科学界近期值得关注的十大故事

2015-09-21 佚名 生物谷

  -科学界每天都有新的发现,每天都精彩的故事。让小编带你一起回顾上周最精彩的科学故事吧! 古人类学的新发现 考古学家近期在南非发现了一个新的古人类,并定名为Homo naledi。 科学家们发现,这种生活在约距今280万年前的古人类,应该是最原始的人类先祖了,他们的脑容量很小,大约只有橙子那么大。然而,考古学的发现认为,这些原始人类有着某些宗教仪式(埋葬同类),这表明这个

 

-科学界每天都有新的发现,每天都精彩的故事。让小编带你一起回顾上周最精彩的科学故事吧!

考古学家近期在南非发现了一个新的古人类,并定名为Homo naledi。 科学家们发现,这种生活在约距今280万年前的古人类,应该是最原始的人类先祖了,他们的脑容量很小,大约只有橙子那么大。然而,考古学的发现认为,这些原始人类有着某些宗教仪式(埋葬同类),这表明这个种群可能已经有了复杂的社会形态。

被献祭的红隼

使用现代成像学,科学家们发现,在一个红隼的喉管和胃中,有残存未消化的食物。科学家们认为,这个在最后一顿被噎死的可怜鸟儿,应该是被古埃及人献给太阳神拉的祭品。
 


在距之前发现的巨石阵地址约2英里的地方,考古学家们发现了一个更大的巨石阵遗存。新发现的巨石阵规模较之前发现的大了15倍。这让本来扑朔迷离的巨石阵之谜更加难解。An artist's depiction of the stones.

 

波音的小型化激光武器

波音公司开发出了体积更小的激光武器,能够在短短几秒内击落无人机。这种小体积的武器甚至可以装进公文包,可以被用于挂载在美国军方的各种武器系统上面。在美国加利福利亚州上空的测试中,这种激光武器成功击落了一架测试用无人机。

低质量睡眠对心脏有害

近期的一项研究认为,不论是睡眠过少还是过多,都可能会对心脏造成不利影响。南韩的这项研究认为,睡眠9小时和5小时,相对于睡眠在7小时的对照组,在动脉血管壁中的钙质积累更高,因此对心脏会带来健康风险。

“为了科学,来,咽下这一口!”

在一项研究肥胖的早期起因的实验中,一组成年男性同意为了科学研究,他们要拼了。他们每天要吃进去6000卡路里的热量。这项实验中,科学家认为他们了解了肥胖早期形成的一些原因。这个实验中科学家记录了志愿者增肥过程中的一些指标,并且试图解释肥胖和胰岛素耐性的关联。
 

“不听话的”粒子

利用在瑞士的大型强子对撞机,科学家们终于证明了,之前一直存在争议的亚原子粒子轻子,其行为与物理模型不符。这种轻子的行为被认为与基本的标志物理模型不符,可能意味着标准物理模型的理论需要修改。科学家仍然需要重复试验来确认这个结果。

1813,幸存的船员

1813年,一艘名为Neva的舰船在美国阿拉斯加Kruzof岛附近失事。船员在一个多月的艰难求生后,终于等到了救援。考古学家现在弄清楚了为什么这些船员能够在寒冬中存活这么久。考古学家通过这些幸存者生活过的地方的研究,找到了当年的一些遗存。研究者认为,这些船员靠着枪支和钢铁碎屑引火,然后靠着拆解船体做成工具,最终存活到救援到来。

冥王星数据回传

美国NASA的新地平线飞行器在其掠过冥王星时,开始往地球传输数据了。这批数据的大小在数个Gb,数据的回传可能需要一年多时间。这批数据包括一些图像信息、光谱学数据和一些大气的数据,被科学家认为非常有意义,将会揭开冥王星神秘面纱的一角。
 

人体生物反应器

美国国防高等研究计划署近期的一项研究中,他们使用人体来生产疫苗。利用人体自身作为化工厂,可以使用一些方法来指导人体合成一些抗体,其效率会非常高。这种用人体来合成的抗体可以被用来抵御疾病,能够提供快速高效的保护。而且改造人体基因组来合成疫苗,这种基因组的改造是短时性的,会随着时间增加而逐渐消失。在美国,已经用了一些公司和研究机构开始这方面的研究。

信源:

Weekend Reading: The Best Science Stories of the Week

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    2015-09-23 Jianghuiqin

    腻害!肥胖志愿者!

    0

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    2015-09-21 he408015781

    不错的视角,长见识了

    0

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    2015-09-21 he408015781

    不错的视角,长见识了

    0

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    2015-09-21 he408015781

    不错的视角,长见识了

    0

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    2015-09-21 yydlt

    精彩啊!

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=37185, encodeId=14bd3e185c4, content=腻害!肥胖志愿者!, beContent=null, objectType=article, channel=null, level=null, likeNumber=101, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20170803/IMG5982F7A3DBB3C1061.jpg, createdBy=0ba51605600, createdName=Jianghuiqin, createdTime=Wed Sep 23 21:52:00 CST 2015, time=2015-09-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=37104, encodeId=73523e1046b, content=不错的视角,长见识了, beContent=null, objectType=article, channel=null, level=null, likeNumber=99, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e73d1605484, createdName=he408015781, createdTime=Mon Sep 21 21:15:00 CST 2015, time=2015-09-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=37105, encodeId=a2703e10521, content=不错的视角,长见识了, beContent=null, objectType=article, channel=null, level=null, likeNumber=106, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e73d1605484, createdName=he408015781, createdTime=Mon Sep 21 21:15:00 CST 2015, time=2015-09-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=37103, encodeId=ea8e3e10321, content=不错的视角,长见识了, beContent=null, objectType=article, channel=null, level=null, likeNumber=156, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e73d1605484, createdName=he408015781, createdTime=Mon Sep 21 21:14:00 CST 2015, time=2015-09-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=37090, encodeId=df433e09082, content=精彩啊!, beContent=null, objectType=article, channel=null, level=null, likeNumber=153, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLCEEr4dM45RatXXGAkFCicnNYiasFiaRicicO1YWsIeTFOhgapauqib8Z8TChNB3ttVC5RqNHptDvAxA72Q/0, createdBy=a82a1611288, createdName=yydlt, createdTime=Mon Sep 21 12:22:00 CST 2015, time=2015-09-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=37091, encodeId=91583e09134, content=为啥没积分!, beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLCEEr4dM45RatXXGAkFCicnNYiasFiaRicicO1YWsIeTFOhgapauqib8Z8TChNB3ttVC5RqNHptDvAxA72Q/0, createdBy=a82a1611288, createdName=yydlt, createdTime=Mon Sep 21 12:22:00 CST 2015, time=2015-09-21, status=1, ipAttribution=)]
    2015-09-21 yydlt

    为啥没积分!

    0

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