A flower-shaped structure only a few micrometers in size made of a nickel-iron alloy can concentrate and locally enhance ...
A wild idea has been proposed to generate electric power from Earth’s rotation with the help of magnetic fields. A new ...
They follow the magnetic field lines and, therefore ... but they have a higher density and produce an electric current that surrounds the Earth. Electrons move from the twilight zone to the ...
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 ...
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 ...
With today’s data rates of only a few hundred megabytes per second, access to digital information remains relatively slow.
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 ...
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 ...
Advanced materials with finely tuned electric and magnetic properties ... and could allow us to achieve magnetic field observations with atomic-level resolution.” ...
Then it talks about charges and the field around them. If the charge moves at a constant speed, it also has a constant electric field around it. However, if the charge accelerates or decelerates ...
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 ...