When a team of archeologists recently came across some 15,000-year-old human remains, they made an interesting discovery: the teeth of those ancient humans were riddled with holes. So what causes cavities, and how can we avoid them? Mel Rosenberg takes us inside our teeth to find out. [Directed by Andrew Foerster, narrated by Addison Anderson, music by Devin Polaski].
一队考古学家发现了距今约15000 年的人类遗骸，并有了一个有趣的发现：这些远古人类的牙齿上布满了蛀洞。那么，蛀牙究竟是如何形成的？我们又该如何预防？梅尔・罗森伯格（Mel Rosenberg）将带我们深入牙齿内部一探究竟。

First impressions matter, so how do you make yours count? Communication consultant Rebecca Okamoto outlines five simple ways to introduce yourself in 20 words or fewer, setting up any interview or conversation for those three crucial words: "Tell me more."
第一印象很重要，你怎么能让你的第一印象有效呢？沟通顾问瑞贝卡·冈本（Rebecca Okamoto）带来了 5 个让你以不到 20 字介绍自己的简单小方法，让你在面试或对话中听到这四个关键字：“展开讲讲。”

It’s just before dawn in 1906 at Wroxton Abbey, and 16-year-old Alice Sutton’s mind is already spinning. The underhousemaid has a full day ahead of her as the estate prepares for the evening’s guest: Prince Arthur. This is Alice’s chance to prove herself to her new employers — but there are other forces at play. Stephanie Honchell Smith details a day in the life of a servant in Edwardian England. [Directed by Anton Bogaty, narrated by Bethany Cutmore-Scott, music by Cem Misirlioglu, WORKPLAYWORK].
1906 年，沃克斯顿修道院的黎明前夕，16 岁的爱丽丝·萨顿（Alice Sutton）早已思绪翻涌。作为一名二等女仆，她即将迎来忙碌的一天，因为庄园在为当晚的贵客亚瑟王子的到来做准备。这对爱丽丝来说，是向新雇主证明自己的机会，然而，还有其他力量正在悄然推动事态的发展。 斯蒂芬妮·洪切尔·史密斯（Stephanie Honchell Smith ）讲述了爱德华时代英格兰一名仆人的一天。

AI is setting up residence in the final frontier, says technologist Philip Johnston. He shares the incredible work being undertaken to build data centers in outer space — and how they might harness both solar power and frigid temperatures in order to address the AI energy challenge. Learn more about the affordability of this wild idea and how it could address concerns about the resources needed to keep up with the AI boom.
AI 已经进驻最远的边疆，技术专家菲利普·约翰斯顿（Philip Johnston）如是说道。他分享了为了在外太空建造数据中心，做了哪些了不起的工作，他们如何利用太阳能和极低温攻克 AI 能源挑战。来了解我们如何负担得起这个大胆的想法，它又会如何解决 AI 爆发所需的资源顾虑。

How do you build a lifetime of love? After analyzing 450 couples across more than 40 countries, relational psychotherapist Sara Nasserzadeh discovered six essential ingredients for successful relationships (hint: it's not just about sexual chemistry). Learn more about "emergent love" — a new, evidence-based model for fostering the love you desire.
美好的关系如何久久长长？在分析来自 40 个国家的 450 对佳偶后，关系心理学家莎拉·娜瑟扎达（Sara Nasserzadeh）发现成功伴侣的六项关键元素。（不只是性吸引力！）

The recent generations have been bathed in connecting technology from birth, says futurist Don Tapscott, and as a result the world is transforming into one that is far more open and transparent. In this inspiring talk, he lists the four core principles that show how this open world can be a far better place.
未来学家唐·塔普斯科特（Don Tapscott）表示，新生代从出生起就沉浸在互联科技之中，正因如此，世界正变得愈发开放与透明。在这场发人深省的演讲中，他阐述了四大核心理念，揭示了这个开放世界如何能变得更加美好。

Can anyone become happier? Psychologist Sonja Lyubomirsky studies this question in her lab, doing experiments on "happiness interventions" to see what kinds of actions elicit this sought-after emotion. In a quick talk, she shares the results of her work: a small shift that can change your relationships and put you on the path to happiness.
任何人都能变得更快乐吗？心理学家索尼娅・柳博米尔斯基（Sonja Lyubomirsky）在她的实验室里研究了这个问题，她通过开展 “幸福干预” 实验，探寻哪些行为能唤起人们苦苦追寻的幸福感。在一场简短的演讲中，她分享了自己的研究成果：一个小小的转变，就能改变你的人际关系，并带你走上通往幸福的道路。

Psychologist Elizabeth Loftus studies memories. More precisely, she studies false memories, when people either remember things that didn't happen or remember them differently from the way they really were. It's more common than you might think, and Loftus shares some startling stories and statistics -- and raises some important ethical questions.
心理学家伊丽莎白·洛夫特斯（Elizabeth Loftus）是研究记忆的。更确切地说，她研究错误的记忆，当人们记得根本没发生的事时，或者记得根本不同的事时的错误记忆。错误记忆的发生比你想得要常见得多，洛塔斯将分享一些令人吃惊的故事和统计结果，并提出一些需要我们思考的、重要的道德问题。

伊丽莎白·洛夫特斯揭示了记忆并非可靠不变，而是具有可变性，由此改写了法律发展的进程。自 20 世纪 70 年代起，洛夫特斯产出了一系列令人瞩目的学术研究成果，还以专家证人的身份现身数百个法庭：为那些因目击证人证词而面临刑事指控的被告助力辩护，同时驳斥了当时盛行的 “恢复性记忆” 理论，其与凯瑟琳·凯查姆合著的《被压抑的记忆之谜：虚假记忆与性虐待指控》便是这一主张的代表作。

此后，洛夫特斯一直致力于探究虚假记忆对日常生活的影响，这一研究也让她发掘出记忆改造颇具突破性的临床应用价值 —— 其中就包括通过为患者植入对健康食品的偏好，来实现对肥胖问题的干预。

How you respond to setbacks is what defines your character, says Stacey Abrams, the first Black woman in the history of the United States to be nominated by a major party for governor. In an electrifying talk, she shares the lessons she learned from her campaign for governor of Georgia -- and some advice on how to change the world. "Be aggressive about your ambition," Abrams says.
如何应对挫败定义了你的性格。史黛西·艾布拉姆斯(Stacey Abrams)是美国历史上第一位被主要政党提名为州长的黑人女性——她在那场激烈的竞选中失败了，但正如她所说:唯一的选择就是继续前进。在一场激动人心的演讲中，她分享了自己在竞选乔治亚州州长过程中获得的经验教训，如何改变世界的一些建议，以及对她下一步行动的一些暗示。艾布拉姆斯说:“要有野心。”

The Viking Age. When medieval, horn-helmeted Scandinavian men ravaged Europe, scribbling mysterious runes and toasting their victories in goblets forged from enemy skulls before bidding farewell in fiery funerals. Except… that’s not quite how it went. So, what were the Vikings actually like? Stephanie H. Smith debunks common misconceptions about the time period. [Directed by Avi Ofer, narrated by Alexandra Panzer, music by Cem Misirlioglu, WORKPLAYWORK].
维京时代。在那个时代，中世纪戴着牛角头盔的男子掠夺了欧洲，书写神秘的卢恩符文，高举用敌人头骨铸成的杯子为胜利干杯，接着在烈火葬礼中道别。只是，实情并非完全如此……所以，真正的维京人是什么样子的？史蒂芬妮‧宏奇尔‧史密斯（Stephanie H. Smith）会透过这支影片，揭穿大对于那个时期的常见误解。