Visualizing the Speed of Light and Speed of Sound

In this animation we will compare the speed of light (the images of objects that reach our eyes) to the speed of sound. We will also look at some everyday examples of where the discrepancy between these two speeds are visible. I hope this video gives you a great understanding of the two speeds. Thanks for watching and please consider subscribing for more!!
Follow me on instagram: / animations_xplaned
Note:
Speed of sound is based on observations in dry air at 20°C
Speed of light is based on observations in vacuum
Distances between earth, sun and the moon vary throughout the year.
The size and distance of the planets are to scale
Edit: Speed of sound would take ~18,678 minutes to get from earth to the moon. Around 13 days.

[@luois]

In Paris actually sound is faster than light, you will hear the horn of the car behind you before the light turns green

[@habu179]

Very good.....

[@nachote141]

Also in Buenos Aires!

[@railworksamerica]

Also in NYC

[@Jibrail5726]

Not really. Speed of light is constant whereever you are. Thats just people being impatient and honking before it turns green

[@ryan-eq8qd]

@@Jibrail5726the joke went over your head

[@rickjones871]

You can tell the speed of light is much faster than the speed of sound. Some people appear bright until you hear them talk.

[@gabrielabisaad1024]

I love that

[@andresgonzalez-gm5ry]

nice!

[@liljrae9684]

HAAAAAAAAAAAAAA

[@farhanaditya2647]

😂 😂 😂

[@AlwaysOnForever]

Lmao, didn't expect that turn

[@FYGHT]

One of my favorite examples is hearing fireworks. I find it so interesting how you can be a couple hundred feet away from a firework and you still notice a delay between the explosion and the sound.

[@IIISentorIII]

yea really "interesting"........Why do I have to share this world with sheeps....

[@garegos7184]

@@IIISentorIII what a smart and thorough thought through answer.

[@paltson]

​@@IIISentorIIIstfu man, let the guy enjoy his fireworks

[@kap1526]

​@@IIISentorIIIhaha loser 😂

[@Robstrap]

​@@garegos7184how's it smart lol, the speed of sound is an extremely basic concept and observation

[@mateny.6770]

Good job on the video. But I'm surprised, that there is no mention of the thunderstorm. I think that's the situation most people experiense the difference in the speed of light and sound.

[@thestudentofficial5483]

Yes, my teacher taught me this by telling us how to calculate distance to the lightning strike

[@davidflavin]

Very good examples for a young USA audience I'm assuming.

[@sicfxmusic]

That's the fact most people know since pre-school including yourself so why repeat the obvious

[@andregustavo2086]

@@sicfxmusic I thought the same

[@tomn1568]

I thought of fireworks

[@RH-xs8gz]

The amazing thing is, that on astronomical scales, even light is slow.

[@urbnized]

Takes light 44 mins on avg to reach Earth when reflected off Jupiter.... In the long run its all technically slow. But compared to our lives its fast.

[@nothingspecial9370]

Not slow... Rather You should say Extremely slow

[@liljrae9684]

yep. over 2.5 million years just to reach one of closest neighboring galaxies, the andromeda

[@RH-xs8gz]

@@nothingspecial9370 glacially slow

[@lewis7515]

"The speed of light is nearly instantaneous...." [Nonspecific generalisation = instantly irritated].

[@paull2937]

1:14 Remember, the speed of sound is not always the same, it varies greatly with temperature and slightly with humidity and air pressure. On a chilly winter morning, which is about 14°F (-10°C), sound will only travel about 325 meters per second, +/- 1 meter per second depending on other factors. But on a hot summer day, which is about 95°F (35°C), sound will travel about 352 meters per second, +/- 2 meters per second depending on other factors.

[@mattd6085]

The speed of light also changes depending on factors

[@FFuriousOreo]

nice ctrl v dud

[@pyramixmaster7905]

@@mattd6085 not noticeable to humans though

[@mattd6085]

@@Lhaj3 the speed of light varies by the medium it travels through. How it does that is irrelevant

[@theauditor456]

@@mattd6085 no the speed of light is constant. The velocity of light may vary depending on density of medium.

