国产三级大片在线观看-国产三级电影-国产三级电影经典在线看-国产三级电影久久久-国产三级电影免费-国产三级电影免费观看

Set as Homepage - Add to Favorites

【trash talking smoking sex video】Researchers may have solved Earth's bizarre 'gravity hole' mystery

Source：Feature Flash Editor：fashion Time：2025-07-03 02:36:55

Like all scientific mysteries,trash talking smoking sex video the Indian Ocean geoid low (IOGL) — also known as the Indian Ocean's "gravity hole" — shouldn't exist based on what we know. And yet, there it is. Fortunately, a team at the Indian Institute of Science published a seemingly sound explanation in May: the gravity in that spot is relatively low because down in the Earth's mantle, underneath the Indian Ocean, hot, upward "plumes" or currents of rock altered the mantle's structure. 

The finding is more profound than it may seem — but to understand why, you first have to understand why the geoid matters in the first place.

SEE ALSO: Giant Asteroid Set Earth's Crust in Motion 3 Billion Years Ago

The real shape of Earth

From a certain perspective, the geoid is the real shape of Earth.

You May Also Like

Earth isn't a perfect sphere, and we wouldn't be able to, say, launch and use satellites if we wrongly acted as if it was. An ellipsoid — the shape of a yoga ball when you're sitting on it — is a more accurate description of Earth's overall shape. But to a rotating satellite, an ellipsoid isn't quite right either. The actual shape in this context can only be seen in a representation of Earth's geoid.

Mashable Light Speed Want more out-of-this world tech, space and science stories? Sign up for Mashable's weekly Light Speed newsletter. By clicking Sign Me Up, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy. Thanks for signing up!

The geoid isn't just a topographical map; it's a map of Earth's gravitational field at the surface. This is how an object orbiting Earth "experiences" our planet's shape, if you will. It has peaks and valleys that mostly correspond to identifiable causes, and some are no-brainers — like mountain ranges or the deepest depths of the ocean.

Gravitational anomalies

But Earth's geoid also has some weird spots that can't be explained by anything as simple as topography, and there's none weirder than the IOGL.

Earth's geoid with the geoid low prominently featured in the middle.The big, dark blue blob is the IOGL Credit: JPL / GRACE global gravity animation

Using "time-dependent global mantle convection models" of the Earth since the Cretaceous period, guided by our understanding of tectonic plate movements, the researchers deduced the cause of the IOGL's formation by simulating the flow of heat over millions of years. Pieces of the Earth's crust that sank over time caused hot rock in the mantle to rise below the Indian Ocean. The IOGL, then, is an area of low mass below that blob on the map — caused by the rising rock we mentioned earlier — and the resulting slight downtick in gravity.

Related Stories
  • Stunning astronaut photos show Australia's outback 'like an open geology book'
  • NASA slammed into an asteroid. Hubble just spotted a spectacular effect.
  • Exploding volcano does something scientists have never seen before

As the paper phrases it: "sinking Tethyan slabs perturbed the African Large Low Shear Velocity province and generated plumes beneath the Indian Ocean, which led to the formation of this negative geoid anomaly."

So what does all this mean about the true shape of Earth? "The Earth is basically a lumpy potato," paper coauthor Attreyee Ghosh told CNN.

0.1436s , 14340.0703125 kb

Copyright © 2025 Powered by 【trash talking smoking sex video】Researchers may have solved Earth's bizarre 'gravity hole' mystery,Feature Flash  

Sitemap

Top 主站蜘蛛池模板： 久久理论| 国产乱码一区二区三区 | 青青青国产视频手机 | 国产精品成人久久久 | 久操网在线 | 四虎影视精品 | 国产午夜精品一区二区三区嫩草 | 国产成人亚洲精品无码电影 | 狠狠色婷婷| 国产成人精品免费播放视频 | 日韩亚洲欧美一区 | 亚洲日韩欧美一区二区三区在线 | 韩国精品无码午夜福利视预 | 精品久久久无码21p发布 | 欧美日韩人成视频在线播放 | 国产黄三级三·级三级 | 色久综合网精品一区二区 | 国产精品裸体一区二区三区 | av中文字幕在线播放 | 2024av在线无码最新 | 永久精品日本无码 | 蜜臀av无码国产精品色午夜麻豆 | 午夜av内射一区二区三区红桃视 | 精品无码久久久一区二区三区 | 91久久无码视频一区二区 | 无码人妻精品一区二区 | 日日撸网站 | 欧美 精品国产制服第 | 男女做爰全过程免费现看 | 亚洲精品无码成人A片在线虐 | 亚洲国产日韩一区二区A片 亚洲国产日韩制服在线观看 | 无码AV一区二区三区在线观看 | 99久久久无码国产精品免费人妻 | av最新天堂网址 | 国产欧美亚洲精品第3页在线 | 亚洲av高清一区二区三区尤物 | 国产乱人视频免费观看 | 亚洲精品 | 久久久精品中文字幕综合 | 一个人看的www视频免费在线观看 | 精品偷拍的自拍的 |