Total tissue water responded as predicted by van't Hoff's osmotic relation to H2O?diluted seawater but was not clearly affected by the admixture of seawater with isosmotic MgSO4, suggesting that this solution may act as an isotonic medium.
Disturbance of symmetry results in a net electron current; a pulse of electromagnetic radiation is emitted which is strongest in directions per- pendicular to the net current.
Why the Magnetic Force Is Strongest at the North and South Poles. Iron filings make a pattern tracing field lines because each bit of iron is itself a tiny dipole. The force the dipole experiences is proportional to the strength of the dipole and the rate at which the magnetic field changes. The dipole tries to align itself with a magnetic field, but at the ends of a bar magnet, the field lines are very close together.