9:52 So, what is the GMT project? I

9:52 So, what is the GMT project? It's an international project. It includes Australia, South Korea, and I'm happy to say, being here in Rio, that the newest partner in our telescope is Brazil.
10:05 (Applause)
10:10 It also includes a number of institutions across the United States, including Harvard University, the Smithsonian and the Carnegie Institutions, and the Universities of Arizona, Chicago, Texas-Austin and Texas A&M University. It also involves Chile.
10:31 So, the making of the mirrors in this telescope is also fascinating in its own right. Take chunks of glass, melt them in a furnace that is itself rotating. This happens underneath the football stadium at the University of Arizona. It's tucked away under 52,000 seats. Nobody know it's happening. And there's essentially a rotating cauldron. The mirrors are cast and they're cooled very slowly, and then they're polished to an exquisite precision. And so, if you think about the precision of these mirrors, the bumps on the mirror, over the entire 27 feet, amount to less than one-millionth of an inch. So, can you visualize that? Ow!
11:15 (Laughter)
11:16 That's one five-thousandths of the width of one of my hairs, over this entire 27 feet. It's a spectacular achievement. It's what allows us to have the precision that we will have.
11:31 So, what does that precision buy us? So the GMT, if you can imagine -- if I were to hold up a coin, which I just happen to have, and I look at the face of that coin, I can see from here the writing on the coin; I can see the face on that coin. My guess that even in the front row, you can't see that. But if we were to turn the Giant Magellan Telescope, all 80-feet diameter that we see in this auditorium, and point it 200 miles away, if I were standing in São Paulo, we could resolve the face of this coin. That's the extraordinary resolution and power of this telescope. And if we were --
12:17 (Applause)
12:21 if an astronaut went up to the Moon, a quarter of a million miles away, and lit a candle -- a single candle -- then we would be able to detect it, using the GMT. Quite extraordinary.

Results (English) 3:

9:52，GMT项目是什么？这是一个国际项目。它包括澳大利亚，韩国，我很高兴地说，在里约，在我们的望远镜最新的合作伙伴是巴西。
10:05（掌声）
10:10还包括一些在美国的机构，包括哈佛大学，史密森和卡耐基机构，以及亚利桑那州大学，芝加哥，德克萨斯和德克萨斯的&M大学奥斯丁。它还涉及到智利。
10:31所以，在望远镜的反射镜的制作是引人入胜的在自己的权利。取大块的玻璃，把它们熔化在一个旋转的熔炉里。这是发生在亚利桑那大学足球场的下面。它藏在52000个座位下面。没有人知道它正在发生。在本质上是一个旋转的大锅。镜子是铸造的，它们被冷却得很慢，然后被打磨得很精致。所以，如果你想这些镜子的精度，镜子上的突起，超过整个27英尺，量不到一百万分之一英寸。所以，你能想象吗？自己的！
11:15（笑声）
11：16那是千分之一五的我的一根头发的宽度，在这整个27英尺。这是一个惊人的成就。是什么让我们有，我们有精度。
11:31这样，精度我们买什么？所以如果你能想象到，如果我是拿着一枚硬币，我正好有一枚硬币，我看到了那枚硬币的面，我可以从这里看到硬币上的文字；我能看到那枚硬币的面。我想即使在前排，你也看不到。但是如果我们把所有的巨型麦哲伦望远镜，直径80英尺，在观众席上看到我们，点200英里远，如果我站在ã圣保罗，我们可以解决这枚硬币的脸。这是非凡的分辨率和功率的望远镜。如果我们
12:17——（掌声）
12:21如果宇航员去月球，一季度有一百万英里远，并点燃了一根蜡烛——蜡烛——那么我们就能够发现它，用
GMT非同寻常。