Earth’s magnetic north pole has officially moved

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This map shows the new location of the magnetic North Pole (the white star). NOAA NCEI/CIRES

Earth’s magnetic North Pole has drifted so fast that authorities have had to officially redefine the location of the magnetic North Pole. The extreme wandering of the North Pole caused increasing concerns over navigation, especially in high latitudes.

Earth’s magnetic field is known to have wandered and flipped in the geologic past. Earth’s magnetic field is a result of spinning molten iron and nickel 1,800 miles below the surface. As the constant flow of molten metals in the outer core changes over time, it alters the external magnetic field.

What we’ve seen in the past hundred years is that the location of the magnetic North Pole has moved northward. That migration of the magnetic North Pole was switched into overdrive in the past few years, causing the pole to rapidly move. The increased speed with which the magnetic North Pole has moved prompted authorities to officially update its location. The official location of the magnetic poles is specified by the World Magnetic Model, which acts as the basis for navigation, communication, GPS, etc. around the globe.

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NASA’s ‘impossible ‘ space engine tested-here are the results

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The first independent tests of the EmDrive suggest there’s a mundane explanation for the wildly controversial device.

Spaceflight is hard. Blasting heavy cargo, spacecraft, and maybe people to respectable speeds over interplanetary distances (not to mention the luxury of stopping at destinations) requires an amount of propellant too massive for current rockets to haul into the void.

That is, unless you have an engine that can generate thrust without fuel.

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Scientists design a novel magnetic cloaking device

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Scientists have just created the antimagnet.

Scientists from the Universitat Autònoma de Barcelona designed a magnetic cloak that’ll both shield an object from an outside magnetic field and prevent an internal one from leaking out. It’s an antimagnet and it’ll have various military and medical applications.

The antimagnet uses a superconducting material that blocks the internal magnetic field of an object and several dampening layers to block the effect of the superconductor on the external magnetic field. Sounds complicated, and it is, but it could save your life some day…

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