The congressman charged that President Van Buren wore silk clothing, and even put French perfume on his body to make him smell sweet as a flower.

VOA: special.2009.01.22

You will learn in 8.02 that if you have a charged body changing direction, that constitutes an acceleration.

你们将在8。02中学到,如果一个带电体改变方向时，产生一个加速度。

麻省理工公开课 - 固态化学导论课程节选