Birds, turtles and even bacteria Orient to the earth's magnetic field lines.

鸟、乌龟甚至细菌都是通过地球磁场线来定位的。

youdao

The most plausible explanation involves electrical currents along the magnetic field lines.

最合理的解释涉及到沿着磁场线的电流。

youdao

Just as iron filings arc from one end of a magnet to another, the plasma is sliding in an arc along magnetic field lines.

等离子体在弧形内沿着磁力线滑动，和铁屑在磁体两极之间呈现的弧形一样。

youdao

The magnetic field lines are like the two lanes of traffic on a busy road: close together, but pointing in opposite directions.

ECONOMIST: Hot stuff

The same thing happens with the magnetic field lines, which suddenly reconnect, resulting in a hole a few kilometres wide in the armour of the magnetosphere, through which plasma can spill.

ECONOMIST: Hot stuff

There seems to be no way that particles streaming past the earth along magnetic field lines can make a turn, move at right angles to those lines for a bit and end up inside the magnetosphere.

ECONOMIST: Hot stuff