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Using a magnetic compass to calculate current in a wire

Using a magnetic compass to calculate the current in a wire. Learn how magnetic fields, compass deflection, and basic electromagnetism principles connect in a practical physics experiment. #MagneticFi ...

Commonwealth Fusion Systems installs reactor magnet, lands deal with Nvidia

The fusion power frontrunner said that construction on its Sparc reactor was proceeding as planned. Meanwhile, it's building ...

A Mysterious Weak Spot in Earth’s Magnetic Field Has Grown Nearly Half the Size of Europe

Long-term satellite measurements show that Earth’s magnetic field is changing faster and more unevenly than expected, driven ...
The New York Times

In Pursuit of the Monarch’s Magnetic Sense

The magnetic compass is the last unknown sense in migrating animals. For some scientists, the monarch butterfly is leading the way. The magnetic compass is the last unknown sense in migrating animals.
Seeking Alpha

Compass Diversified stock jumps after full access to $100M credit line restored

Compass Diversified (CODI) stock popped 8.7% in Monday midday trading in the first trading session since the holding company amended its credit agreement to get full access to its $100M revolving ...
Smithsonian Magazine

A Weak Spot in Earth’s Magnetic Field Is Growing, but Scientists Say Not to Worry. Here’s a Look at What Shields Us From Space Weather

Our planet’s magnetosphere has seen dramatic shifts across its history—even total reversals—but this recent wrinkle doesn’t pose a threat to life Earth’s magnetic field surrounds the planet, with ...
Forbes

Earth’s Magnetic Field Is Weakening Over The Atlantic Ocean

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. Nov 28, 2025, 07:59am EST Map of the strength of the Earth's ...
earth

Pigeons navigate using a ‘dark compass’ buried in the inner ear

Homing pigeons can fly hundreds of miles and still land on the same rooftop. Scientists have long suspected that these birds carry an invisible compass, yet the physical sensor behind it has stayed ...
Phys.org

An electric discovery: Pigeons detect magnetic fields through their inner ear

"The cells we describe are ideally equipped to detect magnetic fields using electromagnetic induction—enabling pigeons to find their way home using the same physical principle which permits the ...
EurekAlert!

Mystery of how turtles read their magnetic map solved: they feel the magnetism

Loggerhead turtles are able to sense the Earth’s magnetic field in two ways, but it wasn’t clear which sense the animals use to detect the magnetic field when navigating using the magnetic map they ...
Space.com

Scientists find a surprising twist in Earth's magnetic field

Simulations and satellite data reveal that Earth's magnetic field is more complex than scientists had thought. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...
Popular Mechanics

Part of Earth’s Magnetic Field Is Backward. Scientists Just Figured Out Why.

Here’s what you’ll learn when you read this story: The Earth’s magnetosphere protects life from deadly space radiation, but many aspects of its function remain a mystery. Scientists have long believed ...