Most elusive solar eclipse of the millennium

[@InventorMaxworks]

I'm actually really digging the direction the channel is going! Went from silly CS projects to interesting science education videos (with some computer science sprinkled in).

[@InventorMaxworks]

*silly in a good way ofc haha

[@y2kona]

same

[@tekbox7909]

@@InventorMaxworks Yeah I love the direction but I do kinda miss his evolution stuff that he made and commented. (I say while the only thing keeping me from making it myself are me being lazy and the lack of fun commentary)

[@mattbob8725]

Real OGs remember the marble races

[@y2kona]

@@mattbob8725 i remember

[@George_vv]

I remember when the total eclipse happened in 2017 it was supposed to pass over the city I live in. My school put us on lockdown so we couldn't see it and all we could do is look down (it was a two story school) at the awful principal and vice principal watching it and taking selfies together. It also sucked because all the teachers cleared the class schedule for the day so we had nothing to do and were not allowed to leave for even emergencies. As soon as it was over we were let out of lockdown. It was also the first eclipse I knew about before it happened and I was really excited to see it. I hate that school to this day.

[@tekbox7909]

What the fuck kinda teachers and school did you have?

[@hoveringgoat8061]

@@tekbox7909 Oregon education is REAL bad.

[@AndUwU]

I remember being super psyched for that eclipse as well but our teachers all had us stay inside as well :(

[@ggtylerr]

DUDE SAMEEE ok i didnt get a lockdown (thats fucked wow) but IIRC there was both rain (in a desert!!) and i was in classes w/o any windows. same thing basically happened with the recent lunar eclipse - it was way too late for me and when i got up for 5 minutes it was too cloudy. there will be that annular eclipse next year and a total one after that, so hopefully we'll be able to actually see them!

[@Slackow]

I've heard stories of things like this happening, it's because they're worried a kid is gonna be blinded by the sun when trying to see the eclipse. Which is a genuine concern. I can't really think of a good solution to this that doesn't run a sizable risk of a kid not listening and blinding themselves. It still sucks though.

[@hsviabgsjsbsjsbsn]

Cary's videos are always cool to watch :)

[@ben9583_]

Very cool video! Sounds like an awesome experience to have had and comes with an interesting conversation about eclipses. Also love the camera setup haha

[@Tracequaza]

"Which is rarer than how often I change my bedsheets, okay, that was a joke" 5:28 wait so you change your bedsheets LESS often than the occurance of a new type of solar eclipse??

[@hoveringgoat8061]

hey cary been a long time enjoyer of your random vids. I know you've been busy but it is nice to see videos popping back up into my feed. Just wanted to say its enjoyed and appreciated. Hope to keep seeing them pop up every so often

[@nok9355]

Yeah same

[@buysharp]

im totally a geek to everything posted in this channel. great video as usual

[@EnergySurge]

8:23 "... make the inclination 90 degrees which basically tilts it up on its side like the planet Uranus" No, that won't be like Uranus. You're comparing orbital inclination to axial tilt. Yes, Uranus's axial tilt is 97.77° with respect to its orbit. But this makes it appear to rotate sideways, not orbit sideways. Uranus's inclination is 0.773° to the ecliptic, 6.48° to the Sun's equator and 0.99° to the invariable plane. All the planets have fairly similar inclinations for all three of these reference planes. Earth is 0, 7.155° and 1.57°. This is why all the planets orbit roughly in the same plane. When "all the planets" included Pluto, Pluto had a noticeably inclined orbit compared to the rest of the planets because Pluto's orbital inclinations are 17.14°, 11.88° and 15.55°.

[@GK08_Productions]

I can’t believe its 5 years since the 2017 solar eclipse, dang i’m getting old

[@sushiirolled]

I hope you had a good time seeing the eclipse! I remember seeing the one in 2017.

