This Is Not a Shockwave
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- Опубліковано 2 жов 2024
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Credits:
Writer/Narrator: Brian McManus
Editor: Dylan Hennessy
Animator: Mike Ridolfi
Sound: Graham Haerther
Thumbnail: Simon Buckmaster
[References]
[1] aerorocket.com/...
[2] www.weather.go...
[3] www.zehnderame...
[4] www.grc.nasa.g...
[5] / 1300787794793713664
[6] large.stanford....
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Thank you to AP Archive for access to their archival footage.
Music by Epidemic Sound: epidemicsound.c...
Songs:
Thank you to my patreon supporters: Adam Flohr, Henning Basma, Hank Green, William Leu, Tristan Edwards, Ian Dundore, John & Becki Johnston. Nevin Spoljaric, Jason Clark, Thomas Barth, Johnny MacDonald, Stephen Foland, Alfred Holzheu, Abdulrahman Abdulaziz Binghaith, Brent Higgins, Dexter Appleberry, Alex Pavek, Marko Hirsch, Mikkel Johansen, Hibiyi Mori. Viktor Józsa, Ron Hochsprung
for the blue light, LOOK FOR Cherenkov radiation. It's when charged particles move faster than light through a medium ( in nuclear reactors it's water). Though, when we say "nothing is faster than the speed of light", it is true, in a vacuum like space. Light can be slowed down when travelling through different mediums like water, making this possible. In water, light travels at 75% of it's vacuum speed.
Let's get this to top comment so we don't need to get Nebula.
I was kinda annoyed that he didn't mention the Cherenkov radiation by name for those who are interested to look it up. Forcing to watch an another video of his for an explanation isn't the way to go.
Thank you for pushing for free and avaliable information for all!
MVP comment
Don't educate people with FACTS. Who knows where that will lead!
When aerodynamics are more interesting than a movie:
Aerodynamics* 😘
As someone who hasn't watched any movies in years : isn't that the case always?
@@BenBike oops hahah
It's nice to watch those films that use realism for drama instead of trying to gain drama through unrealism.
To be more specific *gas dynamics
"Many of you will be looking at the screen with a raise eyebrow right now"
I feel personally attacked
Light travels slower than "the speed of light" when it's moving through a material, like air or water, so it's possible for other things(like electrons) to move faster than it.
en.wikipedia.org/wiki/Cherenkov_radiation
What we commonly call the speed of light - the universal speed limit - is actually the speed of causality. Light just happens to travel that fast when it's in a vacuum and there's nothing to slow it down. We call c the speed of light in large part because of the order in which things were discovered and named, iirc.
Same. And I continued to have a raised brow until "...in water." Oh, yes, okay, that makes perfect sense now.
I felt less attacked, and more confused as to how he managed to see my face.
This video is the epitome of the "well ackchyually" meme
@@WulfgarOpenthroat Thank you for that, saved me from having to make the same explanation. Which would have been almost word for word like yours :)
This is a vintage type of real engineering video 😍 pure technical stuff explained to the point!
And I love it so much
@@DyslexicMitochondria your username made me click on your profile. Your channel is a hidden gem bro
Really? Where? All I saw was a teaser and ad for nebula
But wrong.
@@cobeer1768 , exactly! 🤭
The Cherenkov radiation tease is brutal…
Yeah, doesn't even tell you its name, as if nebula is the only way to understand it
Каких ещё черенков? 🤭
@@IdunRedstone Fair I guess, but I drop YT subscriptions when the YT content becomes little more than an ad for their Nebula content. Don't want Nebula, never going to buy Nebula. I don't mind a prompt at the end, but a nasty tease at the end just seems mean. That's not why I follow educational YTers. If they can't make it work on YT, that's fine. Stop. I'm not owed a YT video. But don't rub my nose in the fact that I'm missing out on even better content.
@@IdunRedstone To be fair, UA-cam has faaaaaar more content than Nebula.
@@Kyle-gw6qp And also faaaaaar more viewers. Point is way more of those viewers would pay for YT premium if it was cheap and not more expensive than even disney.
"Faster than Light"
Me: Lies, deception
Well, slower than the speed of light in a vacuum, but faster than the speed of light in water.
*IMPOSSIBRU!!!*
@@fnorgenThat's what I was thinking he meant. Very cool.
en.wikipedia.org/wiki/Cherenkov_radiation
Faster than the speed of light through a material, which is slower than c, the speed of causality and universal speed limit.
