Added: 4 years ago
From: yociel
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  • I'm having an exam from this video..

    Who the fuck makes an exam from a VIEDO ON YOUTBE?!

    Stupid teacher...

  • Its kinda too bad that they made a mistake at the last "slide" (look at 5:46). The arctic circle became the south pole, and the antarctic circle the north pole. A bad case of "copy-paste" I suppose....

  • boring and kinda british maybe

  • Today was October 23, one month after spring equinox in australia, and it's already 30 degrees celsius. I can't believe how hot it gets in melbourne, i mean we're just as close to the antartic as the americans are to the artic right?

    Christmas is always so hot, it's just after summer solstice.

  • You got it wrong at the end. :P Change your voicebox

  • Is it just me or does the earth spin slowly? LOL

  • Did she get the North and South poles confused at the last part ? She said it was the winter solstice for the northern hemisphere but then somehow that became the South Pole at the end....

  • Love the British accent.

  • gay social studs teacher showed this in class

  • suba fdhd gjfrhnirsbgnngthjutehnrbgjktdb­gjhsrgbhjvghfgvtfgfgcukjvnbsru­jfmbrfhjvnbrfgbrjghbefdvbdhgvn­adghjfmdbgfdauhjgbdfgjdb n v dfngwfgn

  • It sucks to live in the equator, We've never experienced any winter :(

  • Very beautiful video presentation. As you have mentioned, the earth is tilted 23.5 degrees from it's north/south imaginary line, what i would like to know is, does the earth still remain at it's tilted position during the time of the both equinoxes? In your diagram, the earth is shows tilted towards the right, but in some diagrams, the earth is shown as tilted towards the left. Does the tilt of the earth change from right and then to the left? Thank you.

  • A big help for my discussion to my pupils..thanks.

  • lame

    

  • @Bazoddito Agreed !

  • very good video

  • @Sashomei sux

  • It's not spring equinox, it's march equinox.

  • The video is nicely developed, but at the end of it South Pole is shown as North Pole and vice versa. If the creator reads it, please correct this so that the students are not confused.

  • The video is nicely developed, but at the end of it South Pole is shown as North Pole and vice versa. If the creator reads it, please correct this so that the students are not confused.

  • Can you add Declination Angle of the Sun in the video? Thanks

  • thanks a lot...........

    

  • Very nice representation

  • Really good... the Poles are inverted in the very end of the video. Excellent representation. I am planning a vacation to Norway and this has helped me a lot to choose the date in which I want to be there.

  • @Ozscii mature...

  • i thought the dates for spring were 20 or 21???

  • @nephilim310 its about that time, it changes every year.

  • so does that mean spring and Autumn are hotter than summer on the equator? That is strange

  • @jamesarongray Well yeah, it just depends on the position of the sun. If it is directly above the equator, it's the hottest time there. This is spring or autumn for northern/southern hemisphere, but above the equator it's the hottest time. They do not have "spring" or "autumn", they have daytime climate, they don't really know seasons as we do.

  • @StJohnGercoe cool thank u!

  • If you stop the video (at about 1:43) they show the earth with no tilt, for the example to be correct you need to tilt the earth towards you 23.5% (not towards or away from the sun) but towards your view point on the screen thus giving the equator an somewhat elliptical look on the screen.

  • The earth is on a 23.5 % tilt at all times, thus the equator is at this same angle, so there is never a time when the equator is level with respect to is rotating path around the sun, (in the spring equinox example in the video, yes the earth is not tilted towards or away from the sun but it is tilted 23.5% (leaning back from it forward path of motion) thus putting the equator at a angle not properly reflected in the video) think about it! Let me know if I properly explained this.

  • This model is incorrect, take another look at the "equinox" examples, the rotation is incorrect! It is not reflecting the 23% tilt of the earth!

  • @jwiles1885 during the equinox the earth does not tilt toward or away from the sun

  • This is interesting, but I bet Justin Bieber wouldn't like this because he sucks.

  • excellent >> v well explained thanks

  • All ye be preparin' fo' the 24 HOUUUUUURS of darkness maties!

  • at the very end the NORTH pole is labeled SOUTH. ooops ! Love your accent however.

