What keeps ur feet on the ground?!

Alsalam alikom wa ra7mat Allah wa barakatoh,

The compass has been around since at least the 12th century, but scientists still don't know exactly how the Earth generates the magnetic field that keeps a compass needle pointing north.
Morning Edition, June 2, 2008 ·

One of the questions I kept thinking about A LOT is how does the earth generate that special magnetic field... what I was really wondering about is how weak it was, you can lift a 50kg +ve magnet rock and it'll feel the same as a 50kg -ve magnet rock!! ... and at the same time you can't jump more than 2 meters up... I was also imagining, if it's really a magnetic field as we know today, can we build a board with a very powerful opposite magnetic field to let us flyyy? I got no answers... Sob7ana Allah!

According to npr, a geophysicist from University of Maryland is trying to build a small model for a planet, give it a high spin speed and hope it will generate its own magnetic field.

He is planing to fill it with a liquid Sodium -as scientists believe earth has a big ball of liquid metal in its center-...

let's hope no one drops any water on the Sodium or else it'll be the end of such an interesting experiment!

Where I got the story: Slashdot link
Original Story: NPR

Thanks

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