[@CarlSolovox]

The best example I've heard: If you were sitting in the outfield upper-deck stands at a baseball stadium, and you were also watching the same game's live telecast on a portable television, you would hear the crack of the bat on the television before you heard it from where you were sitting. Meaning the broadcast signal left the stadium, got processed and converted into a signal that was then beamed to an orbiting satellite...then back down to a transmitting tower, and then to the screen and speaker in your tv...all before the sound from the bat reached you from five hundred feet.

[@westnblu]

also when people clap on the far side of the stadium u see the clapping b4 u hear the sound.

[@MarcillaSmith]

Also, even though it's called a wave, when it happens in the stadium, it's not a tidal interaction with the moon. I love science

[@ddebenedictis]

Great example and description. You took a normal example like comparing the sound and light traveling from the bat to your seat...and juiced it up on steroids. Appropriate for a baseball analogy 😂

[@macicoinc9363]

I hate to be a dick, but there is typically a lot of delay in the processing and converting stage of the broadcast which would cause a few seconds of delay. However, if you ignore them and just go based on the distance light takes to get to your tv than your example still holds.

[@anasabdul5119]

Also why optical wires use the concept of light to transmit signals.

[@TheRealGuywithoutaMustache]

Just think how fast the speed of light is and how far light can travel continuously for a year. Now imagine traveling at the speed of light for decades and we’d barely be able to explore a portion of our galaxy. It’s just mind blowing how incomprehensibly large this universe is.

[@some-jm4go]

eyy

[@msou8400]

Wenoma

[@womp47]

even just from the moon and back the speed of light is slow. just in our our solar system it becomes unbearably slow. its sad just how slow the speed limit of the universe really is

[@Untilitpases]

*for decades* time dilation enters into the scene

[@Tikvinka]

But Earth is flat, and stars are painted on the sky dome

[@rollinrobo]

One of my favourite examples is when you go to watch a live band in a large venue, and you're sitting in one of the upper levels of the venue, and you look down at the people jumping in the mosh pit. There's always a noticeable 'wave' effect as the people are jumping and the ones near the stage hear the sound before the people further away from the stage.

[@FirstMomentsOf]

Props to the camera man who went all the way from earth to the sun and back.

[@Cr3reeper]

@@juan2049 this is internet it doesnt fucking matter, try something raw like "the bass came harder than my grandma falling on the stairs" you can complaint that

[@tuxtitan780]

@@juan2049 your reply isn't original. Come up with new material

[@259]

@@tuxtitan780 Your reply to the reply isn't original. Come up with new material

[@CadillacDriver]

@@Cr3reeper "you can complaint that". Yeah na, with your obviously low I.Q., you have no place telling someone what they can say or not.

[@thing.]

@@259 Your reply to the reply to the reply isn't original. Come up with new material

[@lemmiix]

2:51 this feels so real. Shows how important sound design is for movies/games/etc.

[@LnmHive]

I feel kinda disappointed when a movie shows an explosion from far away but the sound comes at the same time

[@OblivionFalls]

@@LnmHive Chernobyl did a good job getting this right

[@Coyote0874]

@@OblivionFalls Not great, not terrible

[@LnmHive]

@@OblivionFalls Wow, OblivionFall? I wasn't expecting to see you here, I know of your work with DAGames

[@Asto508]

This feels like buggy audio latency actually.

[@ruthlessrubberducky5729]

Props to you actually animating a bullet correctly (separates from casing) and specifying caliber (massive velocity differences) of such a bullet. Can't tell you how many people mess this up while trying to look smart and throw out numbers. Credibility went way up for me to see you do the actual research and math.

[@chicobicalho5621]

For me lightning and thunder are the perfect examples to illustrate this point. One funny aspect of this difference is related to sheppards and the dogs that obey their command by hearing different kinds of whistles. When the distance becomes really great, the sheppards have to keep in mind that the dogs will hear the sound of the whistling with a delay, so the human has to predict the movement of the sheep herd ahead of time, keeping in mind the sound of the whistle will be received by the dog with a delay of two or more seconds, and this involves a lot of knowlege, experience, and technique beyond the traditional herding!

[@PlayboyKeon]

not every one experiences lightning. more people in the world experience a plane flying above them at great heights, so its an easier analogy for the majority to relate and understand. not thunderstorms where most don’t see such a thing.

