At its lowest point, the field strength fell to below 10 percent of today’s levels, leaving Earth exposed to dangerous cosmic radiation and solar winds. Usually, the magnetosphere acts as a protective ...

Our first meeting was a bit awkward. One of us is an archaeologist who studies how past peoples interacted with their ...

"Changing position of the bar magnet varied the strength of magnetic field over 1-10G," Shaw said. "This observation in such a low range of magnetic field was surprising." ...

The magnetic field lines of a bar magnet can be viewed by using compasses or by shaking iron filings onto a platform above the magnet. Details Equipment [1] Bar magnet [1] Shaker of iron filings [3] ...

Magnetism and Matter -Magnetic Field Due to Bar Magnet . These field lines are developed to visualize the effect of the magnetic field. If we imagine a number of small compass needles around a ...

Most assumed that the field was similar to Earth's with magnetic force lines exiting one pole of the planet and re-entering at the other pole, creating north and south poles similar to a bar magnet.

Two geophysicists and an archaeologist teamed up to connect space weather 41,000 years ago to human behaviors that might have been in response – and show the value in cross-discipline teamwork.