Publish button
Download
Login to download. Need an ID and password? Register now!
CIÊNCIA: Pólo norte magnético da Terra está a mudar infographic
Responsive button
Adapt

Pólo norte magnético acelera rumo à Sibéria

02/06/2019
Graphic News

February 6, 2019 -- O pólo norte magnético está em movimento, obrigando a atualização de
emergência dos sistemas GPS, que precisam da sua localização precisa para funcionarem corretamente.

Earth’s magnetic North Pole is moving far faster than it has before, forcing scientists to issue an emergency update for the World Magnetic Model, critical to sea and military GPS navigation, as well as gadgets like smartphones.

It is normally updated every five years but the schedule has been pushed forward a year due to the accelerated rate at which the pole is moving.

The wandering magnetic north pole, which long jiggled above Canada and barely moved, is now moving 48km a year towards Siberia. Since the 1990s, the movement has accelerated from about 15km a year to 50-55km a year.

Earth’s magnetic field is generated mainly by movement of the liquid iron that makes up most of our planet’s core, some 3,000km beneath the surface. That movement causes the magnetic poles to shift, but the cause of recent acceleration remains unknown.


21 days to go until NEW GRAPHIC NEWS - a new website for a new era.

28 years ago — April 2, 1991 — the original Graphic News launched using a precursor to today’s websites that used email technology. These enabled infographics to be delivered electronically around the world over telephone lines. What was possible was very limited - It took 10 minutes for a 100K file to download.

Since then delivery speeds and website technology have moved on. The new website will offer the best online experience possible now, adding many new features (and offering new opportunities for the future), but still enabling existing users to select and download infographics and enjoy the distinct brand of visual journalism that is Graphic News.


Over the coming days I will give further information. Please contact me if you have any questions. Fiona Roberts, froberts @ graphicnews.com



Cookies