[@SebastianRodriguez-gi8iq]

@@PlayboyKeon Is this true where u live? Is it that rare to watch a thunder? In my country i wouldn’t be exaggerating if i stated that everyone has seen a thunder. They are extremely common.

[@AveryB.0]

@@PlayboyKeon I would say much more people in the world experience lighting than a plane flying over there heads lol. You gotta think of all the rual areas of the world with no nearby airports.

[@hxhdfjifzirstc894]

I remember when I was a kid, I thought lightning and thunder were two different things... that both happened during storms. After a while, you figure it out.

[@AllEy3s0nMe]

@@PlayboyKeon Only people that don't experience lightning are blind people.

[@davemitchell116]

What's really weird is to stand on a golf course green and look back at that hole's tee box (c. 100 meters away) and hear the sound of the club hitting the ball AFTER the player has completed his swing. I've heard this many times.

[@Jeesus353]

I remember as a kid watching people across a sizeable field beat their rugs and you would watch them swing, hit the rug and get ready for another swing before the initial sound hit you.

[@michaelschramm1064]

One can just be in bleachers at a baseball stadium as I have as a kid, witnessing a full swing of the bat…and the delayed “crack”.

[@shawncon]

@@Jeesus353 one intuitive kid

[@mattd5147]

The most mind-blowing thing to me is that in cosmic terms, even light is slow. That's why we must go right to LUDICROUS SPEED if we want to to actually explore the universe.

[@davidhawthorne652]

HAHA going plaid.

[@BRKS1999]

Nothing can travel faster than the speed of light so get that idea out your head 😂

[@mattd5147]

@BRKS1999 Thanks Mr. Scientist!! You are very smart.

[@Ysae791]

Light isn't slow because time is relative. For a photon moving at light speed nor time nor space exist. A photon reaches any point of the universe within the same instant it is created. So if we were to move close to light speed we could cross the universe, in let's say 2 seconds while for people staying on earth countless billions of years would have passed.

[@feeberizer]

I live close to railroad tracks. I love hearing the Doppler Shift at night because the air is usually quieter and denser, and the effect is so much more distinct. Having the floor in my apartment jiggle like Jell-O because it's a silt river valley is also fun.

[@ben_mac8670]

Sounds like my cousin Vinny lol do you have a revolver too.

[@vomitedtoe7158]

@@ben_mac8670 ur weird

[@Bankable2790]

My family has some property adjoining a creek, along which we built a cabin on stilts. It’s probably 1000 feet from an interstate bridge crossing the creek, and when trucks hit the bridge you can feel it shake the whole cabin. The soil is like jello. This is a very large creek too, the bridge is probably over 100 feet long.

[@haydenlangei7905]

I love how this video isn’t packed with information, it’s a super easy concept that you could’ve explained in 1 minute but instead made a very interesting and comprehensive animation, great job

[@timpie9346]

A real-life example that fascinated me as a child, and whereupon my father explained to me the difference between the speed of sound and the speed of light: I was sitting outside our front door watching some kids playing soccer on the playground across the street when I noticed that the impact of the ball on the grass and the sound of it were out of sync. I remember to this day - almost 30 years later my father's explanation. A true childhood moment.

[@karlhans6678]

I was looking for such a video 2 years ago!

[@animationsxplaned8835]

Glad you found it!!

[@silver6380]

I had an interesting experience with the speed of light and sound at the age of 12 (or maybe 13 - it would have been one of two possible years). The casino my dad worked at was putting on a huge fireworks show, and he was able to get us in to see it, but we were watching from indoors, in a building very far away. I don't know exactly how long the delay was (should have counted!) but I remember being struck by just how long it took the sound to reach us after seeing the fireworks. It was at least three or four seconds, probably more. Of course I knew even then that light was much faster than sound, but it was very memorable to experience it in such a dramatic and "in-your-face" way.

[@Bendigo1]

I had a simmilar experience by watching a man chopping wood at a camp ground. I would see him hit the wood then a second or so later I would hear the chop. It was too much for my 5 year old mind to comprehend.

[@Timbo360]

That’s such a cool experience/introduction to that concept! When you see lightning, the amount of seconds determines how many miles(idk about the practice in metric) away it is. Only until a few years ago was I at home when I saw a massive bright flash of lightning, so I began to count. Before i could barely even get to HALF a second, I heard the thunder. Told my friend that it probably struck a few streets down from us. We went to check once the storm cleared and lightning had struck a tree a few streets over.

