What happens when you separate the North and South poles of a magnet? What happens when the axis of a bar magnet is placed along the magnetic meridian? What will happen when the axis of a bar magnet is placed along the magnetic meridian? What causes the magnetic field of the earth? What...
The way Carlo Laj tells it, the 1980s were a dead time for scientists studying Earth's peculiar habit of flipping its magnetic field every few hundred thousand years. Laj and other paleomagnetists spent the decade roving the world, accumulating records of times when the magnetic field reversed...
Describe what happens when a wave transfers energy. What are the units of work and energy? A light bulb converts electrical energy into What are the fixed energies of electrons called? How is electricity produced from magnetism? What is a changing magnetic field? What are some examples of pot...
What happens when you put an inductor and a capacitor in a circuit? Something kind of cool---and actually important. What is an inductor? You can make all sorts of different types of inductors, but the most common type is cylindrical coil of wire---a solenoid. When current runs through...
When this reconnection happens, the particles of the solar wind flood back towards Earth as they have nowhere else to go (Figure 8). Figure 8 – Magnetic lines reconnect © William Copeland Stage 4 –The particles rain down and interact with gasses in our atmosphere to create the light ...
The electric field component is responsible for capacitive coupling, whereas magnetism is responsible for inductive coupling. Capacitive coupling happens when two conductors are running very close to each other. The changing voltage in the source capacitively transfers the charge to the victim conductor....
That’s melodramatic enough. But has anyseriousconsideration gone into what happens when our efforts to detect cosmic intelligence pay off and we find a blip of a signal in the sea of radio noise that pours into the SETI antennas? Some think that addressing that question — even in a specul...
moon is that they occur as a result of the earth's shadow being cast upon the surface of the moon by the sun. In fact, it's much less common for the earth's shadow to appear on the moon due to the angle of the earth's tilt, and when this happens, it is known as an eclipse...
In a newly published study, researchers observe what happens during a quantum phase transition, and compare the “quantum melting” of the magnetic structure with the classical “thermal melting” phase transition. When ice is warmed, the water molecules forming its structure vibrate more and more ...
Earth has a magnetic field extending between the north and south poles. The planet's rotation around its axis and the movement of liquid iron inside the Earth contribute to creating the magnetic field. When an iron-rich minerals such as magnetite becomes hot enough it loses their magnetic prope...