@@WulfgarOpenthroat Relativistic causality*
Great video. As a former aviator who flew the Hornet, I appreciate the clarification of the principles at work. One correction... 2:40 “If we were at 100% *absolute* humidity..”. Absolute humidity is the amount of water vapor per volume, and is independent of the temperature/capacity for the air to hold more vapor (i.e. 5G/m^2) Any time we refer to a percentage humidity, that is, by definition, *relative* humidity.
I was just about to say the same things.
Ah, you flew a Hornet, cool. Another Clarification, the jet has entered the "Sound Barrier" as indicated by the Supersonic Flow of the Vapor Cone, where water condenses across Supersonic Expansion Waves and evaporates across the Wake Shockwave. The second Boom of the classic boom-Boom forms first as the "Sound Barrier" is entered. The back half of the aircraft is flying in the Supersonic Bubble of the Sound Barrier. So, there actually is a Boom that is finite, circular, and grows to infinity at Mach 1, where the first boom forms. boom-Boom.
Hey when you break the speed of sound can you feel anything at all?
@@WeBeGood06The vapor cone can form and be visible even if the jet is flying at subsonic speeds. All that is needed is for the expansion zone to have a sufficiently low pressure that water in the air becomes super-saturated and therefore condenses as visible micro-droplets. Higher humidity ambient air requires lower jet speed to produce this effect.
I see I'm commenting on almost exactly the same thing, a year later. It's odd that the narrator made that weird error.
This video was inspired by a Twitter thread by Dr. Chris Combs, a professor of hypersonics in UTSA. He also helped me research for the X-15 video.
Also, the saturation explanation is not strictly accurate, but it’s easier than explaining that the balance of evaporation and condensation changes. Don’t @ me meteorologists
Twitter has did something good
Twitter is class. Just follow cool people like hypersonics researchers.
Amazing work! Would it be possible that you made a video about the new and insane next gen drones the USAF is developing (mq-25, XQ-58 Valkyrie…) ??
@@RealEngineering Twitter is a festering cesspit. A blight on humanity.
@@kirkc9643 Something of an over-generalization, IMO. Kind of like saying humanity is a blight on humanity. Wait... nevermind.
Real engineering videos be like
"if this is not a hot dog: what is it? To answer that question, we need to talk about the industrial revolution..."
... and subscribe for Nebula 🤭
And sub to nebula
And buy nebula ffs it's so annoying I'm not paying for that shit sorry
I love this channel! If I wasn’t a broke medical student in hundreds of thousands dollars in debt, I’d sign up for nebula in a heart beat! Hopefully in the near future!
nobody cares
@@elena6516 Nobody cares about your comments
@@elena6516 I hope you have a wonderful day!
@AkkiSciChannel The truth is, nobody truly cares about anyone but themselves.
Do you ever have to pay off student loansthe US? In the UK it's very rare anyone pays off any decent amount
Nebula needs comments. Half the fun of UA-cam is the comment section. I won’t be renewing.
The ending of this video sounds a lot like "Have you heard that modern science is completely wrong? Come give us money to get the ACTUAL TRUTH!!!""
It's a bit of a teaser to promote Nebula but he's not lying
@@truthwatcher2096 I know, I generally have a lot of respect for their work but teasing with such a misleading statement, that is only true with an added context, and hiding the answer behind a paywall, was too similar to the behavior of clickbait and scammers for me to be silent. ¯\_(ツ)_/¯
@@JeremieBPCreation yeah exactly kinda scummy ngl it's very misleading but thanks to the great guys in the comments I learnt what he really meant
"If we were at 100% max humidity"
so Florida then
Or the coast of Central and Northern California during summer.
Does anyone know the difference between an introverted engineer and an extroverted one? An introverted engineer looks at his shoes when he talks to you. But, an extroverted engineer looks at your shoes when he talks to you.
I honestly love hour long videos and when they are good, they're a gem when I find a good one on UA-cam!
Sadly, that is not really the point. Of course it's great that you love videos like that. I do too.
But from a creator perspective it is just so much more effort to create a video, just for UA-cam to not really suggest it to viewers.
In the end it's literally more effort for less of a reward (less views), so it really does not make sense for creators.
@@marvihaemmer99 yeah I fully understand stand
Love the video. Just a quick note: clouds and the like aren’t made of visible water vapour; as gaseous water is invisible. These are examples of condensed water in liquid form, as tiny micro droplets, small enough for gravity forces to be small relative to other aerodynamic forces, keeping these micro droplets aloft as fog/clouds. Cheers!