[@myofficegoes65]

@@Timbo360 It takes sound about five seconds to go one mile

[@Timbo360]

@@myofficegoes65 thanks, I forgot what the practice was

[@brunosavastano1851]

you don’t see fireworks too often do ya?

[@charlesash8053]

I subscribed to this channel for 2 reasons: 1) Your animations and explanations are clear and concise. 2) You use metric units in all your measurements, and you don't cause the rest of the world to want to gouge out their eyeballs from sheer frustration by using miles, yards, feet and other incomprehensible primitive imperial gobbledygook. Thank you for moving science forward.

[@animationsxplaned8835]

Hahaha yes, I’m Canadian so it’s just more natural for me! Thanks for the very kind comment!

[@melancholiac]

You ignore the simple fact that many of us Brits were educated in the imperial system and on road signs throughout Britain distances are still shown in miles.

[@Φωτό-ρ7π]

That's cuz not enough money to change all the signs and anything in the administration. A mars Rover nasa failed, way to go with the rover maker miscomm using imperial

[@ShwappaJ]

Your second reason makes you sound like a jerk tbh

[@jorgejoaquinpuentenovell3183]

The comparison between sound through the Golden Gate and light travelling between moon and Earth really makes you grasp the difference between velocities... All you'll ever need

[@PanDiaxik]

Even though light going around the earth 7,5 times a second seems fast, it is slow enough to cause noticeable delay in communication across the earth. It is impossible to get ping lower than about 140 ms between places in the opposite sides of the earth and in practise it's even more because light in fiber travels slower than in vacuum and you don't have fibers in straight line between every two points on the earth.

[@NGC1433]

Also the light is not travelling straight along the fiber, it is bouncing off the walls in a zig-zag or a spiral. There is also the helix factor - fibers inside the cable are wound around each other similar to the rope but not as steeply of course.

[@sbgaming7316]

It's also impossible to get less than 140 ping when playing on servers in the same country as you

[@Shade_Tree_Mechanic]

Don't forget about interconnects. They greatly decrease throughput

[@bzoned9808]

you can, by adjusting the ping programe to divide whatever ping it shows by 140.

[@Nosirt]

Light cannot travel at any speed other than light speed. Light in fiber don’t travel slower, they just take longer time because their distance is longer. Light in vacuum will travel straight while light in fiber will be traveling by bouncing in the fiber walls.

[@turmat01]

I learnt this as a kid when I saw soccer players play in the park from a distance. Sometimes when they kicked really hard you could hear the thump from far away. I could see the delay between the visible kick and the thump. Kindof like an apple falling on your head moment.

[@rjmakesanimations]

Well explained visually & great animation! 👍

[@youtubzer]

As a visual learner, until now I was never actually able to fully appreciate the speed of light, thank you!

[@rasmodeus1]

Back in the days of broadcast TV before the usage of satellites, a live broadcast of a singer would be heard by people in front of the TV before people in the back of the theater would hear it.

[@lookoutforchris]

No such thing.

[@Wmann]

@@lookoutforchris ?

[@vitesse_arnhem]

@@lookoutforchris Communist-sympathizing unionized public school teachers have brainwashed the entire population. Everyone wins a trophy. Impeach the bums!

[@anonymousbanana204]

@@Wmann kzbin.info/www/bejne/qJnKqHyed5prhqM

[@acer-star]

The background music is a great choice. Perfect animation documentary

[@michaellaw3943]

Easier example is to see a lightning bolt then hear it a few seconds latter.

[@OmarTheAtheistAziz]

yes, but i think it is over used, & always recited in an almost fixed & repeated sentence, that almost sounds like a clump of words...now that i think about it

[@susnojutsu2525]

@@OmarTheAtheistAziz It's overused because it's a great example that many people can relate to. Reaches audiences far and wide, and is easy to understand, and is true.