[@-Kami-Kun-]

Yea that was the first and only eclipse ive ever seen, im hoping to catch the lunar eclipse in november

[@GK08_Productions]

I skipped school to see the 2017 eclipse

[@-Kami-Kun-]

@@therewasoldcringe oh cool

[@vari1535]

Oh my god, thank you SO MUCH for the visual demonstration of why eclipses don't happen twice every month. I was told in school that it only happens when the sun, earth, and moon line up and that the moon's orbit was on an incline and that that's the reason they were rare, but I could never actually visualize it in my head and fully understand it! Sometimes KZbin _is_ better than school.

[@lewismassie]

You're right about the moon's moon having a size limit. It's got a particular name. All I remember that if you calculate it for the ISS around Earth you get 2m EDIT So I went and looked it up, it's the Hill Sphere. R = [semi-major axis] * cube root( [smaller mass] / 3 * [larger mass] ) For the Moon this is about 60,000 km. Though practically this would be more like 30-40,000 km

[@CHKNSkratch]

so if an astronaut got into an orbit 2m around the ISS he would have no hope? I have a plan

[@General12th]

@@CHKNSkratch Since the ISS is bigger than 2 meters across, that's not gonna be a problem.

[@anonymousanon4822]

@@CHKNSkratch It it was possible, he actually would have more hope than if earth pulled him in.

[@u2befake149]

This is so cool! Thanks for taking us along on your trip Cary

[@gratermccheesy9650]

For the automatic lipsync software. The part of it where it originally took google images and put it in the video could be replaced with AI like Craiyon AI to streamline the process.

[@bugjuice_]

That was an incredibly simple, yet useful simulation, i learned a lot from this.

[@leave-a-comment-at-the-door]

Nerd here, 9:15 is a bit inaccurate. What you want is the Hill sphere, which is the area within which a celestial body is the dominant gravitational force. To calculate, when a moon orbits a planet which orbits a star, assuming orbits are circular, the maximum radius of the Moon around the Planet is the radius of the Planet's orbit around the Star times the cube root of ( the mass of the Planet divided by three times the mass of the Star ) A bit more coherently, assume circular orbits rM = outer limit for the orbit of the small object; rP = radius of the orbit of the middle object; mP = middle object mass; mS = big object mass rM < rP * cube root (mP/3mS)

[@patrickskelly8517]

So since the Sun is 300,000x more massive than Earth, rM is 100x smaller than rP. And for the Moon around Earth, rM is about 6x smaller than rP. His guess of 5 to 10x worked out pretty well for that one.

[@KitchenSinky]

I think that's the reason why tpot 2 released a year

[@qKitti]

This is one of my favourite videos of yours, especially since you somehow coded an entire simulation just for one video?? That trip looked like such a fun time, I'm glad you managed to make some new accomplishments along the way :)

[@Philip-qq7ql]

Poor Matt nobody talking about his sad trip lol

[@znazu]

Woah Cary!! That clip at the beginning was really cool! Never got to see a solar eclipse mtself so that was really cool to see!

[@purplehello98]

I remember the 2017 eclipse. My city was directly in the path of totality, and my school let us have some time off to watch it. I don’t remember the exact numbers, but I remember leading up to the eclipse hearing estimates that somewhere around 3 to 4 times my cities population was going to come as tourists to see the eclipse. Still have some eclipse glasses nearly five years later!

[@spore67]

The extent of an object's gravitational hold (where it can have an orbital) when under the influence of a bigger object is known as the object's hill sphere. Our moons hills sphere is about 60,000 km, so that's the max distance an object can orbit the moon

[@RideAcrossTheRiver]

The equigravisphere.

[@corncake4677]

Cary casually being the coolest person alive

[@TheMuzykant]

Hahah! Loving the Matt Parker and Cary mashup here.

[@Danilego]

For some reason, a moon orbiting a moon sounds like the coolest thing ever to me, I hope it exists somewhere, even though it's probably too unstable to last

[@alexthehidingninja]

Your videos are really in depth! I love your content, the animation you created and everything in between.

