Hostile Witness. A witness at a trial who is so adverse to the party that called him or her that he or she can be cross-examined as though called to testify by the opposing party. The Federal Rules of Evidence provide that witnesses who are hostile, or adverse, can be interrogated through the use of leading questions. hostile witness
Polar wander. Polar wander is the motion of a pole in relation to a fixed reference frame. It can be used, for example, to measure the degree to which Earth's magnetic poles have been observed to move relative to the Earth's rotation axis.
The end of the line is here. The Polar drivers face the long, difficult journey back down the world's longest seasonal winter road. Lisa has to make a game-changing decision...help a competitor push further into the arctic unknown or stick with her teammates and convoy back to Polar headquarters.