Biological Sciences Division Research Highlights Scientists Show How Bacteria Move Electrons Across a Membrane
What do a wrecking yard, a rock concert and your front door have in common? They each use electromagnets, devices that create a magnetic field through the application of electricity. Wrecking yards employ extremely powerful electromagnets to move heavy pieces of scrap metal or even entire cars fr...
What is the shape of a magnetic field? What determines the strength of a magnetic field? Has the magnetic field of the Earth flipped? What is the unit of magnetic field strength? How do neutral particles move in a magnetic field?
What do a wrecking yard, a rock concert and your front door have in common? They each use electromagnets, devices that create a magnetic field through the application of electricity. Wrecking yards employ extremely powerful electromagnets to move heavy pieces of scrap metal or even entire cars fr...
How does electric current flow in a circuit? Why do electrons move in a circuit? How can objects become electrically charged? How a magnetic field is produced by moving charges. What creates an electric force field that moves electrons through a circuit?
Domain walls, or borders between the neighboring domains, physically move to accommodate domain growth. In a strong magnetic field, some walls disappear entirely. The resulting magnet's strength depends on the amount of force used to move the domains. Its permanence, or retentivity, depends on h...
How do you figure out which way the electrons will move? You can work out the direction of the Lorentz force with Fleming's left-hand rule (if you correct for conventional current) or his right-hand rule (if you don't). Artwork: Charged particles moving in a magnetic field experience ...
The nail would move half a turn and then stop in the position shown. You flip the magnetic field by changing the direction of the electrons. HowStuffWorks The key to an electric motor is to go one step further so that, at the moment that this half turn of motion completes, the ...
Slices can be taken of any part of the body in any direction, giving doctors a huge advantage over any other imaging modality. That also means that you don't have to move for the machine to get an image from a different direction -- the machine can manipulate everything with the ...
According to the American Cancer Society,“RF radiation doesn’t have enough energy to remove charged particles such as electrons (ionize), and so is called non-ionizing radiation. Non-ionizing radiation has enough energy to move atoms in a molecule around or cause them to vibrate, which can ...