Wow, very interesting point and the only comment worth reading
Yes, I spotted that too. Wasn't sure if it was a slip of the tongue or not.
I'm also pretty impressed that he had the courage to quit his day job before even uploading a video. And it's getter braver as UA-cam seems to delete more and more channels it doesn't like for no clear reason, even when they don't breach the terms of service which are deliberately vague.
@@michaelhart7569 Can't let the simple Truth slip out, can they. lol
So what we see is the sudden density change? Intriguing...
"Many of you will be looking at the screen with a raised eyebrow" more like a confused squinting face but yes 😂😂
This is the difference between googling something with no knowledge and actually being a smart student. Great video!
Not sure I would say that, he just doesn't know where to look to see the Shockwave in all those images. Because you can see the Wake Shockwave in most of those images. It's where the cloud evaporates as pressure and temperature increase across the supersonic flow returns to subsonic flows. The base of the cone is a visible shockwave.
@@WeBeGood06 , cannot the cone appear without the aircraft going supersonic? 🤔
@@konstantin.v The cone appears before Mach 1, it is supersonic flow. The tail of the aircraft flies supersonic before the bow of the aircraft. The cone are the Expansion Fans or Expansion Waves of the Sound Barrier. The top of the cone is the Wake Shockwave. The Nose of the Aircraft is the last part of the aircraft to fly supersonically.
@@WeBeGood06 , thanks! It makes sense. I was just wondering if those cloudlike protuberances can appear without anything going supersonic at all. After all, the plane does alter the pressure around it as it flies even when everything is subsonic 🙂
“15 minute is too long for UA-cam algorithms” says no one with a successful UA-cam channel.
I agree that "the algorithm" is a shitty excuse, but ya gotta wonder how much money are they making from nebula then? It has to be worth their time to make longer videos exclusively for that platform.
Ironically it just turns me away from Nebula / CuriosityStream more and more when content creators cut their videos short so that they can have an extended cut on another platform I hardly had any interest in to begin with. Doesn't help that said content creators constantly shill the same few services (Skillshare, Nebula etc.) to the point where even hearing their name can be annoying.
Yeah, it just annoys me when creators cut big parts of their videos to make Nebula versions better - especially when they then spend the time talking about Nebula 🙄
What he said was 1hour is too long for the UA-cam algorithm so it will be broken up into segments
Literally split it into 15 minute segments and upload them once a week until the series is finished.
"But it's 52 minutes, not 60".
Perfect! You have 8 minutes to place ads.
"Cherenkov effect, could happen with minimum radiation."
Outstanding explanation. I've known this for years, but it's refreshing to see it explained so thoroughly and simply. Nicely done, as always. :)
So happy for this video. I’ve known all along it’s not a sonic boom, but it is such a “common knowledge”.
One thing! Just one thing! Please tell IT to me: WHY tf do I have so many fans even though no UA-camr is unprettier than I am? WORLDWIDE!!!! WHY??? Tell me, dear dav
Cherenkov radiation isn't something new. But just saying that these particles move faster than the speed of light within a medium, does not help in making people understand, that the speed of light within a medium like water, is significantly lower than that within a vacuum (300.000Km/sec)
5:10
Electrons traveling faster than light...
in water
Isn't the vapor caused by a drop in pressure, rather than a drop in temperature???
Not, the condensation don't happen if you decrease pressure whiteout a decrease in temperature, but a sudden decrease in pressure reduce the temperature too.
@@theOrionsarms ahhh. So the reduced pressure causes reduced temperature, which causes the condensation, is that right?
@@joshsvoss this is the correct explanation.
So, it's not a sonic boom shockwave, its... the result of the sonic boom shockwave? That feels only a step removed from saying you're not seeing an object, you're just seeing the photons that reflected off the object.
Ayy I love yer vids! When i go to college you will be my first Patreon (fingers crossed)!
Same for me, I hope. I would say students are the most interested in these topics. And it definitely helps us in our STEM subjects. However, we are all mostly broke and unemployed if you think about it.
@@abdulmuhaimintahseen7710 Hey, fingers crossed! We'll make it through buddy!
Just signed up for CuriosityStream and Nebula with you code! Excited to start learning 😁
As a Guile player I do appreciate you finally clarifying that those are not sonic booms.
