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Why Do Stars Twinkle? If youve ever glanced skyward on a clear evening, youve probably noticed with some wonderment the sheer numbers of stars. Some are tiny, barely visible points. Others radiate strong white light. And from our earthly vantage poin
(THEME) VOICE ONE: This is Nicole Nichols. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today we tell about discoveries of the past on the island of Saint John, in the United States Virgin Islands. Saint John
Making Contact 为什么戴隐形眼镜看东西更清楚? Don:I get contact lenses to replace my glasses and its like Im seeing the world through new eyes. Its miraculous ! Yal: Acutlly, Don, there is nothing miraculous about it. D: Who tell? Y: W
It Pays to Be an Optimist 做个乐观主义者 Research shows that whether a person is an optimist or a pessimist is related to their quality of life, including their physical health. The subjects involved first took personality tests in the 1960s a
What Came First, Language or Perception? Have you ever wondered what came first? Language or perception? Find out on this Moment of Science. Yael: Down,what came first? Language or Perception? Down:Hey!Is this one of those questions with no answer? Y
Body Dysmorphic Disorder Are you unhappy with your body? Learn about body dysmorphic disorder on this Moment of Science. Psychologists estimate that one to two percent of the population has what is called body dysmorphic disorder. These people obsess