And, she added, the fights over the direction of the field are healthy.
The tubules also align themselves with the direction of the field.
And because it cannot just shed its energy of movement, it is forced to travel faster and faster in the direction of the field.
Each time the particle crosses the gap between the dees, it is accelerated, because in the time between these crossings the direction of the field reverses.
When this results in a net positive magnetization in the direction of the field, the substance has a positive susceptibility and is classified as paramagnetic.
When hydrogen atoms are placed in a magnetic field, their nuclei (protons) tend to have their magnetic moments preferentially aligned in the direction of the field.
Certain molecules, like water, have regions of partial positive and negative charge which in the presence of an electric field rotate to align themselves in direction of the field.
The new report is likely to inflame a debate over the direction of the field itself, which has found that the genetics of illnesses like schizophrenia and bipolar disorder remain elusive.
If the dust grains are paramagnetic so that they act somewhat like a magnet, then the general magnetic field, though very weak, can in time line up the grains with their short axes in the direction of the field.
Observations of declination made in London since 1540, for example, show that the direction of the field at that site has nearly completed a full cycle with a peak-to-peak amplitude of 30°.
They find it extremely hard to move at right angles to the "field lines" that physicists draw to represent the direction of the field, but have no trouble moving parallel to them.
