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听力等级

科学研究   

2022-05-27   Pre-Intermediate
Black Hole Hunter

Keywords:

Scientists believe black holes lie at the center of every huge galaxy,including our own Milky Way galaxy.The gravitational power of black holes is so strong that not even light can escape from them.As...

科学家们认为,黑洞位于每个巨大星系的中心,包括我们自己的银河系。黑洞的引力如此强大,以至于连光都无法从中逃脱。当气体、尘埃和恒星被拉入黑洞时,物质移动得更快并升温。此操作会产生非常强大的 X 射线发射。科学家们计划使用 NuSTAR 来搜索...


2022-05-26   Intermediate
Fact and Fiction

Keywords:

Steve: James Randi, great to talk to you this morning. How are you? Randi: My pleasure. I'm glad to be here. I think that we have to meet in person one of these days. This business of over the teleph...

Steve:James Randi,很高兴今天早上与您交谈。你好吗? Randi:我的荣幸。我很高兴来到这里。我认为我们必须在这些日子里亲自见面。这种电话业务听起来有点颠覆性,你不觉得吗? Steve:我们实际上已经见过面了,我稍后会谈...


2022-05-24   Intermediate
Little Brains, Big Brains

Keywords:

Steve: Kate, you're at this big meeting in, where in Columbus, Ohio? Wong: Yeah, I was at the annual meeting of the American Association of Physical Anthropologists in Columbus last month. Steve: An...

Steve:Kate,你正在俄亥俄州哥伦布市的哪个地方参加这个大型会议? Wong:是的,我上个月在哥伦布参加了美国体质人类学家协会(American Association of Physical Anthroplogists)的年会。...


2022-05-24   Video
Regulatory Switches in Stickleback Fish

Keywords:

Both the marine and the pelvic reduced population have a Pitx1 locus. The coding region of the gene is still intact in both populations. This gene we think is surrounded by a series ...

海军陆战队和 盆腔减少 具有 Pitx1 位点。 编码区域 的基因仍然是 在两个种群中都完整。 我们认为这个基因是 被 A Series 包围 这些监管 switch (开关) 让它转动 在特定...


2022-05-23   British English
The Moon’s Janus Faces

Keywords:

Science and Technology. Lunar history. How do you solve a problem like maria? An ancient collision may explain the moon’s Janus faces EARTH’S moon has a split personality. One half of its surface...

科学和技术 月球的历史 如何解决月海这样的问题? 一次古老的碰撞可能解释月球的杰纳斯面孔 地球的卫星--月球有着分裂的人格。其表面的一半--由于轨道力学的变幻莫测,这一半总是面对地球--一直处于黑暗之中。这片黑暗的地方被称...


2022-05-20   Intermediate
Plasma Physics - From Black Holes to Radio Reception

Keywords:

Minkel: I wonder, could you start by telling our listeners what plasma is? Blandford: Oh! Plasma is an ionized gas—it's one where the electrons are separated from the nuclei, usually formed at high t...

Minkel:我想知道,您能先告诉我们的听众什么是等离子体吗? 布兰福德:哦!等离子体是一种电离气体——它是电子与原子核分离的地方,通常在高温下形成;而宇宙中的大部分重子物质都是以等离子体的形式存在的。 Minkel:那么,对于那些不知...


2022-05-20   Video
Regulatory Switches in Drosophila

Keywords:

[CARROLL:] Let's compare two flies, one without spots, which is the humdrum Drosophila melanogaster, one with spots on the male, Drosophila biarmipes. There's a gene, we're just going to ...

[卡罗尔:]让我们比较两只苍蝇, 一个没有斑点, 这就是单调乏味的 黑腹果蝇,1 雄性上有斑点, 果蝇 biarmipes。 有一个基因,我们只是要去 称之为 Paintbrush 基因 这就是编码序列 此...


2022-05-18   Video
Fracking Explained - Opportunity or Danger

Keywords:

What is hydraulic fracturing – or fracking? Since the industrial revolution our energy consumption has risen unceasingly. The majority of this energy consumption is supplied by fossil fuels like...

什么是水力压裂或水力压裂? 自工业革命以来,我们的能源消耗不断上升。 大部分能源消耗由煤炭或天然气等化石燃料提供。 最近有很多关于一种有争议的天然气提取方法的讨论: 水力压裂或水力压裂。 简而言之,水力压裂法描...


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