This week marked an historic moment in the life of our country and our military. For nearly nine years, our nation has been at war in Iraq. More than 1.5 million Americans have served there with honor
Now if you use the right kind of atoms and you get them cold enough, something truly bizarre happens. 如果使用正确的原子，并让其足够冷却，奇迹就会发生。 It's no longer a solid, a liquid or a gas. It enters a new state of matt
Hi, everybody. I've got a special guest with me this week-Macklemore. For those of you who don't share the same love[i] for hip-hop, he's a Grammy-winning artist-but he's also an advoc