*Guile theme intensifies*
Is Guile a video game?
@@jeffbenton6183
No, it's a movie .
@@jeffbenton6183 Guile is a character from the arcade, and later console/PC videogame franchise 'Street Fighter'.
SONICCU BOOM
5:00 "A shockwave that occurs when something travels faster then the speed of light"
5:02 me: proceeding to raise my eyebrows
5:05 "many of you will be looking at the screen with a raised eyebrow"
....Damn he knows his chickens
Not a sonic boom? I guess we'd never know the secrets of Guile of Street Fighter!
Guile’s hair was completely out of Air Force regs too.
@@sircrapalot9954 exactly.haha
A sonic boom will be followed by a condensation cone, but the opposite isn't always true.
You can also check footage of big explosions, where massive shockwaves are created and followed closely by a wall of condensating water droplets
My Google Assistant activated like 3 times during this entire video...
Impeccable timing. I was at an air show today and got to see several of these cones.
Thank you! I would ask how sound waves could have a visual manifestation like that and was always told I was wrong.
5:34 "All ads are cut from the nebula version"
Me: *sips tea with adbocker on*
*while watching an ad for nebula
I've never seen a crueler mind teaser than this.
It’s called Cherenkov radiation. There, I just saved your personal information from being sold.
I tried to explain to my friend (who is in the air force) why these weren't shockwaves about a year ago and failed to convince him. Now I can just send him this video :-).
Winning feel good.
5:00 what about the shockwaves from a far away explosion? You can see that clearly in videos
Yes, this is what I was also thinking.
What you see is the effect of the shockwave on objects and particles in the air
You should lookup the taylor neumann sedov blast. Especially the pressure distribution. Although the pressure spikes momentarily after the shock, it decreases below the ambient pressure. Resulting in the condensation of vapour
@@JCisHere778 i mean those explosions from myhtbusters or i donno, you can see a clear line in the blue sky travelling away, is that also condensation?
@@MrAlexs888 Maybe it's an effect like a mirage?
I'm not sure if I agree with you about the visibility of water vapor. I thought that water vapor is allways invisible. When we see clouds what we are seen is condensed water vapor which is not water vapor anymore, but very small liquid water particles. Being then so small, they difusse light, and thus we see them as a white cloud. Please correct me if you think I'm wrong
LMAO at 60 minutes allegedly being too long for the UA-cam algorithm when Noah-Caldwell Gervais easily picked up 400k views for his latest 7 and a half *hours* long video 😂 If you make great content and people like watching it, that’s all the algorithm cares about.
My physics teacher: light is the fastest in universe.
Smarter every day: neutrons travelling faster than light.
Me: i have been betrayed😤😤
Electrons, traveling faster than the speed-of-light-through-water, which is slower than the speed of light through a vacuum, which happens to be c, the speed of causality and universal speed limit.
en.wikipedia.org/wiki/Cherenkov_radiation
Light isn't the fastest thing in the universe, it just happens to travel as fast as it's possible to go when in a vacuum, and there's nothing to slow it down; they've actually managed to slow light down below walking speed when passing through certain super-cold substances in a lab.
@@WulfgarOpenthroat thank you very much, i learned a lot from you
Is it a tempature charge? Or is it because of the pressure difference? Kind like how propeller cavitates in water
It's both. In a gas, temperature, pressure and density are all linked. If you decrease the temp, the pressure must decrease with it, and vice versa. And relative humidity depends on both temp and pressure.
When pressure decreases temperature also goes down
Thank you! I’ve been telling people for years that these hundreds of phots were not all taken “just at the moment when the plane breaks the sound barrier” as captions insist. I kept insisting on water and mentioning ionization chambers, but nobody listens
4:05 the shuttle mission in question is STS-70, and at 5:09 light takes a longer path than the electrons, enabling them to take a shortcut and “appear” traveling faster than light.
They are travelling FTL through the medium. In this case water
2:21 mount Sassolungo (Dolomiti-Val Gardena, Italy)
This has been the most compelling ad for nebula I've seen
For real. I might actually get it now
I totally agreed. I'm going to subscribe.
A very good examples are explosions in humid conditions such as Beirut explosion
I'd say the many recommendations Tom Scott got for his copyright video (35min) counters the argument of an 20min video being to long.
The man said 60 minutes is too long, not 20.
Super cool physics based animation
THANK YOU for teaching me a new thing today !!
Fyi: sound speed of 340 meters per second is 760 mph.
