Experts at the Denver Museum of Nature and Science made the "Black Holes" movie.

VOA: special.2010.09.29

We even have entire disciplines like economics and psychology and I dare even say modern political science that reinforced this view of human nature.

看吧，我们有一整套经济学,和心理学的理论服务于个人,而且我敢说，在现代政治科学上,更是强调了人的个体特性。

耶鲁公开课 - 政治哲学导论课程节选

Today we tell about the beauty and science of orchids, some of nature's most interesting flowers.

VOA: special.2010.04.06