[@Corncycle]

your videos always have the most interesting, random facts. i love it! great video cary

[@TunaBear64]

I can't wait to tell one of your fans didn't watch this video that you got introduced to Pokémon GO in Chile. Is possibly one of the most random and unexpected things one could say about you. And that's saying a lot

[@Arbrax]

I could listen to Cary talk about eclipses (or most things) for an hour

[@remydapoop]

Me too

[@remydapoop]

His voice is the most calmest thing ever

[@TheLuckylandShow]

What a coincidence. Last night I was watching your time capsule video when you're talking about missing the eclipse back in 2017

[@spcxplrr]

the question of where a moon can be placed depends on a bodies hill sphere, which depends on the masses of the main body, the parent body, and the distance between them. for example, neptunes' hill sphere is bigger than uranus's, because neptune is further from the sun, even if they are similar masses.

[@leave-a-comment-at-the-door]

Oh snap, you beat me by four hours. I just commented basically the same thing... For convenience, here's the timestamp 9:15 and calculation To calculate, when a moon orbits a planet which orbits a star, assuming orbits are circular, the maximum radius of the Moon around the Planet is the radius of the Planet's orbit around the Star, times the cube root of ( the mass of the Planet divided by three times the mass of the Star ) A bit more coherently, assume circular orbits rM = outer limit for the orbit of the small object; rP = radius of the orbit of the middle object; mP = middle object mass; mS = big object mass rM < rP * cube root (mP/3mS)

[@henryzhang3961]

This man imports his drinking water from flint michigan

[@l.r.braniche9713]

Love the fact you just started showing off your code in the middle of the video! Great watch!

[@dstyKchp]

This looks interesting and glad to see it early :D

[@HeyHey-ms3oh]

I'm so glad I saw this video when I did. I've never been interested in traveling to view a solar eclipse until I saw this. I looked up when the next one it, and It's in my country!

[@dissmo706]

I like how cary started rambling about something completely different while talking about his code

[@debblez]

Jeez you’re making me motion sick at the part with the purple moon with all that camera movement!

[@IGNACIOSOLAR1]

Got the full Santiago experience with your passport being stolen, loved the video and the visualization, greetings from Chile

[@theonlycatonice]

1:48 look at that glorious footage dayum

[@4thalt]

Slightly unrelated fact: On the same day of the eclipse, there was a big event happening in Fortnite (and I mean BIG event), and I saw somebody point this out on the fortnite subreddit It's really weird how those two things lined up perfectly on the same day, I actually don't think it was intentional but it's still a really neat coincidence

[@AcetaldehydeMoore]

Omgggg that’s once in a lifetime for a non-eclipse chaser. I need to wait for the year 2042 for it to happen in the Philippines. I hope I can witness that phenomenon bfore I die. You are so lucky to see that in a plane above the clouds. 😊

[@sanders296]

I kinda missed the answer to the title

[@karlkewbz]

Wow!!! I really really love this new type of content! Content so far has been very varied, it reminds me of the channel _years_ ago! With multiple types of videos at once, but I sorta prefer this! I'm really excited to see what's next :> (Also is this the planet where the Map Generator happens? I think so! /j)

[@TheXTrunner]

Native chilean here I feel sorry that I heard that you got your wallet stolen but I'm glad you found the whole experience really fun here anyways We got lucky enough to have two eclipses in our country in the span of 2 years(north and south of our country), one of which I witnessed personally cuz it passed right nearby my house, I can tell you those were really great experiences. And then get blessed to be at the doorstep of another eclipse that is so unique in their pathing, fun times!

[@nenfatae]

Solo diré puintas arinas

[@x8BitRain]

Damn that was an awesome visualization and a great travel story

[@ItsAceWasTaken]

Lmao, I see you included a video of my city's reaction to the 2017 one. I was lucky enough for it to be on the day school would start. We got to go back a day late lol.

[@TiloDroid]

I finally understand why there isn't a solar eclipse every other month, great visual representation!