That stuff you see rising from boiling water isn't water vapor. Water vapor is an invisible gas. What you're seeing is a cloud of liquid water droplets.
PLEASE DO AN EPISODE ON THE DIFFERENTIAL/ANALYTICAL ENGINE - THE MECHANICAL CALCULATOR
That sounds like it would be interesting. Just like the mechanical ECMs that BMW planes had during ww2
I love your all videos and and your Space and Energy Playlists
2:25 relative humidity not absolutely humidity
Sorry annoying but wrong is wrong 😉
I wish Nebula could make a deal with amex that way we can pay for it with our entertainment credit
i never knew this, Thank you for explaining!
Longer videos are actually surprisingly better. Spiffingbrit explains it but essentially his best performing video is a live stream vod and not his 20 min videos that are highly edited. Also being the channel yours is wouldn't people watch longer? Then again idk if a series would outperform a longer video like that :)
"Electrons travel faster than light" - my reaction: and...? - he didn't say electrons travel faster that the speed of light in a vacuum.
Jet planes thinking - mmm, so much science for my fart?? 🤔🤔🤔
It can be seen on the wing tips of F-1 cars when racing on tracks such as Spa-Francorchamps. Amazing video Brian. As always an awesome job. Greetings from a Brazilian subscriber.
Not really at all comparable to a jet traveling in a straight line forming these particular type of cones that absolutely ARE formed from air moving at transonic speeds. It happens when you have large pressure differentials from air traveling at very high speeds, like on the backside/end plates of an F1 wing, or behind a transonic shockwave forming around leading edges of a fighter jet. It can happen subsonic but doesn’t mean it doesn’t also happen with transonic air. Saying this cone isn’t ever visualizing a transonic shockwave is a dumb semantics argument. Which engineers love to make all the time.
I didn’t think it was a sonic shock wave. For one thing, it looks like water vapor. And I’m not even an engineer.
Since the speed of sound depends on pressure, and the sonic shockwave has very high pressure - does this affect each other somehow?
the speed of sound depends purely on temperature, which is proportional to the ratio between pressure and density. Shockwaves always result in an increase in entropy, which can sometimes manifest as an increase in temperature, which can affect the local speed of sound.
I was trying to remember the explanation for this effect - I’ve just watched 6 “short” videos. All were “meh”. I should have not bothered- it was obvious that a real engineering video would trump all the others out there - and gone straight for it - thank you !
4:58 made me laugh more than it should’ve. I had both eyebrows raised when you said that 😂
For some reason, the first image that came to me when I saw this was a lab, sitting at my side, patiently watching the video with me. And periodically raising an eye brow.
Dude that open editing was amazing
Why does the temperature decrease with a pressure increase?
Other way around, temperature decreases with pressure.
@@polarisbear7468 so does the pressure behind, let's say the aircraft, decrease because at the front of the plane there is a pressure increase so behind it there is a decrease. So with a pressure decrease behind the plane there is also a temperature decrease.
@@polarisbear7468 I've just rewatched the video and have realised that the video is that it is not a shockwave since a shockwave is an increase in pressure. And for some reason I got confused and thought there was an increase in pressure behind the plane. However, it is an expansion fan that is created which leads to the pressure along with the temperature.
It does not, the area behind the pressure increase decreases in pressure, correspondingly decreasing temperature.
Technically we can never see water vapor because vapor means gas and water gas is invisible. Once it condenses it's no longer vapor.
what about seeing a shockwave from an explosion though?
You can still only see it because of light distortion.
The cubic metre is the SI derived unit of volume. Its SI symbol is m^3 and it is read as, "cubic metre".
Teachers like you teach and do the world good, lesson taught is mostly understood!
Can you explain how an AutoGyro works? I find it unique yet fascinating mechanism. Thank you
This is just a glorified ad for nebula
The blue flash is called reactor pulsing, I’m fortunate enough to being funded to perform research on this phenomenon at Texas A&M right now.
Huh? The blue glow is called Cherenkov radiation. When charged particles move through a fluid faster than light can propagate in that fluid.
@@Killua2001 that’s what causes the blue glow, the reason you see a flash is pulsing, the transient control rod is fired out of the core via compressed air when the reactor is producing power at a low level, this causes criticality for a fraction of a second before the rod is fired back into place
This 5 minute video taught me more than I learned in the last week.
Then you're learning wrong
@@jackbequick Pov: You look in the mirror: 🤡
waiting for the chem-trail conspirators to invade...
