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.
Finding Polaris means you know the direction north. Best of all, Polaris is readily found by using the prominent group of stars known as the Big Dipper, called the Plough in the UK, which may be the Northern Hemisphereâs most famous star pattern. To locate Polaris, all you have to do is to find the Big Dipper pointer stars Dubhe and