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科学在身边:宇宙专题|粤语

知道粤语频道

《科学在身边》是一个以粤语为主的科普频道,旨在提供易学易懂但又殊不简单的科普内容,专为工作忙碌却又对科学有浓厚兴趣的你而设。

宇宙专题(逢星期一播出)

上下四方谓之宇,古往今来谓之宙。宇宙不但包罗万有,更隐藏著物理学的终极秘密。在宇宙专题里,主持人张老师会带你从地球出发,冲出太阳系,穿过茫茫星海,一直到达宇宙尽头,为你诉说宇宙中各种兴衰起落的故事。之后我们又会回到地球,观看地球过去46亿年的演化历程。在专辑的尾声,我们会进入微观世界,探索量子力学的神奇国度。这将是一趟从小到大,从近到远,最后又回归到微观世界的神奇旅程。想知道宇宙有哪些新奇好玩的话题?那就要留意每周的宇宙专题啦!

《科学在身边.宇宙专题》已经完满结束,在此衷心感谢一直支持本专辑的朋友。接下来,我们将会推出一个全新的《科学在身边.未来科学家》专辑。在这个新专辑里面,张老师会换一个角度,跟你说说科学家是怎样炼成的,科学家究竟是怎... more

PublishesWeeklyEpisodes67Founded6 years ago
Language
ZH-CN
Categories
Natural SciencesKids & FamilyScience

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Artwork for 科学在身边:宇宙专题|粤语

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万有理论是科学家梦寐以求的一种终极理论,而且人类对此的追求,已经延续了几千年。原始民族大多流传着各种神话和传说,试图解释世界运行的规律。宗教以外,当然还有科学或哲学。例如,古希腊的哲学家就尝试运用几条基本公理,推导出世界上各种现象背后的原理。十七世纪的牛顿力学,也是运用数学和实验推导出来的一套既简单而又能够解释物体运动原理的理论。

但是进入二十世纪,科学家又发现牛顿力学原来也不是万有理论,代之而起的是相对论和量子力学,而且两者并不相容。于是,人类又再次回到追寻万有理论的循环里面,希望有朝一日可... more

标准模型是粒子物理学的核心理论。但是标准模型的最大缺陷,就是没有考虑到万有引力。宇宙里面有四种基本力,分别是强力、弱力、电磁力、万有引力。其中前面三种力都出现在微观尺度,可以用量子力学中的标准模型来解释,而万有引力则可以用爱因斯坦的相对论来解释。

一般来说,量子力学和相对论通常都可以二择其一。可是,宇宙中真的有些情况,是量子力学和相对论都无能为力的,例如是在黑洞的中心,或者在宇宙大爆炸不久,因为这些都是微观尺度,量子效应很明显,同时万有引力又大到不能忽略不计。

科学家的终极目标,是寻找一个在... more

巨型强子对撞机 (LHC) 是人类历史上能量最大的粒子加速器,建造成本达到48亿美元,每年的营运开支也达到10亿美元。这台机器2008年9月10日开始运作,在过去的11年间进行了很多大大小小的实验。其中最重要的成果之一,就是发现希格斯玻色子 (Higgs boson),也就是大名鼎鼎的「上帝粒子」。

「标准模型」是粒子物理学目前最成功的理论,它的雏形早在1950年代就已经出现。如今,标准模型已经成为了粒子物理学之中的牛顿定律,拥有非常重要的地位。但是标准模型有一处空白,必须以一种前所未知的粒子来... more

为了研究基本粒子,科学家除了埋头苦干,进行各种行外人难以明白的理论计算之外,还需要一些适当的实验仪器来进行实验,验证他们的理论。讲到高能粒子物理学的实验仪器,当然不得不提的是粒子加速器。其中最有名的粒子加速器,应该就是位于瑞士和法国边境地底的巨型强子对撞机 (LHC) 了,它是人类目前所建造的能量最大的粒子加速器。

巨型强子对撞机真的很巨型。它的圆周有27公里,差不多就是北京市二环路包着的范围。「强子」泛指好像质子一类的粒子,巨型强子对撞机就是设计用来加速强子的。「对撞」两个字的意思亦都很清楚... more

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4.6 out of 5 stars from 38 ratings
  • 科学教育

    宝藏级的科普节目,两个系列我都听完了,可惜没有再更新,感谢

    Apple Podcasts
    5
    大雕健哥
    China2 years ago
  • 麦克风?

    不能普通话

    Apple Podcasts
    1
    のひ惑星🪐
    China3 years ago
  • 正到爆!

    正到爆!希望张博士及其朋友能一直坚持更新!谢谢!

    Apple Podcasts
    5
    Super Neo Siu
    China5 years ago
  • 超正

    我两夫妇和女儿每天开车上落班都听!张博士加油!

    Apple Podcasts
    5
    Neo Siu
    United States5 years ago
  • 高质量的广东话节目

    像这样科普性强的广东话的节目实在是凤毛麟角!!

    Apple Podcasts
    5
    Jo-Yiu
    China6 years ago

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