[@pedrofernandes4050]

Great job! I'm really surprised. This illustrates the difference between knowing and understanding. Because you understand the concepts, you are comfortable "playing" with the elements to show the information through different aspects. I was aware that some 9 mm bullets travel the speed of sound, and that light takes about 8 minutes to travel between the sun and back, but putting all of those in one place to compare 2 completely different speeds is impressive. When Richard Feynman said "Explain to me like I'm a 5-year-old", I think this is what he meant. Plus you used everyday elements like watching a plane or basketball from a distance. I wish you were my teacher growing up.

[@animationsxplaned8835]

Thank you! Its interesting you say that! I heard that quote when I started my channel and I only begin to write my script when I'm that familiar with the science! Its truly a clear indication of a deep understanding of the material and I'm very glad I was able to portray that to my viewers! Thanks for watching!

[@Kyuuwai]

"The closest visualization of speed of light is your movement when you hear your mom's car and you didn't unfreeze the meat"

[@tristanmoller9498]

Dude it’s like the music gripped me and made me want to discover what you were going to say.

[@buick1955]

Nice video. One of the best examples are fireworks . You see flash and then hear the sound .

[@EastCoastShorts]

Light travels faster than sound. This is why some people appear bright until you hear them speak.

[@xXArmageddon1382Xx]

LOL

[@daykilling9242]

bro stole the 12K comment and got 4 likes

[@Iactomeda]

@@daykilling9242 lmao

[@barrybebenek8691]

😂😂😂

[@DJandBiskit]

This video is pretty dope and its a shame there is only 5.5k views dude. Well done, and I'm sorry. Take a like and a sub as condolences.

[@glokdreamz]

Its has over 300k now..one day after you say this, crazy

[@dasarus]

@@glokdreamz 644k :D

[@V0ID_beats]

what the hell it has 736k now🤔

[@DJandBiskit]

I guess a single like/comment on a really old video bumps its relevance. Glad I could help!

[@markhunter3263]

One important difference though, is that the speed of sound is different depending on what it’s traveling through. It’s faster through water than through air, for example. On the other hand, the speed of light is a universal constant.

[@estranged12]

not anymore.

[@se-kmg355]

The speed of light is 299 792 458 metres per second in vacuum. You will get a different speeds depending on what medium it passes through.

[@mattd6085]

Swing and a miss there bud

[@tashfeenj8259]

Light moves slower in water too.

[@itsrasalhague]

Kudos to this channel. No "Hi guys, welcome back to my channel" kinda BS just straight knowledge

[@melancholiac]

It has always puzzled me that in all my years of schooling not one person ever remarked to me that the speed of light is pretty much exactly a million times the speed of sound. I think it's a handy rule of thumb.

[@davidhibberd]

So we can clearly notice that a plane has moved by the time we hear it, but I wonder how far it has moved by the time we see it. So I work it out: Say a plane flies overhead 10000 metres up in the sky, travelling at 250m/s, and using a speed of sound of 330m/s, so it takes the sound 10000m / 330m/s = 30 seconds to reach you, by which time the plane has travelled a very noticeable 250m/s * 30s = 7500 metres. And light at 300'000'000m/s, takes 10000m / 300'000'000 = 0.000033 seconds to reach you, by which time the plane has travelled a 250m/s * 0.000033s = 0.00833m, or 8mm. That 8mm is quite small, but not un-imagineable. Remarkable! It is also worthy of note that the speed ratio of sound to light is close to one million times.

[@lightningmb3321]

Bro needs to relax man

[@MrCrystal09]

@@lightningmb3321 no, they do not. This is what smart looks like, which we need

[@gianluca.g]

That's interesting. I never did the math because I'm lazy and I always thought that by the time the light reach me, the plane would have travel some micrometer or something in that ballpark. Instead, it's almost 1 centimeter which is quite a lot! So basically, when we look at planes in the sky, we are looking at "ghost images" of planes lagging 1 centimeter behind the real thing.

[@lazedimovski1342]

This is the first Chanel I instantly sign to after finish watching the video. Great job!

[@quebeh]

Underrated channel. Good effort, good explanation, good knowledge. Keep it up.

[@invisiblekid7374]

I remember my first time experiencing the delay in the speed of sound when I was a little kid. There was a guy using a metal shovel to scoop up crumbled up concrete and gravel. I was far enough away to visibly see the shovel hit the ground before I heard it, and I remember thinking wtf? Blew my little mind!

[@CadillacDriver]

No it didn't.

