Who knew that magnetic fields could be so useful? Astronomers are able to use magnetic fields to map our environment within ...

During a brief but dramatic chapter in Earth's history about 41,000 years ago, the planet’s magnetic field nearly collapsed.

A new study suggests the extinction of Neanderthals nearly coincided with a shift in Earth's magnetic field that let more ...

[Sun] [magnetic field] [solar reversal] [solar cycle] [space ... Low 'Captain America' star Anthony Mackie: 'We're lying to our kids' when we say success comes just from hard work—luck is ...

But, there may be another way, albeit a rather special case, where a magnet can not only be levitated, but locked in place using a rotating magnetic field. The video shows a demonstration of how ...

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 ...

Would a dramatic change in the Earth's magnetic field affect creatures that rely on it during migration? Late on a January night in 1993 I found myself on a beach on the Pacific coast of Costa ...

A permanent magnet is always magnetic. It has an invisible magnetic field. Only certain materials, such as iron, feel a magnetic force. Permanent magnets can come in lots of different shapes and ...

Get Instant Summarized Text (Gist) Micrometer-sized, flower-shaped structures made of a nickel-iron alloy can locally enhance magnetic fields by concentrating field lines at their center. The ...

When an electric current passes through a metal wire, a magnetic field forms around that wire (see diagram at right). Likewise, a wire passing through a magnetic field creates an electric current ...