Why Aren't There Eclipses Every Month?

Рет қаралды 469,328

2 ай бұрын

The moon orbits the earth once per month, which means the moon is on the sun side of the earth every month. So... "why aren't there eclipses every month?" is a question we will answer in this video!
This Product is supported by the NASA Heliophysics Education Activation Team (NASA HEAT), part of NASA’s Science Activation portfolio.
The material contained in this document is based upon work supported by a National Aeronautics And Space Administration (NASA) grant or cooperative agreement. Any questions, findings, conclusions or recommendations expressed in this materials are those of the author and do not necessarily reflect the views of NASA.
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Created by Henry Reich

Пікірлер: 631

@ladsworld 2 ай бұрын

Very kind of him to account for any moon dwellers in this explanation. Forward thinking.

@mifiwi3438 2 ай бұрын

I'll thoroughly enjoy this video even in 2084

@onestepatatime158 2 ай бұрын

Yeah

@thezipcreator 2 ай бұрын

around that time period it was thought that all planets/celestial bodies were inhabited by life, until we eventually realized that that was silly.

@mifiwi3438 2 ай бұрын

@@thezipcreatorI didn't even think of that, I thought it was just a joke from minutephysics but yeah no, it's true.

@trampwall 2 ай бұрын

It would be nice to get a perspective of an eclipse from the vantage point of the moon.... We likely will in the near future.

@Un.qualified. 2 ай бұрын

My guy didn’t want to look stupid in case there ended up being “moon dwellers”. Love it.

@captainjackson18 2 ай бұрын

I had a question as kid that why wont’t planets cast shadows on other planets

@cuitaro 2 ай бұрын

@@captainjackson18 They do, and they're called transits.

@mvalthegamer2450 2 ай бұрын

They can, if they are close enough. In practice, almost none are close enough

@RedundantDan 2 ай бұрын

@@captainjackson18 That's actually how people detect planets in other solar systems! The method is Transit Spectroscopy. They measure the intensity of the light of a star and look for any dips in light intensity caused by planets passing in front of it (relative to us). The planets are casting their shadows on us from across space!

@driftliketokyo34ftw35 2 ай бұрын

Futureproofing.

@romnicklor9167 2 ай бұрын

1:18 I like the touch of red hue of Earth's shadow accounting for its atmospheric diffraction

@Vekcrazah 2 ай бұрын

And subtly explaining Lunar eclipses without it being the main point of the video

@FootLettuce 2 ай бұрын

It's worth mentioning that the nodes of the Moon's orbit shifts every year thus making the time of eclipse seasons shift accordingly.

@kcrtxbw.4349 2 ай бұрын

Ah right, i did a double take on that one. Would be cool to have an 'eclipse season', though.

@Vex-MTG 2 ай бұрын

This is a really important point!

@XJWill1 2 ай бұрын

What causes the nodes to shift? Is it just a chaotic 3-body system? Or is there some simpler physics involved?

@noodle_typhoon 2 ай бұрын

Just here for the answer ❤

@jeremykraenzlein5975 2 ай бұрын

I would be curious too. Is a a constant shift, so many degrees per year? If not, then what causes variation in it?

@arsyanandregate7288 2 ай бұрын

that last 17 degree explanation was so spot on that my puny brain finally understand

@saptarshibarman8104 2 ай бұрын

One of the very first question came to mind when i first learned about Solar System as a kid……….Finally got the answer after 19 years😅😅

@Michaelonyoutub 2 ай бұрын

Yeah all of the models and diagrams make them look like they are in the same plane generally

@abdullahcosgun 2 ай бұрын

Same and I always thought the reason would be similar to what explained in the video. I never checked it though

@Pikachu0071000CS 2 ай бұрын

Funnily 19 years is a pretty important length of time in eclipses as it's the length of a Soros cycle iirc

@Cobol-Eng 2 ай бұрын

The last part of the explanation is that yes, you'd still get about 1 to 2 eclipses a year, but 75% of the Earth's surface is water, so it's even rarer for it to occur over land, let along inhabited land. Eclipse cruises are also totally a thing.

@thelibyanplzcomeback 2 ай бұрын

You never bothered to look it up?

@Cats-TM 2 ай бұрын

Personally, as a moon dweller, I am glad he remembered us in his explanation. I do love seeing our shadow on the earth.

@JohnnyWednesday 2 ай бұрын

Stop hoarding all that moon cheese or we'll stop sending you robots to eat!

@NeoTechni 2 ай бұрын

The moon is not a planet! kzfaq.info/get/bejne/Z5mCYN18rNi8pps.html

@jeremykraenzlein5975 2 ай бұрын

So why don't you send us pictures of it? The videos I have seen from low Earth orbit of the moon's shadow on the Earth are amazing! Seriously, were any of the (before my time) 1960's trips to the moon timed to coincide with eclipses? It would be cool to see from the moon as the moon's shadow crosses the Earth. I also suspect that a lunar eclipse would appear far more spectacular when viewed from the moon that when viewed from Earth.