  • thats a kool upload, thanks.

  • why is it that seasons are difrent both times the overhead sun is over the equator in march and september ?? cuz the angle is the same... wouldn't that cause spring ans auttum seasons to have the same temperature? which they don't... if anybody knows pleas tell me!! 

  • @chocherits

    It is because what season we are leaving and what season we are entering into (in spring we are moving from cold to warm and in the fall we are moving from warm to cold) it is a lag in the change!

  • @jwiles1885 thanks! though it's still kinda confusing .... but I see it

  • Up here in New yor kwe get about 17.5 hours of daylight in the summer, and a minimum 8.25 hours in the Winter. Florida gets an extra half hour of daylight in the winter, but we get longer days in the summer then they do.

  • Back in my old 60's school days, you would have sat in Science class for a week to go over what this video did in 5 minutes. Thanks for sharing.

  • Great video and the method of describing the whole thing is so simple and amazing that even a lay man can understand this thing

    Great work keep posting such videos.

  • IN JUNE THE SOUTHERN HEMISPHERE IS COLDER THAN THE NORTHERN HEMISPHERE, AND IN DECEMBER THE SOUTHERN HEMISPHERE IS HOTTER THEN NORTHERN HEMISPHERE. THAT MEANS THE SOUTHERN HEMISPHERE GETS WINTER IN JUNE N SUMMER IN DECEMBER AND THE NORTHERN HEMISPHERE GETS SUMMER IN JUNE AND WINTER IN DECEMBER?

  • really thanx alot for this video

  • The science is spot on, But be careful how you show the diagram at the equinoxes as you tilted the earth back up to 0 degrees - which isn't what happens!

  • We look in school! :D

  • Thumbs up because I have a geo quiz tomorrow

  • @shortanimationz cool story bro

  • @shortanimationz EXAMS :(

  • Africa is always facing the sun

  • Very easy and simple to understand and it helped me. The voice was annoying. Also, could we add some pictures and music for younger viewers. Is that your real voice? Thank you! Class 8a3 LVC :)

  • @mchammerfan98

    Go to a Jay-Z concert.

  • nice presentation. thank you.

  • Thank you very much for posting this video. The speaker of this video was clear and precise and I learned very well from what she has to say. Now, I finally have a clear understanding of how the seasons work. Thank you so much!!!

  • I was enjoying it until I fell asleep (Andrew Forbes - Year 8 LVC)

  • Comment removed

  • This is the simplest video i see in my life.

  • I thik this is wrong, note that when sunbeans hit the ecuator, earth's axis is forming a 90º angle with the suns plane, and this can`t be posible. Please, if someone can explain it to me i`ll apreciate it.

  • ok, i think it`s just the way you are looking at it... 

  • excellent other wise its a fool attempt  to make some one understand it through words.

  • Thanks a LOT for posting this! I really appreciate it!

  • Awesome video! Except the last couple seconds the N. POle is switched with the S. POle....OOPS!!!

  • thumbs up if u know alot

    

  • epic! i know so much now

  • this makes most documentories sound exiting.

    jesus christ.

  • GOOD!

    

  • Great Video, I have always been interested in seasons. I absolutely enjoy fall and winter so I always love to know exactly what causes it, I knew it was determined by what the earths rotation position was, but this is a great video to find out more about it. I hate Summer so thats the only thing about earth I don't like lol, other then that we have an awesome planet. I can't imagine 35 degree days for christmas in places like Australia..also imagine 24 hours of sunlight or darkness..yuck lol.

  • Very helpful. Never understood this before wothout the model. I have a question, tho. If it's true that the earth's orbit around the sun is eliptical (not discussed here) how does that elipse affect the temperature/ seasons of earth? Anybody?

  • @iciavosser The orbital ellipse is too slight to have a relevant effect on surface temperature.

  • @Dauphin528 Yeah, it just seems to me like there would be so much difference in temp because of the, what is it, millions--- of miles difference in the proximity to the sun. Weird.

  • @iciavosser The distance difference of perihelion vice aphelion amounts to only 3.3%. 

  • @Dauphin528 That, like almost every cosmological fact, is just mind-bending to me. Millions of miles difference is actually only 3.3%!!?