[@user-dh8oi2mk4f]

@@CadillacDriver ??

[@CadillacDriver]

@@user-dh8oi2mk4f "it blew my little mind". Yeah na, no little kid thinks that way about delayed sound.

[@AlwaysOnForever]

@@CadillacDriver maybe just you

[@CadillacDriver]

@@AlwaysOnForever You are gullible.

[@HalfDayHero]

Using a bullet to represent the speed of sound has to the most American thing I have seen in a long time.

[@ujwal4750]

This is an excellent animation man

[@animationsxplaned8835]

Thanks a lot! Thanks for watching!

[@ShafiqIslam]

From your 1.83K subs i started to follow you. Lets come back in 1 years and see how far you go. 😊 ❤️from🇧🇩

[@TWatcher_]

Same!

[@unknown69801]

you'd be dissapointed

[@issavibeyousee]

Correct me if I’m wrong, If light takes 8 minutes to travel from the sun to the earth, that means the sun we see in the sky everyday is always 8 minutes into the past. Since we can only view light the moment it reaches our eyes

[@johanjonsson6504]

yes, this means if the sun dissapaered right now, we would not now for 8 minutes.

[@issavibeyousee]

@@johanjonsson6504 oh I see, thanks

[@danielbush6882]

0:15 Actually, a better way to experience it is by seeing fireworks go off at a distance and then the delay of hearing them.

[@DarcyIsLame]

In Summary: Speed of Sound: I'm pretty fast Speed of Light: *NYYYYOOOOOM*

[@alexgrey5975]

Good video. I like the end with the basketball. We would go to concerts at the Forum and sometime we were at the other end with binoculars. Light waves were instantaneous but the sound didn't match what we saw. Good example in the video.

[@animationsxplaned8835]

Thanks!! Wow great example!!

[@stephenobisanya]

Absolutely incredible explanation.

[@CadillacDriver]

You are far too easily impressed.

[@howmathematicianscreatemat9226]

To be honest, I think much more people (including YOU!) would be able to come up with his explanation than to be able to program such a visualization software….

[@jonhogback783]

As an electrician.. I appreciate the screw right side up in the intro.. Thanks man

[@KinGlamour]

You can easily see the diference by looking at a storm. You will always see the light of the lightning first then after a while the sound of the thunder.

[@erynn9968]

Shhh let youtubers make their money

[@GardenDude1]

Only when the lightning is far away. When the lightning hits a tree in your yard, there is no distinguishable time lag between the flash and the ear splitting house shaking crack. But I do still count when the storm is coming in - about 5 seconds per mile.

[@doxielain2231]

The speed of light is actually really slow when considering the size of the universe.

[@josh9673]

@Just for playlists the closest stars are 4.25 light years away. Plus at light speed you get time dilation effects so essentially we could colonize hundreds of light years away without even needing to have children on the way.

[@Roger__Wilco]

From our perspective it seems slow on that scale, but to something actually travelling near the speed of light things are much different. What we're looking at is really the difference in how we experience time compared to those particles, it's more like we're observing the curvature of spacetime than the simple speed of light. If you were on a spaceship at speeds approaching the speed of light you could travel to a distant star in an hour while back on Earth 100 years have passed (just for an arbitrary example)

[@Frostyy]

Thanks KZbin algorithm for recommending me this video and making me feel all smart before bed time 🛏

[@maxdabrd7486]

Imagine a scary universe where the speed of light and sound were opposite. You would have to rely on what you hear way before what you see.

[@realityanalyst]

Daredevil: Hold my beer.

[@xajaynegix]

Speed of light and sound depends on medium in which they are traveling.

[@brandonmar3436]

This

[@danieljimenez3453]

We just can't imagine how large the universe is. When they say that our nearest star is "only" four lightyears from us it means that something that travels to the moon twice every 3 seconds reach it in four years... Crazy..

[@harryt988]

What a fabulous representation! Thank you for the great learning tools

[@kevin6293]

It’s wild to me that we are so far away from the sun that it takes 8 gd minutes for its light to get here.

[@drgregoryhaus]

This is the reason why we're so quick to judge with our eyes, instead of patiently listen with our ears.

[@snuggles03]

That was an absolutely fantastic animation, and the music was great as well. I’ll subscribe

[@animationsxplaned8835]

Thanks!

