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科学研究   

2024-04-07   Video
What Would Happen If Earth’s Magnetic Poles Flipped

Keywords:

What if south was north and north was south? Just like 780,000 years ago? Just like 780,000 years ago? The world didn't come to an end then. The world didn't come to an end then. But how ...

如果 south 是 north,north 是 south呢? 就像 780,000 年前一样? 就像 780,000 年前一样? 那时世界并没有结束。 那时世界并没有结束。 但现在它会有什么反应 我们如此依赖...


2024-04-06   British English
The Cause of a New Type of Hepatitis in Children is Found, Part 1

Keywords:

Science and Technology. Virology. Strange brew. The cause of a new type of hepatitis in children is found. In April mysterious cases of hepatitis, an inflammation of the liver, began appearing ...

科技 病毒学 奇怪的混合 在儿童中发现了一种新型肝炎的原因 今年4月,世界各地的儿童开始出现新的肝炎病例,这是一种肝脏炎症。它们不是由通常导致这种疾病的肝炎病毒引起的。世界卫生组织报告了35个国家出现的1000多例疑似病例。一些...


2024-04-05   Intermediate
Can AI Predict Your Death, Part Two

Keywords:

Leffer: I asked her how powerful she thought life2vec’s mortality predictions are and she said, quote, “I would not quit my job and go to the Bahamas based on this thing.” Bose: Haha ok, that’s kind...

Leffer:我问她认为 life2vec 的死亡率预测有多强大,她说,引用这句话,“我不会根据这件事辞掉工作去巴哈马。 Bose:哈哈,好吧,这有点烧伤吗? Leffer:这更像是在说明预测死亡之类的事情有多么困难。要评估如此新事物的...


2024-04-03   Intermediate
Can AI Predict Your Death, Part One

Keywords:

Lauren Leffer: Prediction is powerful. For as long as people have been thinking about the future, we’ve been trying to predict it. And, in some areas, we’ve gotten pretty good (think, like, meteorolog...

Lauren Leffer:预测是强大的。只要人们一直在思考未来,我们就一直在努力预测它。而且,在某些领域,我们已经做得相当不错(比如气象学和气候建模)。 Tulika Bose:但从科学上讲,我们离水晶球和神谕还很远。人们没有可靠的...


2024-04-01   Video
What Would Happen If an Asteroid Hit the Earth

Keywords:

Asteroid GE3 detected on a collision course. It's just half the lunar distance away from us. And... it's turning! Looks like it's now heading towards the Sun. What if this football-field-s...

在碰撞过程中检测到小行星 GE3。 它离我们只有月球距离的一半。 和。。。它正在转动! 看起来它现在正朝着太阳飞去。 如果这个足球场大小的 Space Rock 没有转向? 如果它一直向我们移动呢? 这...


2024-03-31   British English
DNA Grants Researchers a Glimpse of Neanderthal Family Life, Part 2

Keywords:

Mitochondrial DNA is passed intact from mother to offspring. It is not involved in sexual mixing, so it changes only by the random process of mutation. The lack of mutations that might have distingu...

线粒体DNA会原封不动地由母亲遗传给后代。它不参与有性生殖中的基因重组,所以只有在随机突变中才会发生变化。文中提到的两个个体的DNA不存在能够将彼此区分开来的突变,这不仅表明他们有共同的祖先,而且说明这个共同祖先存在的时间并不十分久远。 ...


2024-03-30   Intermediate
Ira Flatow and the Teachable Moment, Part 3

Keywords:

Ira Flatow: We make it lower, understandable enough and I would – The kind of Web site I’d like to build would be more socially interactive. I’d like to crowd source questions. Let’s use al...

Ira Flatow:我们让它更低,足够容易理解,我会—— 我想构建的那种网站将更具社交互动性。我想众包问题。让我们利用所有这些人,所有这些学生。让我们让他们帮助我们解决有关科学的问题,让我们帮助他们解决有关生物学或全球变暖的问题或提出想...


2024-03-30   Video
The Most Extreme Explosion in the Universe

Keywords:

Supernovae are the most powerful explosions in the universe, unleashing enough energy to outshine galaxies. We have no real metaphor for their power – if the sun were to magically go supernov...

超新星是 宇宙,释放出足够的能量来超越 星系。我们没有真正的隐喻来描述他们的力量 – 如果太阳神奇地变成超新星,那 会觉得你被能量击中了 核爆炸,每一秒。好几个星期。 虽然超新星是创造的引擎, 锻造使生命成为可能的...


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