A flower-shaped structure only a few micrometers in size made of a nickel-iron alloy can concentrate and locally enhance ...
One way to get moving charges is to run electric current through a wire. (This is literally a stream of electrons.) This will create a magnetic field, and other wires with electric current will ...
A wild idea has been proposed to generate electric power from Earth’s rotation with the help of magnetic fields. A new ...
Reader Jayant Bhalerao, a college physics instructor, found the story useful in class: “We will share it with our students, so that they can appreciate how ...
Nearly two centuries after Faraday's failed attempts, scientists have demonstrated that Earth's continuous spin can directly ...
By the end of the Civil War, in 1865, a network of telegraph lines linked the ... forms when electric current flows through a wire and produces a magnetic field around the wire.
Advanced materials with finely tuned electric and magnetic properties ... and could allow us to achieve magnetic field observations with atomic-level resolution.” ...
Bar magnets and horseshoe magnets are two of the most common shapes of magnet. The magnetic field is shown by lines with arrows that point from north to south. You can tell how old some coins are ...
With today’s data rates of only a few hundred megabytes per second, access to digital information remains relatively slow.
If these metals have not been turned into a permanent magnet they will still be attracted to a magnet if placed within a magnetic field ... Magnetic fields lines are invisible but they fill ...
the angle at which magnetic field lines intersect the Earth. The turtles use these two pieces of information, which vary at every point on the planet's surface, as navigational markers that help ...