[@F_L_U_X]

I loved your video, as always, but at 8:43 I was getting really annoyed that you kept messing with/changing the viewing angle lol I remember seeing that Standup Maths video a long time ago...in an ideal world, I'd love to see your videos come out sooner, but I'm also glad I get to see them eventually instead of not at all. Glad you had lots of fun on your trip! I'm a bit jealous!

[@yrouemudder7038]

i dont understand the charm in talking about random science stuff but it works and I'm here for it

[@raeplaysval]

melodysheep always a banger

[@Chris-io2cs]

If anyone is curious about the moons orbiting moons bit that carry played around with and what conditions are necessary to make that possible, the channel 'cool worlds' recently released a great video on just that topic.

[@familyguy0398]

I love that you're using Processing and Notepad++ :)

[@SGE62]

I have a question. Why did you specifically mention Punta Arenas and not Ushuaia? Ushuaia is more southern than Punta Arenas, along with Stanley, the Falkland Islands, and the islands of South Georgia and the South Sandwich Islands.

[@carykh]

Oh yeah, looking at a map, I see Ushuaia is closer! I mentioned Punta Arenas because that’s the airport that the TEI flight departed from. (So it’s a also the city me and the other eclipse viewers got to tour for a couple days)

[@Vichogajardo]

The southernmost city in the continent is Puerto Williams, Chile.

[@Surfboarder4]

great work, great visualization.

[@teratomate8737]

10:24 Somos el mejor país de Chile.

[@thefrub]

-Spends thousands of dollars to fly on a plane to see the eclipse -2/3rds of the video is just him messing around with his solar model program 10/10 video

[@petuespinosa]

Somos el mejor pais de chile!

[@Twin138956Productions2019]

Wow! That's cool!

[@zsomborfekete9973]

What's really fascinating to me is that even on this astronomically small scale the speed of light has a distorting effect. The light from the Sun takes more than 8 minutes to get here, while the Moon is only roughly 1 light seconds away - we see their past positions, but on a different scale. So for us to experience a total solar eclipse, the Sun and the Moon shouldn't be in a perfect overlap, but it's the Sun's historical position 8 minutes ago which must be aligned with the Moon and the Earth.

[@olfmombach260]

The moon is about half a lightsecond away. It just takes us about a second to see a laser _come back_ to us.

[@zsomborfekete9973]

@@olfmombach260 The Moon is 384,400 kms away on average, so it's about 1.3 seconds one-way. But my point was that it's still more than 8 minutes earlier where we see the Sun on the sky, so if we see them overlap it means the Sun's past position overlaps with the Moon's current position. Meaning in reality they are never perfectly aligned during a total solar eclipse.

[@olfmombach260]

@@zsomborfekete9973 Huh you're right, I seem to have that wrong in mind, my bad. It really is a cool effect to think about tho

[@TheSpacePlaceYT]

I probably need soemthing like this for my "Secrets of the Moon" series lol

[@i_moved_channels_this_is_old]

I don't remember the last time I saw an eclipse. I don't even know if it happened. Hopefully I'll see one this year.

[@thecringesaltawardcompany1818]

omg as a Western Australian I'm so excited to think that an eclipse might be touching our little remote patch of land. Kinda motivated to go see it now...

[@darkalligraph]

Woah I know right!!

[@ballbellows]

3:17 this sounds like a bunch of chipmunks seeing their owner coming home through the peekhole😂

[@rosiefay7283]

1:41 Some web designer had a web page to make, to give details of events in 2021, but must've learnt web design in the 1990s!

[@drkspace]

There's a video by All Things Physics that does the orbit Fourier transform to get square orbits.

[@amongus_pvp]

Yessir new carykh vid

[@ace.of.space.]

wow taking a flight to see an eclipse that's so cool ! will do someday

[@clobre_]

I was also thinking about the fourier transform!

[@THE_crxqy]

"my tap water has been tasting a little interesting lately..."