    Thanks for the help, Dauphin.

  • @iciavosser I will try this just out of curiousity with imprecise numbers:

    aphelion: a(1+ e)

    perihelion: a(1 - e)

    where "a" = semimajor axis (93,000,000 miles or 1 AU) and "e" = orbital eccentricity (0.017)

    1.017 AU = 94,581,000 miles

    0.983 AU = 91,419,000 miles (which is 97% of aphelion)

  • @Dauphin528 I have no idea what any of this means. I have found out, tho, that Earth travels at a faster rate at perihelion than at apohelion, and if you average out the time earth spends at these positions versus the relative closeness, it all sort of averages out. About the sun's potential to affect our temperature.

  • @iciavosser So I agree with you that the difference is in fact millions of miles. However, what I do not know is the effect distance has on radiation caused by solar em waves. I know that you are correct that there is a distance caused difference as Pluto demonstrates. Is em radiation proportional to angular size as referenced from the source of emission?

  • @Dauphin528 Okay. I have no idea what you're talking about..

  • @iciavosser The orbital ellipse is too slight to have a relevant effect on surface temperature. The planet is actually closer to the star during the northern hemisphere's winter than summer.

  • well this is very simple indeed but it is also kindda boring for kids.

  • I would subscribe but there's only one freaking video! Nice job

  • At the end of the video during the winter solstice, the north and south poles are the wrong way around

  • good video A+

  • well explained! :)

  • super grasias

  • Very informative. Very clear. Need to show this to my son. Thanks a bunch for posting.

  • This is so boring

  • Gd video

  • saved me from reading it in a boring book......thnx :)

  • soo cool watched it at school and i thought "how cool?"

  • Comment removed

  • Today is the Summer Solstice, the longest day of the year in the Northern Hemisphere. There is more daylight today than any other day of the year. Close to the North Pole, the sun does not set at all, close to the south pole, the sun does not rise.

    In six months, the Winter Solstice will arrive and the conditions will be the exact oppo...site. Cultures all over the world have understood these phenomenon for many, many thousands of years and civilization grew from it.

  • I need to show this to my son.

    ☽ ☼ ✴ Universal Appeal ✴ ☼ ☾

  • Notice @ 5:47 the image annotates South Pole at the Top and North Pole at the bottom, Is this correct as it seems like an error?

  • it makes my exam studinig so easy

  • Geeewd LAWDY this is complicated. But not really.

  • Thank you very much. I am taking an astronomy class and have a hard time visualizing the angles of the overhead sun and how it affects different parts of the surface of the Earth at different parts of the year as well. Thanks again

  • this makes it so easy

  • Excellent !

  • really coool thanks a lot for this

  • wow great explanation....its so simply...

  • I'm greek and I understood the relationship between earth's tilt and the changing seasons better with this video in english than after 2 hours of our professor's explaining it in greek! thanks!

  • Really brilliant teaching resource, thank you!!!

  • This Is The World's Best Video In Universe. Everything About This Is Extremely True. God The Everything In The Universe Through Jesus Christ. This Is Really From The Bible. I'm Really Am The Christian Because This Is What God Wants From All The People On Earth.

  • @Dudekawira you are an wrong god has nuting to do with it it is a sciantific phenomenon also your post makes no sense grematicly or sciantificly go god is a lie and the cherch is a power grabing war mongering bunch of old men

  • The Biggest Spins The Fastest.

  • Comment removed

  • Thanks for making it so simple...

  • @notoriusart

    yeah, I finally get this.

    as the earth orbits the sun, just watch the axis of the Earth. It doesn't change the direction into space it is pointing at.

    This seems to be why different parts of the Earth take on more or less sunlight over the year.

  • wonderful.Valuable information conveyed in a friendly approach.

    congrats!

  • thanks

  • supply

  • pat really?

  • i feel like making a comment after pat

  • Comment removed

  • Comment removed

  • I think that the diagram is wrong at 5:43 as it says that the south of the earth is the north pole and vise versa, apart from that a good video.

  • hahah thanks that helped my whole class. our teacher made us do this test like thing on 2 videos

  • Fantastic thanks for uploading

  • rili?!

  • thank you so much!!!

