科学研究   

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Steve: Dr. Marantz, good to talk to you today. Marantz: Hi, Steve. Steve: Very interesting paper you have here, "A Call for Higher Standards of Evidence for Dietary Guidelines." Let's cut right ...

Steve：Marantz 博士，很高兴今天与您交谈。 Marantz：您好，Steve。 Steve：您这里有一篇非常有趣的论文，“呼吁为膳食指南提供更高标准的证据”。让我们直接切入正题，然后我们稍后再回过头来;但你的基本论点...

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A, C, G, and T. Adenine, cytosine, guanine, and thymine. These are the four chemical building blocks of the DNA molecule. They are components of nucleic acid, which gives DNA its ton...

A、C、 G 和 T. 腺嘌呤， 胞嘧啶、鸟嘌呤和胸腺嘧啶。 这四 化工建筑 DNA 分子的块。 它们是组件 核酸，其中 让 DNA 绕口令 全称 DeoxyriboNucleic 酸。

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Squyres: Spirit is now hunker[ed] down due to winter. Spirit is deep in the southern hemisphere of Mars and what that means is winter is pretty tough, and so what we've done is we have parked the vehi...

Squyres：由于冬天，Spirit 现在陷入困境。Spirit 位于火星南半球的深处，这意味着冬天非常艰难，因此我们所做的是将车辆停在朝北的斜坡上，将太阳能电池板向太阳倾斜。火星上的变化会随着季节的变化而变化，变化是天气系统出现的结果。...

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Have you ever been in an argument about nuclear power? We have, and we found it frustrating and confusing, so let’s try and get to grips with this topic. [Intro] It all started in the 1...

你有没有争吵过 关于核能？ 我们做到了，也找到了 令人沮丧和困惑， 因此，让我们试着掌握 与本主题。 [介绍] 这一切都始于 1940 年代。 战争的震惊和恐怖之后 以及原子弹的使用， 核能有望成...

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Steve: Hi Dr. Gaby, how are you? Gaby: I'm very well, thanks Steve. Steve: Enjoying the cruise? Gaby: I am having a terrific time. Yeah, this is too much fun. It's going to be hard to go home...

Steve：您好，Gaby 博士，您好吗？ Gaby：我很好，谢谢 Steve。 Steve：喜欢游轮吗？ Gaby：我度过了一段美好的时光。是的，这太有趣了。回家会很困难。 Steve：这很有趣。所以，你基本上是在...

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So at equilibrium, at your normal weight, leptin is made and you're eating different types of food. Now let's imagine you were starving or you went on a diet, your fat mass would contract ...

因此，在平衡时，在 体重正常，瘦素 你正在吃 不同类型的食物。 现在让我们想象一下你是 挨饿或节食， 你的脂肪量会收缩 而且你产生的瘦素会更少。 这就是现在的状态 这导致脂肪减少。 所以你吃得少了， ...

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The Universe is incredibly big and seems full of potential for life, with billions of habitable planets. If an advanced civilization had the technology to travel between the stars, at just 0.1% of ...

宇宙非常大，而且似乎很满 具有生命的潜力，拥有数十亿的宜居 行星。 如果一个先进的文明拥有这项技术 在星际之间旅行，只需 0.1% 它能以光速殖民我们的 星系大约需要 1 亿年。 考虑到数十亿，这并不长 银河...

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Simon: We have a theory right now called cold dark matter, which describes the structure of the universe on large scales and how galaxies form within that structure; and so when you look at the univer...

Simon：我们现在有一个理论叫做冷暗物质，它描述了大尺度宇宙的结构以及星系是如何在该结构中形成的;所以，当你观察宇宙，遥远的宇宙时，该理论的预测与观测非常吻合，这真的很了不起。问题在于，当我们真正放大并详细观察单个星系时，我们开始发现理论...