@carultch Ай бұрын

As a moon dweller, how well did Lucien Rudaux do with his painting of what a lunar eclipse would look like, when viewed from the moon?

@MIKAEL212345 2 ай бұрын

I love it when the "it is no wonder" section actually is "no wonder". Looking at you math books and their "left as an exercise for the reader" bits

@Aaron.Thomas 2 ай бұрын

The times it was "left as an exercise for the reader" and instead I just didn't get it.

@undre-ah 2 ай бұрын

Finally a great return to a geocentric model at 1:44 ! 😜 Copernicus please acknowledge your defeat!

@tschantz 2 ай бұрын

Technically the Earth and sun orbit a point in space between them since the sun also moves (depending on where Jupiter and Saturn are). So geocentricity and heliocentricity are both wrong.

@undre-ah 2 ай бұрын

@@tschantz, I know. I was just making a joke about the fact, that for the sake of easier representation, a geocentric model has been used! Anyway, about the point you are making, is this gravitational centre ever outside the diameter of the sun? It's a genuine question.

@liamwalsh4008 2 ай бұрын

@@undre-ah I was just going to say that, I'd be very surprised if the barycentre ever lay outside the diameter of the sun, which makes it a moot distinction when talking about heliocentricity.

@travcollier 2 ай бұрын

He's a physicist, right? Changing reference frames is sort of second nature ;)

@tschantz 2 ай бұрын

@@undre-ah From spaceplace.nasa.gov: “Our solar system's barycenter constantly changes position. Its position depends on where the planets are in their orbits. The solar system's barycenter can range from being near the center of the sun to being outside the surface of the sun. As the sun orbits this moving barycenter, it wobbles around.”

@boatbomber 2 ай бұрын

Astronomy For Dummiez (Original Edition)

@onestepatatime158 2 ай бұрын

Yeah

@GandalfTheTsaagan 2 ай бұрын

Astronomy for Dummieth

@CadetGriffin 2 ай бұрын

*Astrophysics for Morons* but planets are plants and gravity is gravy and Uranus is... oh my gosh!

@IcyTea 2 ай бұрын

true..

@user-zs3st5qq6r 2 ай бұрын

hey its you! ive used ur open source modules before, very helpful 👺

@Phoenix_eleven 2 ай бұрын

We do live in a 3d world guys

@onestepatatime158 2 ай бұрын

Maybe

@amihartz 2 ай бұрын

says the person in my 2d computer screen

@volodyadykun6490 2 ай бұрын

Solar system is pretty flat though

@DasHackii 2 ай бұрын

truly a multidimensional experience being provided here

@glennac 2 ай бұрын

Let’s see: Mercury…Venus…Earth! I guess you’re right. 😃

@kiboplua 2 ай бұрын

this video felt very nostalgic with the double bass and the talking pace, just like 10 years ago videos. i like it this way ❤️

@JesterOC 2 ай бұрын

That was amazingly clear

@onestepatatime158 2 ай бұрын

Yeah

@moontravellerjul 2 ай бұрын

i appreciate the detail that the earth’s shadow was red (an atmospheric effect) which illustrates why lunar eclipses become blood moons, especially when the whole near side of the moon is eclipsed!

@juanplopes 2 ай бұрын

"Her shadow falls upon the earth” sounds like a biblical passage 😂

@Maegnas99 2 ай бұрын

Please, as if anyone whos stories ended up in a bible knew anything that was happening more than 10 feet above their heads.

@jefffinkbonner9551 Ай бұрын

It does and is actually a really beautiful and pleasant way of writing. It’s that old-timey manner of personifying objects and then using the feminine or masculine pronouns. The moon seems to have always been perceived as feminine (luna in Spanish.)

@e1123581321345589144 Ай бұрын

@@jefffinkbonner9551 except in Japan, where the Sun is the goddess Amaterasu and the Moon is her husband

@benjaminkurokawa7970 Ай бұрын

@@Maegnas99 im 14 and this is deep

@westhuizenarchives2614 Ай бұрын

Maybe because early astronomers and most scientists who started the major fields of Academia were Christian.

@cfactor221 Ай бұрын

I asked myself this EXACT same question after April 8th's eclipse. THANK YOU FOR SUCH A GREAT EXPLANATION DUDE!

2 ай бұрын

It makes total sense in retrospect, but I had never considered that every solar eclipse HAS to have a new moon, and every lunar eclipse HAS to have a full moon.

@theonlylolking 2 ай бұрын

Must, the word you are looking for is MUST

@1234567895182 2 ай бұрын

@@theonlylolkingpotato potato

@azertytores 2 ай бұрын

Simple, clear, effective, I love it!

