What is an Equinox? | National Geographic

What are equinoxes? What causes these astronomical events? Find out how they influence the seasons and hours of daylight on each planet.

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What is an Equinox? | National Geographic

National Geographic

[SpottedSharks]

You can set up an experiment in your yard to track the shadows the sun throws on an equinox.  Put a stick (aka, a gnomon) in the ground or through a piece of cardboard and then mark the tip of its shadow throughout the day.  It will trace a perfectly straight line.  Other times of the year it will trace a frowny face during northern hemisphere summer and a smiley face during northern hemisphere winter.  A straight line will happen only on an equinox.

[novas]

You should mention "only in 4 seasons continents", because I live with 12hrs day & 12hrs night everyday, where equinox means hotter than normal..

[nivashchandran]

Today's the day of autumnal equinox
Let's see what's happens today equal day and night 🤨 in India

[alexlynch]

This is really helpful information since it helped me with my assignment.

[olgereras]

Thank you so much Nat Geo! I always love your videos!

[ariqkamil]

Yap today in my country Indonesia has equinox, nothing special but the light is very bright

[viktorsjogren]

Well, now I know when to use the "vernal equinox" excuse for leg day.

[casualray]

Ok, we were doing just fine until 0:58 the solstice term came up. Whats that? They mean the same? Ok, we'll keep digging for complete knowledge. This vid is nice though! 2 thumbs up! :)

[jimaugie]

I'm not sure about the signifegence of the equinox signaling of 'the changing seasons'.

[arellanocristopher]

I'm here because of captain Yami black clover lol🙂

[nforbes]

What's wrong with Autumn? I remember when people used to call Autumn Autumn, instead of Fall. Choices of words affect people. So if you are in the middle of Fall, your subconscious mind could interpret that as you being in the middle of your fall, as in down fall.

[NYCTO]

It is actually one of Skrillex's track.

[reddyandre]

This video is so busy. Take this one minute and 26 seconds to teach with clarity and simplicity. There's no need for fancy graphics with all sorts of movement on the screen at once. The only movement that matters is the earth revolving around the sun while maintaining its axis of rotation facing in the same direction and always at 23.4 degrees.

[mealeaFlowers]

Can’t wait to post the Angkor Equinox when the sun ☀️ rises just over the top of Angkor Wat central tower soon. Bear with Sam Inspire Angkor from 21 March 2021 onward!

[klaus]

I'd like to hear from Flat-eathers the explanation of this. I'm sure they have one.

[varunkumar]

0:08 It should be "They occur twice in one revolution of a planet around the sun" Isn't it?

[candidasoares]

welcome spring! May you be nice and helpful...!!!
Interesting !! Beautiful pictures... from Google...!!
Thanhks for all informatrion!!
Congratulations today and always and Good Luck!!!
Cândida Soares

[ty]

National geographic couldn't afford a narrator?

[kiebitz]

On every planet? What about Uranus that one is rolling on his side...

[boop]

You know that people live in the southern hemisphere right? It's sad we don't ever seem to get more that the quickest mention..🙄 Still liked you video nation geographic but can you please include us next time?