Why does that triangular vapor fan always occur when the aircraft fly a specific speed and when the vapor fan move from nose tip to tail there is always that boom as loud as a bomb explosion?
I need Imperial measurements!! Damn your meters!
My eyebrow wasn't raised, as I had no idea what was being said anyway... But I did have a go at a raised eyebrow after it was suggested...
my man just tired of hearing at airshows "there was a sonic boom without a cone, no big deal" and dropped a video demolishing them
Cheryenkov Radiation or something like that, involves the relative speed of light in substances like glass or water compared to air.
Cerenkov
5:00 I feel called out 😂
Badly explained and 20% of the video is an advertisement, unsubscribed.
Got to love when the first video in nearly two months is 1/3 advertising. 😕
I always had this strong hunch that this can't be sonic booms. Because we can't see air waves! Thanks for confirming 👍
2:06 Are you sure about this? Explosions sometimes have a visible shock wave due to light refracting at the edge of the wave. I always thought that a shock wave from an explosion and from a supersonic object is basically the same phenomenon.
0:09 THIS IS A SHOCKWAVE, it is the Sound Barrier. The first Shockwave Sneaks up from Behind in the Wake of the Aircraft as it pushes into the Sound Barrier. Clouds form in the Expansion Waves in Supersonic Airflow associated with the Sound Barrier. The Clouds remain until it enters the Wake Shockwave at or behind the tail of the Aircraft, where there is an abrupt increase in pressure and temperature causing the Cloud to Evaporate. The Cloud is Evaporating in the Wake Shockwave, which forms before the Bow Shockwave at Mach 1. It will becomes the second Boom of the classic Sonic Boom-Boom of an Aircraft flying at Supersonic Speeds.
Do not amputate your videos just to plug your streaming service! I hate saying this, because I like your channel, but you can't make a 7 minute video where 2 minutes of it is an ad. I mean other youtubers do this but it's not an excuse
pretty cool video :)
but if I may, this is not vapor. You can never see vapor as it is a transparent gas (aka humidity), although what we see above boiling water and in any other cloud-like types of waters is condensed liquid water due to -as you said- having more than 100% humidity in the local pressure/temperature environnement.
so you guys just care about money, exclusively, max 30minutes for the algorythims?
SOMEONE pirate their shit NOW!
Before this video: "Sonic booms look so cool!"
After this video: "Vapor cones look so cool!"
LOOK I want to subscribe to Nebula but until European payment processors get added I will continue to pirate everything from the site.
I've actually been considering looking into Nebula/Curiosity Stream.
But trust me - the coercive tactics being used at the end of this video are NOT the way to encourage people to move to that platform!
I strongly encourage Real Engineering and other UA-camrs to avoid this approach. I think it will be completely counter-productive.
Is the temperature drops because in those areas the pressure is low?
Ummmmm. You and I learned different on this. A shock wave in what creates the condensation cone. Remember you can have supersonic flow over parts of the aircraft at subsonic speeds. This is your next video. There are videos online from passengers that show the shockware along the wing of airliners in while in cruise. Great video for something to look for for people who fly. I've seen it, its amazing. In fact a video of top 10 things to look for next time you fly would be awesome. Supersonic flow to all the different types of contrails (air condensing) that can be seen in different stages of flight.
It's misleading (though perhaps not incorrect) to say the electrons travel "faster than the speed of light", it would be less so if you'd simply say the electrons travels faster than light, or faster than photons.
Guile wasn't in it. So obviously it wasn't a Sonic Boom. I'm a 90s gamer type of dude.
I’m sorry but I think this is an incredibly foolish argument.
1. Any video you see of a jet forming these specific vapor cones ARE traveling in a straight line at transonic or near transonic speeds. At which point the air moving over leading edges would in fact be transonic. If this is incorrect find me a video with audio where an aircraft is traveling in a straight line forming similar vaporcones.
2. Yes air condensation can happen at subsonic speeds when large low pressure areas occur. That doesn’t mean it doesn’t also occur behind a supersonic shockwave. The vaporcones are clearly visible across multiple points of the aircraft where it is know that shockwaves occur.
3. This is just a semantics argument and a poor one at that. It’s sort of like saying the orange visible glow of fire isn’t in fact fire it’s just an effect caused by the heat. Which is fucking ridiculous.
You are really pedaling your paid subscription stuff. This used to be a cool
Channel. RIP