@christophersheffield9574 2 ай бұрын

Jason Gibson did a video covering this a few days ago too. Since I was 6 years old I felt I was pretty astute with astronomy but both of you blew my mind this week.

@Bananaramaaah 2 ай бұрын

i feel like i haven't seen a youtube video by you in a year or two. Thanks for educating - loved your channel back then, still love it. Thanks for everything.

@TheOtherSteel 2 ай бұрын

Thank you for posting a new video! I greatly enjoy watching minutephysics-style content. This video finally explained to me the exact reason eclipses occur. Fantastic!

@chimpinabowtie6913 2 ай бұрын

I love how the childish depictions are so seamlessly and professionally animated, so much so that you don't even notice the transition. Very clever on the part of the animators.

@darthjarjar6756 2 ай бұрын

Kudos to the animation. One of your best.

@ddmarty 2 ай бұрын

I love the way you explain things. I could also listen to you narrate all day.

@drewbewho Ай бұрын

This is beautiful work. Well done. The dialog, the double bass, the deliberately cartoonish sketches, the animation. Nice video. Or in modern day vernacular: this be low key da best no cap. I did pose myself this very question following the recent eclipse, and had my reasoning confirmed by this, and fergusons explanations.

@quentinbricard Ай бұрын

Great video, thank you for this video!!!

@Sambenmaggie 2 ай бұрын

Amazing and intuitive animation at the end. Great work!

@Gashren 2 ай бұрын

Great explanation! Short and memorable, thanks to the simple and clear animation.

@josephmak0865 Ай бұрын

Excellent explanation and illustration

@osmia 2 ай бұрын

Thanks so much for uploading this really clear explanation

@MoPaTography 2 ай бұрын

I've missed short and sweet Minute Physics videos like this!

@KeithMoon1980 2 ай бұрын

I've wondered this for ages! Thank you

@BjornStrausstrup 2 ай бұрын

Nice to hear from you after a while! Keep going bro 🤝🏻

@YogendraJagat-tw1xy 2 ай бұрын

Your way of explanation is outstanding 😊😊

@seljer 2 ай бұрын

The animation in this video was top notch! Great work!

@MattheasJ Ай бұрын

Quality explanation. Much obliged.

@FridoGrahnify 2 ай бұрын

A perfect explanation, thank you!

@brianhess5083 2 ай бұрын

That was…incredibly helpful. Thank you!

@Jakeski87 2 ай бұрын

I love minute physics. Thank you for the content.

@onestepatatime158 2 ай бұрын

Same

@ThePov88 2 ай бұрын

Thank you. My 9 year old asked this question a few weeks ago. I'm going to show him this video. So clearly and simply explained.

@Piemasteratron 2 ай бұрын

Great explanation! Thanks

@Timmzy27 2 ай бұрын

The moons orbit got a wonk and only 2 nodes, nodes and wonk need to align for an eclipse #RespectTheWonk

@theastuteangler 2 ай бұрын

#wonk4life

@mrseaweed1000 2 ай бұрын

Interesting topic, short, to the point, cool drawings, and simple but clear explanation. This is minutephysics at its best

@FrankJohn 2 ай бұрын

thanks for clearing this one up for me

@zedxxx9 2 ай бұрын

Well done! Thanks.

@voldlifilm 2 ай бұрын

That is so elegantly described. I love it. It borders on art.

@astroluxuk 2 ай бұрын

THANK YOU! This is such an easy to comprehend answer to what's puzzled me for ages :D

@josephtixier2404 2 ай бұрын

I would love to see more of these. Before demonstrations were made with formula, it was all text and some even rhymed. From Pythagore to Pascal, there has to be some short and elegant demonstratioins like this. That was great !

@bassamxp 2 ай бұрын

Thank you for this nice video

@DiogoLScarmagnani 2 ай бұрын

Very interesting curiosity I never searched for before. Thank you.

@CarloPiana Ай бұрын

Simple and straightforward. I knew that was the reason, but here the visuals and clarity make a great explanation. Way better than my astronomy class at High school.

@Davanthall 2 ай бұрын

It's not often minutephysics has to result to using 3D animations. So cool to see!

@jeffwei 2 ай бұрын

Resort*

@Demirbaykus 2 ай бұрын

Amazing, short and damn informative. You got a sub

@VicJang 2 ай бұрын

Great video!! Makes me feel incredibly respectful and humble to know that someone 250 years ago can write such a accurate and detailed explanation for this. The that that human is able to propagate knowledge to the future generations truly sets us apart from other species on the planet doesn’t it? Amazing!

@thefanboy3285 2 ай бұрын

Oh ! So that's why ! Thank you for the explanation.

@jbtubman Ай бұрын

I have wondered about this since I was a kid. Thanks for clarifying!