[@darkscienceyt]

Forget my channel, THIS is an underrated channel!

[@wowalamoiz9489]

You get a sub nonetheless

[@scrubblack]

cringe

[@wowalamoiz9489]

@@scrubblack Come back when you understand what that word means

[@scrubblack]

@@wowalamoiz9489 still cringe

[@wowalamoiz9489]

@@scrubblack Get some friends

[@evanmurphy5874]

this is applicable to track as well! my school can’t afford very good timing technology so we use stopwatches for things like the 100m dash. we stand at the finish line and the rule of thumb is start the clock when you see the guns smoke, not when you hear the gunshot.

[@sirmega6208]

Great job 👏 keep it up

[@animationsxplaned8835]

Thanks!!

[@gwiyomikim5988]

Kudos to the clever humans that precisely measured the speed of light. Before them, the best estimate for the speed of light was “friggin’ fast”!😉

[@DrDeuteron]

they used Jupiter's moons to do it.

[@T1M6]

It's videos like this that keep me glued to my chair ( not literally) when I should be doing household chores. ( Now should I have a coffee and watch some more ) 😊

[@cinnamonroll5865]

It always fun for me to remember that light is like the maximum for the universe, even if you had a superpower that allows you to move faster than light you cant even react faster than it because light has the information that your brain processes. You'd still be restricted to lightspeed and below, even with magic scifi powers

[@shiner_music]

As a musician i found this very offensive

[@loonapark8438]

LOOOOOL

[@maxbarko8717]

If I remember correctly, if sound could travel from the sun to earth it would take 14 years, compared to the 8 minutes for the light. So the eruptions we theoretically could hear would have appeared 14 years ago whereas the sun we see is 8 minutes „old“.

[@jeancorriveau8686]

Light is much faster than sound because photons possess zero inertia. They require no force to move because it is its own force through the electromagnetic force. This implies (1) photons have no mass, (2) light maintains a constant velocity regardless of the orientation of its trajectory or reference frames. Finally, the electromagnetic force comes from the fabric of space itself.

[@xlynx9]

Can you please elaborate on "the electromagnetic force comes from the fabric of space itself"? Is this another way to say electromagnetism is one of the fundamental forces?

[@jeancorriveau8686]

@@xlynx9 Yes. Also, gravitation can't be a fundamental force because it is generated by matter, that is, something inside space, not space itself. Studying Feynman's quantum fields made me understand.

[@xlynx9]

@@jeancorriveau8686 but electromagnetic energy does come from matter inside space - electrons lose energy when they emit a photon.

[@IsraeliDino]

2:13 "It would take like, 8 minutes" Hahahaha I know you said light but that caught me off guard as you were very serious and straightforward throughout the whole thing hahaha

[@gordonho5986]

wow I really appreciated the closing with the example at the court!!

[@stuartsiglain3972]

I just love all the scientists commenting. Light travels 186,000 miles per SECOND. I think that is pretty fast.

[@Pez1979]

Another great example of this is when watching Fireworks, you'll often see the flash of light when it explodes, followed a few seconds later by the sound of the explosion. The further away from the explosion you are - the longer the delay between the flash of light and the sound.

[@BING195]

Thanks youtube for recommending this MASTERPIECE

[@animationsxplaned8835]

Haha love it! Thank you

[@Gean...de...Oliveira]

I love car racing and you can clearly see the difference in those videos recorded by distance from the side of the circuits. Sometimes the car is visually braking and taking the corner but only a moment after the deceleration sound starts. The image is clearly ahead of the sound.

[@lunarzion]

A great example of this is watching a fire work from far away. You see the explosion much sooner than when you hear the bang.

[@grass.avoider]

Another good example is a catcher catching a pitch. When you're watching from the outfield, it's the sound is noticeably delayed

[@skeltonjack55]

I thought this was amazing! The entire time I was thinking about a time when I was a kid hiking some mountains with my dad and he stayed back a distance and threw a big rock down to the ground to demonstrate this.

[@mobidick6064]

Lightening comes before sound is the best understanding I've been thought

[@xsAMOR]

In video you showed us speed of light going from earth to sun and back. In one direction it takes 8min20sec, together 16min40sec - but video is only 3:01 long?

