Hi everybody. This weekend, we'll dedicate the newest American icon on our National Mall - the National Museum of African American History and Culture. It's a beautiful building, five stories
In order to convert this opaque, 90,000 hours of video into something that we could start to see, 为了把这个9万小时的录像变成我们能识辨的东西 we use motion analysis to pull out, as we move through space and through time,
Alright, I want to tell you how I got my superpowers through fatherhood. 好了，我来分享一下我如何通过父亲的角色获得超能力的。 I was working a job I hated, OK? 我曾经从事一份并不喜欢的工作。 And I don't know if anyone here ever worked a job t
如视频未出现,请稍候,因为FLASH播放器正在加载中。。 THE PRESIDENT: Good morning. For more than a week, the people of the nation of Georgia have withstood assault from the Russian military. The world has watched with alarm a