@StudyAcc-pn7kc 2 ай бұрын

I thought of this question the very first day we were taught about eclipses 🤔 But when I asked my teacher, she said that my question was stupid but I never could understand what was wrong in my doubt I revised the topic again and again but still couldn’t seem to understand why we don’t have eclipses every month We were never taught about the tilted orbit of the moon Soon, I completely forgot about my doubt and moved on Now, I feel relieved to have finally found the answer after 8 years 🤚 Thanks a lot! ❤

@petatirrumator3005 2 ай бұрын

So incredible that we live in a age where you can just watch a video and understand it instead of relying on some ignorant teacher.

@stevevernon1978 Ай бұрын

and now you are reminded that teachers are not known for "knowing stuff" but rather for "teaching stuff"

@carultch Ай бұрын

What a teacher should do, is have a question box for all the questions the students ask that the teacher doesn't know at the time the question is asked, but will look into later. This isn't a stupid question. This is an excellent question, since it promotes the need to think in all 3 dimensions, and understand a bigger picture of reality.

@sailorman8668 Күн бұрын

The trouble with teachers, is that in general, they aren't actually that smart I'm afraid.

@Bronze_Age_Sea_Person 2 ай бұрын

Could you make a video explaining the Saros cycles too? They are related to the eclipses as well.

@CaioAletroca 2 ай бұрын

This question pursued me as a kid. Since I learned about the celestial bodies and eclipses I made the same question (at around 7 to 8 years old), but the teacher for some reason explained in way I didn't understand, probably something around "because of seasons". WTF I kept in my mind but only after two years later asking another teacher about it, while trying to draw the moon and earth in the air with my hands, she just said "because they aren't aligned, they are spinning on different planes". It just clicked for me.

@ljdobles8104 2 ай бұрын

Excelente explicación

@timothybut6277 2 ай бұрын

Interesting knowledge.

@princesshannah7 2 ай бұрын

Going to see the April eclipse and was wondering about this, thanks!

@cardboard2night 2 ай бұрын

Great video. Good for world building.

@franalappies 2 ай бұрын

I needed this

@werdwerdus 2 ай бұрын

still one of the best science channels

@primenumberbuster404 2 ай бұрын

Both Veritasium and Minute Physics uploaded yipeee!

@TheSkillMasterHD 2 ай бұрын

Such a simple question. Such a beautiful answer.

@user-yp8hc8gz2x Ай бұрын

Also, the earth has a lot of water. Sometimes when there is an eclipse it is isolated to an ocean.

@Hypercube1729 2 ай бұрын

Finally I actually fully understood a *minutephysics* video! Praise be moonwellers 💯💫

@fjaviermo 2 ай бұрын

Best eclipse explanation EVER

@GuyPerson-jt9tv 2 ай бұрын

I need like an entire documentary just filled with diagrams of the earth, sun, and moon to fully wrap my brain around the way they all move around. 😵‍💫

@Morbius1963 2 ай бұрын

Very Good. You should do a commercial series for Junior High School and High School science.

@johnmackelvey 2 ай бұрын

Thank you

@nathanstafford8412 2 ай бұрын

In short, space isn't a flat plane. Therefore, eclipses can only happen when the moon lines up with the sun and the earth such to create a straight line.

@markzambelli 2 ай бұрын

This vid was 250 yrs in the making and delivered in under two and a half minutes, and so well at that.

@jd35711 2 ай бұрын

always nice when your intuitions prove correct

@Pottery4Life 2 ай бұрын

Thank you.

@Hoaxe72 2 ай бұрын

Can’t wait to find out

@onestepatatime158 2 ай бұрын

Yeah

@stephanieparker1250 2 ай бұрын

Love this 🤗🤗

@freesk8 2 ай бұрын

I'm a math and science educator. Nicely done! Thanks. :)

@johnchessant3012 2 ай бұрын

I figured that was the answer but this is a great animation!

@LegendGaming-il4iw 2 ай бұрын

How he teaches a such topic in 2 mins , I will like i crash courses . Really loved the video .

@sagarchakraborty8487 2 ай бұрын

That's great mannn

@diabl2master Ай бұрын

Nice to my intuition was basically right on this.

@Weretyu7777 2 ай бұрын

My man Ferguson knew that we'd land on the moon someday and decided to account for it in his explanation. Smart man, he was.

@matrixboi0075 2 ай бұрын

Honey wake up, new minutephysics video dropped

@maxdudek4911 2 ай бұрын

Very CGPGrey-esque writing style for this one, with the poetic language and the personification of objects

@AwesomeSheep48 2 ай бұрын

I think he was just reading from the paper

@American-Plague 2 ай бұрын

I drove to the dead center of the Great American Solar Eclipse in Sylva, NC in 2017. One of the most amazing things I've ever seen. I highly recommend everyone go see one who has a chance to.