling shutter effect mate. It's all you need.

Do you find this funny

just don't point it at your eyes

Seb is a professional, but they did seem a bit careless.

@@vinegarlegate24 With a class 4 laser, you could blind yourself pointing it at a wall.

@@vinegarlegate24 Hey... did you know light reflects?

If I were to guess I’d say they likely didn’t use glasses while filming because it looks better. I mean if u were to learn how to backflip you’d probably want a mattress under u but when u show the video to your friend u gotta be landing one on the grass.

Interesting Thought that is.

The lasers are mounted solidly so that may amke it a bit safer

@@the_retag probably not, lasers are extremely finicky.

@@the_retag class 4 lasers are dangerous even when looking at a diffuse reflection (off a wall for example). It's usually only dangerous a small distance away from the diffusing source but still...

@@the_retag When somebody or something interacts with the laser the reflection can be unpredictable, so no, it's still not okay

I read all of these comments with Styropyro’s voice

"throw me a bone here"

That cabinet it’s on top of if filled with speaker could put out some bass...perhaps angry sea bass?

@@bug5654 hahahaha As a bass player I approve this method

Next Video: Replacing your vhinkey after an unfortunate shmelting accident

It’s a failed test design that GLaDOS wanted.

Meow

Turns out this is like the reverse - slow photography.

Would a camera like that even behave like a camera? I mean the res would be so low it might aswell be called a light detector

I thought that Tom had already done a video on that technology, but I could well be mistaken.

@@sixstringedthing Slow Mo Guys did a video on it. Wrong Brit.

@@JaxMerrick thanks for the correction

Then moving it left and right and then up and down

My cousin does that every day. He's a train driver.

It *can* be done... If the train is only moving at about a millimeter or two per second, it's engine is not engaged, you're really strong/have a lot of endurance, and you are on a long straightaway on flat ground.

@@K9TheFirst1… or if toy trains count. 😉

That's easy. I could do it with one hand. Although I wouldn't want to, because I'd lose the hand. It works like this: you stand by the tracks, as the train approaches you reach out a hand and SLAP that mofo in it's little train face. so your hand starts out travelling at, whatever, say 10mph towards the train, then as the train hits it at 40mph in the opposite direction, the hand slows down, stops, and reverses direction. It has to stop in the middle, it can't go from 10mph to -40mph without passing through zero. It passes through zero mph at a time when it is in contact with the front of the train, therefore the train must hit zero mph too. And that's how you stop a train with one hand. But, like, you probably shouldn't.

Peices of your hand are permanently falling onto the ground

I could've said the same thing about one of his vids a couple of years ago. I hope life gives you things to smile about again soon.

Maxx B keep smiling mate it will get better 🙏

I hope future days are better for you! I've had sad news recently too.

yes, and actually many film cameras had rolling shutters too, especially the ones for stills-it was the dominant kind for the 35mm format rotary shutters for movie cameras were also common

@@666Tomato666 Even today in digital cameras, especially professional ones like RED cameras, the metric of shutter angle is still used, a combination of shutter speed and framerate. This is a remnant from rotary shutters. A shutter angle of 90° means that the exposure time is a quarter of the time each frame represents (at 24 FPS, the standard in movies, that's about 40 milliseconds per frame, so 10 milliseconds of exposure time). This is because with a rotary shutter, 90° is a quarter of the disc, and the shutter disc makes one revolution every frame, therefore the film is exposed for only a quarter of the time of the frame. Film cameras and rotary shutters are used less and less of course, but shutter angle remains as standard terminology.

Yup, and doing some quick googling the cost for a camera is several thousand to over $10,000 That doesn't even come close to the cost the broadcast lens which can cost over $200,000.

@@Dysan72 actually there are far cheaper options, like Black Magic Production Camera 4k that offer global shutter there are also rolling shutter cameras that have very fast readout (

@@Dysan72 The optics are the biggest factor in the added cost as CCD sensors are less sensitive than CMOS sensors mostly because of the benefit which results in rolling shutter being used namely that the rolling shutter allows the sensor to continue collecting light during the readout. CCD sensors need to be kept in complete darkness for the entire duration of the readout of every pixel thus less effective exposure time per frame and less sensitivity so you need a larger aperture and thus larger lenses etc to be able to deliver good performance over a range of different lighting scenarios.

We’ve already seen that he’s a Jedi, so it’s only a matter of time

3:30 Piano app thing be like

Okay.

XD

That is excellent. brb, going to cause every one of my contacts to roll their eyes.

No one likes your comment why don't you delete it? Coz it's shite Hahaha

a little needlessly aggressive jeff

@@jeffknott7360 Profile picture checks out.

@@jeffknott7360 no u

Jeff Knott calm ur moobs jeffy boy

We could easily make some glasses that do this for us

@@thesuperginge1348 well the glasses would need to be huge, or at least something like the google glass since it need a camera and a display in front of your eyes so you don't see anything else around your fov

you guy figure it out yet? you're describing 3d t.v. glasses

@@heatshield ? no he's not, 3d glasses use 2 different LENSES to trick your mind into thinking the two images on screen are not 2D, but for this to work you need CAMERA SHUTTERS since the laser is constantly going and depends on the shutter of the camera for the illusion.

@@the_unkilled2238 look into it a bit, you'll see what I mean.

57thorns if that where the case, Tom Scott wouldn’t be the one to break it to you. That would be massive news :)

soundcloud (dot) com/captaindisillusion/debunk-breakdown

Jake 28 You dont have to do (dot) instead of . it won’t block it

Actually theyre burning gas

@@Timeward76 plasma basically

Star Trek Phasers are plasma too.

I've seen, 2 myself and you.

Its just u....

Name not found - I’m not certain but it might be part of Bach’s Cello Suite No.1 in G Major.

@@marenkuether-ulberg3311 you're right, it's the prelude to Bach's Cello Suite No. 1

Your retina isn't in your hand.

@@ErwinPommel class 4 laser can burn your retina reflecting from a diffuse object.

@@ErwinPommel Now that's a damn scientific statement if I've ever heard one

@@ErwinPommel straight facts

Jim Stanley At intensities much greater than that of the laser Tom stuck his hand in front of. They cranked it up at the end and Tom could feel the heat just standing next to it. It burned the wall it was pointed it at by the look of it. _That_ intensity could’ve damaged his retina even after subsurface scattering.

I felt the same. The dude seems like a passive aggressive prick.

Must proteccc

Duchi Black holes think everything is food. Light? What’s that? Does it taste good? Nom nom nom.

Is there something that is not food to a black hole ...

@@2ebarman dark matter? Honestly dk

@@db5094 We could call it NEM, Non-Edible Matter

@@2ebarman you'd need negative mass, but as far as we know that doesn't exist.

[Piano intensifies]

You realise its not actually happening? its just a camera trick. that guardian laser will still light you up lmao

@@daveski7 well i dont think calamity ganon is happening either

@David Turner i didn't imply that it was but ok