[@sandrinojohnsun9949]

I wonder how solar eclipses looked 3 billion years ago, and how dark it will get

[@thesuperean3008]

Wow, I’m actually early to watch a Cary Knight Helmet video this time!

[@tristantheoofer2]

the next eclipse in 2024 will somehow be by my house at 97% totality lol. epic eclipse btw

[@kdwaynec]

97%? Travel a few miles and see it at 100%. I'll be directly in the path in Ohio, but if I was that close I'd definitely do whatever I could to get to the path.

[@churrasqueriabyrodizio6871]

What happend to de 69.000 of USHUAIA and THE 2.000 of puerto Williams and THE 30 people of puerto toro

[@eyweiuai]

question: wasn't there going to be a virus simulator part 4?

[@mokey345]

fr

[@massey4business]

The moon orbits nearly on the ecliptic. That's one reason we don't get eclipses twice a month.

[@F_L_U_X]

2:10 I'm pretty sure that's masking tape, not duct tape.

[@niniswee1]

Hey Cary, Algodecathlon’s 10th Anniversary Is Coming In 10 days, what are you going to do for celebration?

[@Countryballman4465]

You Know what that purple moon Remembered of Needle's cake

[@EMETRL]

oh for fuck's sake, i clicked to see a cool video of a solar eclipse and i was tricked into reviewing fourier transforms. Goddamnit

[@tOSdude]

I know in 2024 there will be a total eclipse practically outside my window, that should be fun to see.

[@IzzyIkigai]

So wait.. You change your bedsheets less than every solar eclipse?

[@ewerybody]

9:56 Duuuuuude! Did you just come up with 3D Fourier drawings!?! 🤯 Did someone do this already?

[@kama2106]

5:25 does that mean that you change your bedsheets less often than twice a year?

[@sokweydyt8831]

I saw the eclipse (I'm from Chile, my family only had to travel for a few hours lmao) and I saw more than 2000 people in that place so it should be 2304 people who saw the eclipse

[@TunaBear64]

In Antartica?

[@sokweydyt8831]

@@TunaBear64 bro, punta arenas is REALLY close to antartica

[@TunaBear64]

​@@sokweydyt8831 Yeah, but the totality didn't go though Punta Arenas.

[@GregAzerothGalvan]

Yknow it would be funny if the bob/tpot team made “if the pibby darkness was a challenge lol”

[@OmgHiItsDavid]

Cool, I'm watching this a min. From uploading :D

[@warpedmine9682]

Hey i know you were one of the first creators of the animate objects idea but you should look at this little series called ONE i think you would like its twist on your idea

[@ChairTheBee]

8:29 Eitherway, Uranus' name is still funny 9:10 Theia 2.0!

[@encodedpr]

I love all the code in the middle

[@PaintbrushPlushie]

This is confusing me so much, but Im learning so much at the same time. I didn't even know this was happening! my gosh. WHEN DOES THIS ALL HAPPEN? HOW DO YOU KNOW THIS STUFF? AAAAAAAAAA

[@Bencraft1010]

I learn so much about eclipses in under 300 stings of code and with the same person who voices a yellow number?

[@battleofobject6015]

Yo vivo en chile! I live in chile!

[@blakehagins3069]

You might want to check out the video by Cool Worlds that was made recently with a focus on the math between moons of moons.

[@hartenny]

That's what i call an Elusive Sunshine.

[@LemonSoundLogos]

looking at the sun be like: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

[@rhombicuboctahedron7811]

this dude is stalking me wtf everytime im interested ina topic he uploads about it

[@CSGhostAnimation]

ayo hmu for the next journey like this haha

[@intelchip_x86]

holy crap its you the guy that made a video about PCs

[@Veptis]

There are infinite solar eclipses if you can travel through space. And given the advances in this Millenium - there will be space tourism which manages to captures some eclipses.

[@funnydog7133]

itd be cool if you had the planets leave trails so we could see their orbit better

[@A2ne]

Someone used moons to make a Fourier transform in a video about square orbits