With losses in races being worse than they were according to many reports, this might be worth a read.
It is thought that the magnetic fields are used by the pigeons in homing. If the fields are moving?
Scientists have found that the Earth's inner core, a hot and dense ball of iron and nickel, has recently slowed its spinning compared to the planet's surface. It might seem like the core is spinning backward, but researchers say it’s actually moving back and forth in a cycle that happens about every 70 years. By studying seismic waves from earthquakes since the 1960s, experts at Peking University noticed this change, with a key shift around 2009. This discovery shows that the core doesn’t always spin faster than the Earth’s surface, as previously thought, but instead follows a more complicated pattern.
Even though these small changes in the core might not seem important, they affect the Earth’s magnetic field, which shields us from solar radiation and helps with navigation. The North Magnetic Pole has been moving quickly from Canada toward Siberia in recent years, and scientists think the core’s slowing motion might be part of the reason. While the full effects of this slowdown aren’t clear yet, this study shows how closely connected the Earth’s deep interior is to the surface world.
