Skip to playerSkip to main content
  • 5 hours ago
Earth has a magnetic field, including two magnetic poles North and South. However, despite it being a seeming constant, experts say humans have been tracking those points for centuries and they are actually moving.

Category

📚
Learning
Transcript
00:00earth has a magnetic field including two magnetic poles north and south however despite it being a
00:09seeming constant experts say humans have been tracking those points for centuries and they
00:14are actually moving this is nothing new with experts having tracked the magnetic north to
00:18the northern coast of canada and more recently into the atlantic ocean in the 90s however now
00:23it's on the move again heading towards siberia in russia historically the magnetic north pole
00:28has moved at a rate of around six miles per year however since the turn of the century it's sped
00:33up experts say at that point it started moving at a rate of around 34 miles per year slowing down to
00:3822 miles a year more recently so is this going to literally throw off every compass on the planet
00:43well yes and no the position of true north versus the magnetic north pole will certainly be at odds
00:49however those using traditional compasses should be aware of magnetic declination and adjust
00:53accordingly for the rest of us digital pathfinding using gps is adjusted by the british geological
00:59survey and the u.s national oceanic and atmospheric administration so no need to worry the magnetic
01:04north pole moves because the earth's innards are liquid meaning its outer core has a constantly moving
01:09layer of conductive material which generates an electric current
Be the first to comment
Add your comment

Recommended