Tiny compasses could improve navigation, brain imaging and more
A new strategy for measuring magnetic fields could one day lead to a host of new quantum sensors—from tools that might map out the activity of the human brain to devices that could help airplane ...
The Scientist5y
Making Sense of Magnetic Navigation
Although Chinese explorers understood the principles of the compass earlier, it entered service in Europe in the 12th century. Other animals have been magnetic navigators for much, much longer. Many ...
Earth’s Magnetic Pole Has Officially Moved—Again
In mid-December of 2024, scientists officially updated the World Magnetic Model (WMM), which helps keep track of our planet’s ...
BBC4y
Detecting and drawing magnetic fields
A magnetic field is invisible, but it can be detected using a magnetic compass. A compass contains a small bar magnet on a pivot so that it can rotate. The compass needle points in the direction ...
PBS12y
When Compasses Point South
If all the compasses in the world started pointing ... Such reversals in the Earth's magnetic field, they'd tell you, are, roughly speaking, as common as ice ages. That is, they're terrifically ...
Business Insider India5y
Earth's magnetic north pole is skittering wildly across the Arctic. By 2040, our compasses 'will point eastward of true North,' an expert says.
Earth's magnetic north pole has been leading scientists on something of a wild goose chase. Over the last 40 years, the spot toward which all our compasses ... tug on different rubber bands ...