  • awesomee!!

  • thanks a lot :)

    i have to do this for humanities

    stupid class, lol XD

  • Thank you, you saved me a lot of time by showing the diagrams as well as explaining.

  • Thank you for the video, but the title is a bit misleading. It had nothing to do with geography and more to do with seasons :)

  • @babak001 you learn this stuff when studying geography

  • urgg i dont get it! no wi have to write a 2 paragrapgh essay :(

  • 2 paragraphs is hardly an essay!!!

  • Comment removed

  • yay it was in my science class too do u go to furnace brook?

  • i do!

  • Great video and explanation, thank you very much

  • thank you

  • Thank you.

  • very clear explanation

  • this helped me alot wif my homework

  • thank u very much

  • Yay! 21-22 march = 21st >My bday!

  • This clip is better than learning it in regular school.. they used this in online school

  • Do somebody know if the maximum tilt always have been 23.5 degrees, or will it change with time?

  • Are you asking us to predict the future?

  • Predict the future is maybe a little wrong. If the tilt of the earth, let's say was less in the past than the present time, it will probably continuing getting bigger in the future, or vica verca.

  • It has been that way for the past 4.5 billion years. After Earth collided with another planet.

  • WE KNOW

  • nice of you to post. thank you for your time.

  • getting close to 66 666 viewers

  • Fucking Patronizing xD

  • The labelling of the Poles for the winter solster is wrong. Must be an oversight. A good clip to teach the seasons.

  • This video was more informative than anything I was told about the seasons in high school.

  • this video is very educaional because we can know the weather

  • part 3 when the earth was born there was a collision with a big asteroid ( that explain the birth of the moon) and that can explain why the axes is tilted. and this axes is mooving in the space the angle of this axes is 23,26 degres with the ecliptic plan. This axes is mooving on itself and makes 1 tour in 26000 years around a perpendicular axe to the ecliptic plan....there are a lot of differents mouvments and anomalies.....Sorry for my english

  • well ok... if you say so. my guess was some kind of gravitational pull from sun. merci.

  • answer part 2:So the earth is not round the result is some variations in the gravitationnal attraction from the sun and the moon. the result is some anomaly in the mouvment of the earth. The 2 most important are wath is called ( in french) mouvement de précession et de nutation) but there are some other ones.

    The result is that the tilted axis of the earth is moving in the space but why is this axes tilted, see part 3.

  • hello i am a french guitar player ( videos on your tube) and also an astronomy and sciences teacher, i will give you some answers i hope my english is good enough. the planet is not round or completly spheric . it is flatter to the poles and bigger and rounder to the equator. the planet is not round surprised? to be followed

  • still how/why is the earth axis tilted?...if the planet's completely round.

  • very clear explanation with good graphics

  • this message has been brought to you from vault tec

    prepare for the future!

  • I like this video. It help me to get more information about our season to teach my form one student about geo.

  • great video

  • this video makes it simple, capricorn=south of equator, cancer=north of equator, so capricorns winter is cancers summer as cancer's winter is to capricorns summer

    yay 2012

  • this is very interesting video, see this video for earths realation to the galactic plane and the great year. my answer to violet pumkins question would be the summer temperature has more to do with the way the ocean currents affect the weather and winds than the suns radiation. right?

  • ... and yes my spelling is horrible. It's were... not where

  • I have a question. I live in central Canada. If the sun's energy is most concetrated on June 22, and the day is the longest, how come it is warmest in late July and August? Why is it not around June 22? Also, in late December 2012 there is evidence to indicate a slight pole shift.  If this where to happen would Canada lose it's seasons? ... There was no snow when the Dinasours were here. Thanks for any help with the questions.

  • Warmest in late July and August because the earth has warmed considerably from the longest days (and most direct sun rays) in June and the earth's land surface is radiating heat back up in a big way. Land surface temp. influences how warm it feels. In the same way, Decmeber is the height of winter (solstice) but it's "coldest" in February.

  • So in December in the north hemisphere

    its never morning and in June in the southern

    hemisphere it never morning too,

    I never got that theory before, but I do

    now.

  • highly recommanded

  • Excellent. Just one mistake: At 5:40, the north and south poles have been interchanged.