Earth's solid inner core may have changed how it spins, new research claims, which could have drastic effects on our planet.
Published Jan 24th, 2023 1:08PM ESTclaims that the Earth’s inner core may have changed how it spins. The inner core, which is believed to be made mostly of iron, is surrounded by a liquid shell of iron and other elements. For decades, scientists believe this liquid core has allowed the more solid inner core to spin separately from the Earth’s mantle. Now, though, that spin appears to have changed.
To fully understand the changes, let’s jump back to 1936 when researchers first discovered the Earth’s inner core. The researchers were studying how seismic waves from earthquakes traveled through the planet at the time. The changes in the speed of those waves helped them determine that Earth had a solid inner core surrounded by liquid.
Even more intriguing, though, is that this new study claims that the Earth’s inner core has halted its spin relative to the mantle. To discover this, the researchers look at earthquakes between 1995 and 2021. They found that in 2009, the inner core’s super-rotation appeared to have ceased and hasn’t started up again. Further, we’ve even foundThe data, then, could hint that the inner core is in the process of shifting back to a subrotation, the researchers say.
日本 最新ニュース, 日本 見出し
Similar News:他のニュース ソースから収集した、これに似たニュース記事を読むこともできます。
Earth’s inner core may be reversing its rotationIn the past 13 years, the rotation of the planet’s solid inner core may have temporarily stopped and then started to reverse direction.
続きを読む »
Has Earth’s inner core stopped its strange spin?Many scientists think that the inner core spins faster than the rest of the planet — but sometime in the past decade, according to a study, it apparently stopped doing so.
続きを読む »
Earth's Inner Core May Right Now Be in The Process of Changing DirectionFew of us give much thought to Earth's swirling, spinning contents until some sudden movement, an earthquake or a volcanic eruption, jolts us to our senses.
続きを読む »
Earth’s Inner Core May Be Reversing Its Rotation, Study FindsEarth’s inner core may have reversed its rotation, potentially shortening the length of the day by a fraction of a millisecond over the course of a year
続きを読む »
Earth's inner core rotation may have paused and possibly reversedThe discovery of the possible pause and reversal in the inner core rotation could have significant implications for understanding the Earth's surface system.
続きを読む »