Members of the Harvard Family: Here in the Yard is one of the great collections of intellectual talent in the world. 哈佛是一个大家庭。这个院子里在场的人们，是全世界最有智力的人类群体之一。 For what purpose? 我们可以做些什么？ There is no questi
And the trick here is to use a single, readable sentence that the audience can key into if they get a bit lost, 这里的窍门就是使用简单、易读的句子，让观众即使有点儿不明白也能够掌握要点， and then provide visuals which appeal to our other
Caring For Nature--Overpopulation What is nature? It’s everything that exists in the world independently of people, such as pants and animals, earth and rocks, and the weather. Now more and mo
人体通过晒太阳来合成维生素D，可是皮肤科医生理查德·威勒指出，阳光还可以带来另一个惊人的益处。他的团队通过新研究表明：一氧化氮这种大量储存在皮肤中的化学传递质，能通过紫外线照射而释放出来，对血压和心血管系统产生很大益处。这是什么意思呢？那好，就从解释为什么苏格兰人比澳大利亚人更容易生病开始吧…… 演讲（无字幕）： Richard Weller: Could
