The geoid undulations are quite small. They have been exaggerated in these pictures to make them clearer to see. From space the Earth looks pretty much like a sphere.
Interesting - I've always thought of the the Earth's gravity field (or the gravity field of any planet) to be uniform. Although, on further consideration, it makes sense that it would not be uniform as there would not be uniform density throughout the planet. It's nice to see a map of what that non-uniform distribution of density would look like, and how it would effect things like sea level and satellite orbits.
qwerty uiop the shape of the earth is an oblate spheroid, yes, however , the difference of the earths shape is very minute. The earth bulges slightly at the equator. You can not observe the imperfection of the earths shape with the naked eye. The earth’s shape is most simular to a perfect sphere.
The earth was spinning which why you are seeing it look round, when the earth spins, the top is being pushed down like and orange when you see it being spinned around! However the earth is massively big but it is not a perfect surface, that is because most of the water is covering it up as well.
NO, it's not a nasa photo, it's wasn't made by nasa, it isn't even a photo. It's a graphic representing the intensity of gravity all over the surface, with those differences represented by altitude multiplied by a HUGE factor to make it ilustrative, since the diferences in gravity strength are small.
Esa: gravity on earth changes from location to location, we can now see this with more precision CZcams: but climate change, heres some context... * sources wikipedia
That's a model. You can see actual photos of the beautiful earth in the documentary A Beautiful Planet directly from a space shuttle. However, in relative physical terms, Sarge Rho is correct that Earth is smoother than a billiard ball. We just don't see it that way because we're small.
By the way those ridges and bumps are what helped geologists and oceanographers figure out plate tectonics, which is a fundamental theory to the modern day world view. Before the 1960s people didn't realize we were living on a constantly convecting inner planet, riding around on slowly moving continental and oceanic plates. Before that people didn't know if polar wander theory or continental drift was correct.
The bulge in the model you are seeing in the video is massively exaggerated so we can actually distinguish it shape to a perfect sphere, actually the bulge is only 100 m above the sphere (or ellipsoid to be more precise) at max
The geoid undulations are quite small. They have been exaggerated in these pictures to make them clearer to see. From space the Earth looks pretty much like a sphere.
Ah yes, big brain words
Interesting - I've always thought of the the Earth's gravity field (or the gravity field of any planet) to be uniform. Although, on further consideration, it makes sense that it would not be uniform as there would not be uniform density throughout the planet. It's nice to see a map of what that non-uniform distribution of density would look like, and how it would effect things like sea level and satellite orbits.
That’s a lot of uniforms
This explains the wobble.
No that’s just the people from my 600 pound life
@@zlfex no thats just the baseline of the music from 2009
The shape of the Earth is not like new football but the old ragged with less air in it.
Hello
what is the difference between Geoidundulation and altitude anomaly.
It is. It's by comparison smoother than a Billiard Ball. This is an exaggerated representation of the gravitational field near the surface of Earth.
x 100,000 most often.
×100,000
German scientists trying to speak clear english (with more or less sucess) - Best scientists :D . Interesting vid btw
So did you get a job there yet?
@@nolongerused6757 yes 👍😊
im from germany lmao
should test that out on mars gravity too
_mars is, bagel_
Since Elon musk wants to move people there, this would definitely help.
I'm very happy about coming across this
Thanks for stopping by!
so that's why gravity feels weaker some times
Lets see if I comment on this vid during 2021, will youtube recommend this vid?
Good explanation
I've a question...the "ideal geoid" in the description is the ellipsoid??????? thx
Mati HavockedSoul , elipsoid is not ideal surface for geoid. the ideal one is sferoid. but ellipsoid is easy for calculate on it
So why is the moon a perfect circle it has no water.
its got dust
Define perfect
Me?
Moon is not a perfect circle.
It's not a perfect sphere it has craters
Oblate spheroid is the shape of earth. Its like a pear.
qwerty uiop the shape of the earth is an oblate spheroid, yes, however , the difference of the earths shape is very minute. The earth bulges slightly at the equator. You can not observe the imperfection of the earths shape with the naked eye. The earth’s shape is most simular to a perfect sphere.
Eu descobri isso vendo Google earth, e descobri coisas assustadoras também.
If this is real shape of earth what about nasa photo from moon?
The earth was spinning which why you are seeing it look round, when the earth spins, the top is being pushed down like and orange when you see it being spinned around! However the earth is massively big but it is not a perfect surface, that is because most of the water is covering it up as well.
NO, it's not a nasa photo, it's wasn't made by nasa, it isn't even a photo. It's a graphic representing the intensity of gravity all over the surface, with those differences represented by altitude multiplied by a HUGE factor to make it ilustrative, since the diferences in gravity strength are small.
Esa: gravity on earth changes from location to location, we can now see this with more precision
CZcams: but climate change, heres some context... * sources wikipedia
It's so~ keen! B-) B-) B-)
00:19 let the tampon release
*0:17
Wow, Earth is sure ugly. I always thought it was a pretty and smooth sphere.
That's a model. You can see actual photos of the beautiful earth in the documentary A Beautiful Planet directly from a space shuttle. However, in relative physical terms, Sarge Rho is correct that Earth is smoother than a billiard ball. We just don't see it that way because we're small.
By the way those ridges and bumps are what helped geologists and oceanographers figure out plate tectonics, which is a fundamental theory to the modern day world view. Before the 1960s people didn't realize we were living on a constantly convecting inner planet, riding around on slowly moving continental and oceanic plates. Before that people didn't know if polar wander theory or continental drift was correct.
The bulge in the model you are seeing in the video is massively exaggerated so we can actually distinguish it shape to a perfect sphere, actually the bulge is only 100 m above the sphere (or ellipsoid to be more precise) at max
Bruh
sri lanka is the best place