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

Earth is a very large magnetic field, the magnetic field lines from the North Pole, the Earth's surface into the South Pole.

地球是一个无比巨大的磁场，其磁力线由北极出来，经地球表面而进入南极。

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