Why is oil rainbow?

Score: 4.8/5 (50 votes) Most often seen in recently made puddles on the sides of roads, the oil refracts light much the same way a rainbow does. Simply p...

When to use trajectory?

Score: 4.6/5 (6 votes) 1) The missile deflected from its trajectory. 2) My career seemed to be on a downward trajectory. 3) The decision was certain to a...

Who are called fedayeen?

Score: 4.7/5 (3 votes) Palestinian fedayeen (from the Arabic fidā'ī, plural fidā'iyūn, فدائيون) are militants or guerrillas of a nationalist or...