WebJan 23, 2024 · Last year, research hinted that the speed of Earth’s inner core rotation speed oscillates, gently swaying and swirling from one direction to another in a cycle. … WebJan 24, 2024 · January 24, 2024, 1:47 AM·2 min read. The way that the Earth ’s solid inner core layer rotates may have changed recently, slowing down in relation to the mantle, according to a new study. The research could further the understanding of how processes deep inside the planet affect its surface, including the length of a day, noted the study ...

Earth

WebJan 24, 2024 · Scott Sutherland. Seismic waves passing through the Earth have revealed that the inner core of our planet may have stopped rotating over the past decade, and its rotation could be in the process of reversing. At the centre of our planet is a solid mass of nickel and iron, crushed down by gravity into a sphere roughly 2,400 kilometres wide. WebThe study’s authors, Xiaodong Song and Yi Yang of China’s Peking University, said they found that the inner core’s rotation “came to near halt around 2009 and then turned in an opposite direction”. “We believe the inner core rotates, relative to the Earth’s surface, back and forth, like a swing,” they told AFP. the knitting shed

Earth

WebAt first, the inner core was thought to make a full revolution every 400 years, driven by electromagnetic torque and balanced by gravitational pull. But other scientists soon theorized that it spins much slower, taking … WebJan 24, 2024 · A magnetic field created by the outer core generates the spin and the mantle’s gravitational effects balance it out. Understanding how the inner core rotates could shed light on how all of the ... WebFeb 6, 2024 · Previous research has shown that the planet's inner core is separated from the rest of the Earth by a liquid metal outer core, meaning it can spin independently and not necessarily in sync with ... the knitting shack