[@rourkewhite4858]

the caption said the timing of that specific part was not accurate

[@theauggieboygamer9148]

This is also why thunder happens after the lightning, and why you can calculate the distance by the delay between the two, or why when watching a fireworks show the sound seems so delayed compared to what you’re seeing

[@TitaniumBaalak]

Lots of love from India 🇮🇳💕 New subscriber

[@AftabAlam-yw4eq]

Another fun fact A human ear can only distinguish two sounds if they are 0.1 seconds apart. Sound travels at 340m/s, in 0.1 sec sound travels only 34 meters. Therefore to create an echo, a barrier or wall has to be atleast 17m away. 17m to go and 17m to bounce back, a total of 34m and travel time will be 0.1 sec so you will hear an echo.

[@coolsoundsoftom4090]

I was playing electric guitar in a band using a wireless rig. The venue was longer of a room than wider. I walked off stage and made my way to the back of the room. What happened was I had placed enough space between me playing the guitar and hearing my amplifier, that it was noticeable. From my perspective everything was fine . I was hearing it OK and having fun playing a solo while people were milling around. From the band's perspective it was all messed up. The sound of the band is delivered to me at the back of the room at the speed of sound. I'm responding by delivering my chords and solos with a wireless transmitter, which operates at the speed of light. I didn't see any problem at all. When I got back to the stage they said they would murder me if I did it again.

[@MyNameIsCam]

In my opinion, watching a firework display from a distance is the perfect example between the speeds of light and sound.

[@animationsxplaned8835]

Hey thanks for watching! Great comment! I chose to not use fireworks for several reasons, firstly, I find fireworks and thunder overused. Secondly fireworks are difficult to animate, and thirdly, I find it uncommon to be close enough to fireworks/lightning to not experience a delay whatsoever! This is why I chose to use a basketball!

[@tastyambergers9327]

You can tell the speed of light is way faster than the speed of sound because while it takes just over a second for light to reach the moon from earth, sound would take like, forever to get there.

[@Roger__Wilco]

Not true, I've watched all the Star Wars movies and clearly sound can travel in space

[@kbxbrdr]

As soon as the scale went from the Golden Gate Bridge to the whole fuckin’ planet, the visualization of the discrepancy was a success.

[@Mike0193Azul]

Fantastic lecture and animations

[@akhenatenuhuru7695]

Now I’m a teacher. Thanks man good video. I like it.

[@jackpazin6159]

A great example of this is watching a track meet. When the starter fires the gun, you’ll see clouds for a bit and hear it later.

[@bryansanchez8158]

I'm always amazed about how something like light, omniprescent, almost in a magical way, actually has a finite speed. And in the scale of the whole universe, it is slow. Such a whacky but fascinating thing, light is.

[@Roger__Wilco]

It gets way more fascinating when you think of it in terms of special relativity. Light seems "slow" relative to the size of the universe when observed by us from our position in spacetime, but from the perspective of photons coming to us from the sun for example it's travelling in an instant while we would measure 8 minutes passing in that time. That 'finite speed' is actually the point at the curvature of time and space where measurable time itself almost ceases to exist, that's the limit that it's hitting and why it can't be passed.

[@mattd6085]

@@Roger__Wilco To a photon, the universe 1 dimensional. All points can be reached with no time passing. Fucks with my head

[@DustinPlatt]

"The speed of light is nearly instantaneous" _Light travels in space_ Light: _out of breathe_ FCK this shit is big

[@VikingerOnYT]

Lovely, informative video!

[@BioChemistryWizard]

Wish more videos were like this. Nice to not have bs.

[@EdinMike]

You coulda just said “imagine a thunderstorm… you see the lightning before you hear the crack of thunder”

[@johngibson7023]

I think fire works would be really easy to show an example of the speed of sound

[@cheesecake1255]

Ok but can we talk about how our eyes can be so wonderful that can see light at real time and always also transforming it to make a 3d space or something like that idk

[@moos5221]

Lightning strikes during thunderstorms and fireworks (or other explosions) are the best examples to visualize the difference between the speed of light and sound.

[@matthewmadden7455]

Fireworks are the best teacher on the delay between light and sound. You always see the firework first then hear the boom.

[@timn4481]

excellent job of showing the two.