There Are A Lot of Gravitational Anomalies on Earth

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In this video, we will talk about the gravity of Earth

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The video introduction made by Daniel Bates

The new music theme made by Bogdan Bratis

[Duder-]

Glad I ran across this vid👍🏻 I’m taking gravimetric and magnetic exploration this semester. The equations are sometimes a pain but the concepts I really enjoy. We study three different anomalies: Bouguer, free air, and isostasy

[VIKASKUMAR-qfpf]

5:24
I'm geophysics student
The gravitational force of attraction of earth is dependent upon the density not only distance from the centre

[jensphiliphohmann]

Hi Anton, you forgot another influence: Sun's and Moon's. They also lower Earth's gravity both just below them and at the opposite side of Earth, mostly when they work together at full moon and at new moon. This is where the tides come from.

[therealestcad]

i used to always love watching your vids
and i still do

[raeesaparveen]

3:01 The value of 'g' is greater at poles than equator due to Earth's shape

[shaymayca]

I don't quite understand the air pressure/Gravity difference. wouldn't the high air pressure make gravity stronger? There would be more pressure (air mass?) pushing down on you and thus more mass being pulled into the earth? Or is it a thing where the air is heavier and you become less heavy (comparatively) to the "heavy" air mass?

[jensphiliphohmann]

Shortly past 3:00 of course, at the poles, the gravity would be highest, not lowest in its absolute value.

[benjaminrichard]

It’s unbelievable to me that gravity changes depending where you are on Earth 🌎 😱

[PukeSkinwalker]

The one in the Indian ocean very likely due to the moon. The reason is that it is spherical and the moon is tidally locked with Earth. The hypothesis is backed by that location being the most common lunar eclipse location being visible. This means that the likely best location for it and we should be able to see the gravitational impact of the moon on Earth's map but we don't. If true, this would be the cheapest route and flight path for the moon due to it having less escape velocity needed. It means India looks to be a great way to get to the moon.

[akashpatel]

How does less pressure means less buoyancy? I know if the pressure column above is exerting less pressure then your weight would be less. But what do you mean here by buoyancy?

[jithyarupasinghe]

Is it true that Sri Lanka has kind of lower gravity ?

[APROSTORAT]

I miss a thing or why would having more mass/higher altitude affect gravity negatively ?

[martijnvanweele]

Saying the gravity is 9.81 meters per second per second has to be incomplete, right? Because that would mean that for every second you spend falling, you'll speed up by 9.81 meters per second. So after one second, your falling speed is 9.81 meters per second, then after two seconds, it'll be 19.62 meters per second, then after three seconds, it'll be 29.43 meters per second. Now, if you plot that on a graph, you'll find that that equates to a straight line, and that just can't be right. This is because, as E^2=(mc^2)^2+(pc)^2 (in which E is the energy an object has, m is its mass, p its momentum and c the speed of light), and V=c*(pc/E) in which V is an object's velocity. From those two equations follows that as long as an object has mass, no matter how much energy you pump into it (for instance, kinetic energy by dropping it from a great height), V can never equal c, because pc can never equal E unless m equals 0. If E becomes greater and greater, then V will approach c closer and closer, but never reach it. If we were to plot a falling object's speed using those rules, we would expect an inversely exponential graph (I'm not a maths person, and I'm not sure if that's the proper term) rather than a linear one like the gravity formula would suggest...

[aquaticsplashes]

So then do planets that dont spin not have gravity?

[toomdog]

Seems like variation in the density of the crust will have a lot more effect than any distance change we can achieve on the crust.

[moonic]

Your voice is amazing on this video. Can you keep it like this from now on?

[GaGProds]

Zdravei Anton, radvam se che imam sunarodnici kato teb koito pravqt takuv strahoten content :) Produljavai vse taka.

[narddog]

So if space and time are so closely related would it not stand to reason to anomalies in space are anomalies in time as well

[ruthuskr]

Explain why gravity is 0 m/s2 at the center?

[SteveStrummerUK]

Hi Anton. As a concept, I've never really understood one thing about how the 'strength' of gravity varies with distance once you're measuring it *inside* the body itself. Obviously I can see that gravity reduces as you move away from the surface of the object.

However, say you move down from the surface toward the centre. You'd think that the force of gravity would increase as you move closer to the 'centre of gravity'. However, if the body is of uniform density, surely as you approach the centre, a larger and larger proportion of the mass of the body is above you. Wouldn't this mass above exert a gravitational attraction on you toward the surface (as the attraction toward the centre lessens by the same reasoning)? This would lead logically to the expected outcome of zero gravity at the centre?

What am I missing here?