星星

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Walking With Giants: Journey Through Polar Bear Country

“Back up! Back up! Back up!” whispers our guide Tara, who for the first time this whole week places one hand on the 12-gauge shotgun slung over her left shoulder. Our group scampers back – tripods and all – without delay. Bob, the gentle giant who we’ve come to know and love ambles by and without …

Wildlife

Three California Gold-Rush Towns Worth Visiting

Floyd Øydegaard won’t let me leave his bookstore.<p>He’s talking to two fellow bearded reenactors and me about Lincoln’s outhouse.<p>“You see, he used a barrel so his coattails could hang off the back edge,” Øydegaard says, his lips smacking with excitement. “He was such a smart man.”<p>The 19th century has …

Alexander Hamilton

酷炫动图(六):物理篇

Will Indonesia Be Ready for the Next Tsunami?

Ten years after catastrophic waves lashed Sumatra, Indonesia has rebuilt. But the risk of another devastating tsunami is high.<p>Ten years ago, one of the deadliest natural disasters in history killed 227,898 people in 14 countries around the Indian Ocean—nearly 170,000 of them in Indonesia.<p>It began …

为什么一战会出现“圣诞停火”?

Seeking Sanctuary Status for the Aleutian Islands Archipelago

Changing Planet<p>By Mark J. Spalding with Catharine Cooper<p>4,405 miles from Washington D.C. lies a rugged chain of exquisitely beautiful islands. Extending from the tip of the Alaskan peninsula, the Aleutian Islands are home to one of the richest and most biologically productive marine life …

Explaining Mysterious 'Pancake Ice' on River in Scotland

The right conditions make for strange lily-pad formations.<p>Strange-looking formations that resemble frozen lily pads have appeared this week on Scotland's River Dee, drawing Internet attention from around the world. Called "ice pancakes" or "pancake ice," the natural formations occur when conditions …

这应该是2014年最受好评的20部电影

研究称地球内部藏巨大海洋 或揭开水的起源之谜

一氧化碳中毒的注射解毒剂诞生

<i>图片说明:医学博士Joseph Roderique中尉在弗吉尼亚联邦大学(VCU)实验室进行一氧化碳中毒的注射解毒剂研究。图片来源:medicalxpress.com</i><p>当Joseph Roderique还是弗吉尼亚联邦大学医学院(Virginia Commonwealth University Sch …

π里包含了所有可能的数字组合吗?

本文作者:Ent<p>在《疑犯追踪》S02E11里,“宅总”哈罗德·芬奇说了这样一段话:<p>“π,圆周长与其直径之比,这是开始。后面一直有,无穷无尽。永不重复。就是说在这串数字中,包含每种可能的组合。你的生日,储物柜密码,你的社保号码,都在其中某处。如果把这些数字转换为字母,就能得到所有的单词,无数种组合。你婴儿时发出的第一个音节,你心上人的名字,你一辈子从始至终的故事,我们做过或说过的每件事,宇宙中所有无限的可能,都在这个简单的圆中。用这些信息做什么,它有什么用,取决于你们。”<p>很多观众看到这一段之后十分感动,还有人感慨:为什么我们的数学老师没有这么教我们呢?<p>之所以我们的老师不讲,是因为这段话在数学上是 …

阴毛细菌,也许是罪犯的“微生物指纹”

16座世界上最梦幻的“桥照”

巨型光绘风景里的科学

揭开有关人工智能的五个误区

未来房屋「光子空间」让你像上帝一样自由控制光线 | 极客公园

为什么我们会觉得照片中的自己很丑?