Yuankai

133 Flips | 4 Magazines | 85 Likes | 8 Following | 71 Followers | @geyuank | Keep up with Yuankai on Flipboard, a place to see the stories, photos, and updates that matter to you. Flipboard creates a personalized magazine full of everything, from world news to life’s great moments. Download Flipboard for free and search for “Yuankai”

19 Thrilling Trails Guaranteed to Make Your Heart Race

These 19 hikes will raise your heart rate, take you to perilous heights, or bring you to awe-inspiring destinations.<p>writer

Hiking

Spying Software Spots Phone Theft In 2 Minutes, No Password Needed

No PIN codes or thumbprints required.<p>Stolen phones are a logistical pain and a financial burden. As products like Apple Pay attempt to make our phones our identities, the stakes are only getting higher. But do we want every other moment we live to be verified by thumbprint, passcode, or PIN? Is …

Ten percent of Starbucks transactions in US come via mobile payments

Mobile payments has proven to be a very difficult nut to crack. Google, Isis, and others have failed to bring wallet-free payments to primetime, but one company has seen some success: Starbucks. The coffee chain says that wholly ten percent of its payments in the US are made using smartphones, …

Why the mega merger of advertising giants Omnicom & Publicis impacts tech business

Advertisement<p>16 Comments<p>Credit: Shutterstock / Everett Collection<p>Earlier this year I wrote that we have entered an era where every company is a …

杭州汽车共享服务“车纷享”获盈开投资领投的千万级人民币A轮投资

8 Simple Ways To Get Happier At Work

Eye strain, iPhones, desk lamps, stomach cramps: Maximizing and minimizing these elements of your workday will help you get work done. But don’t just take it from us. Listen to Happiness Project author Gretchen Rubin, who clearly knows from mirth.<p><i>Happiness Project</i> author Gretchen Rubin recently …

细菌暗战肿瘤:小块头的大智慧

瞧瞧脑子,预测性欲

陈升曾经开过一场叫做“明年你还爱我吗”的演唱会,这场演唱会的门票提前一年预售,仅限情侣购买。第二年情侣需要各持自己的半张门票,拼在一起才能进入演唱会现场。或许是抱着“我们说好要在一起一辈子的,一年又算什么呢?”这种想法的情侣不在少数,门票很快就售罄了。一年后,当陈升走上舞台,却发现台下稀稀拉拉空了好多座位……说好的不再让你孤单,却只能将悲伤留给自己。<p>且不管演唱会到底来了多少人,其中隐含的一个问题却值得我们思考:我们有办法预测自己以后的行为吗?这个问题并不是什么无稽之谈,美国达特茅斯学院[G1](Dartmouth College)的心理与脑科学家威廉•凯利[G2](William M. Kel …

Neuroscience

辨别毒蘑菇,民间传说不可信

有媒体报道了一起误食毒蘑菇致一人死亡的悲剧[1]。在慨叹草木无情之余,该报道还以“教你一招”的名义列举了一些辨别毒蘑菇的方法。殊不知,这些民间流传的辨别野生毒蘑菇的方法并没有科学依据,轻信并实践这些方法,反而是造成误食中毒的主要原因之一。<p>卫生部2010年的统计数据就显示,该年度全国食用有毒动植物和毒蘑菇[注1]死亡人数共112人,占全部食物中毒死亡人数(184人)的61%,其中半数以上是误食毒蘑菇致死;而对中毒患者的调查表明,他们中的多数并不是不知道毒蘑菇的存在,而是在采食蘑菇时受到了这些辨别方法的误导。[2]<p>全世界约有14000种大型真菌,形态和成分都具有很高的多样性,辨别它们是否有毒需要专 …

不怕产品灵感瞬间即逝,Pentotype让用户在iPad上随时画出可演示的iPhone应用原型

学生创业这点小事,由做宿舍家居的Dormi说开去

闪光灯配件iblazr亮相Kickstarter,让你的手机不再惧怕低光拍摄

八位彻底改变App Store的iOS开发者

星巴克美国市场交易量的十分之一来自手机支付

半个月过去了,亚马逊Kindle还好吗? Kindle,电子书阅读器,入华 _威锋网

亚马逊Kindle入华的障碍<p>2007年11月,第一代Kindle电子书阅读器上市发售后立即引发轰动,成为美国用户热门竞购产品,同时这款Kindle电子书阅读器也奠定了亚马逊无可替代的电子书之王的地位,并衍生出新款Kindle电子阅读器和Kindle Fire平板等移动设备,成为亚马逊的重要营收来源之 …

NSA spying flap extends to contents of U.S. phone calls

National Security Agency discloses in secret Capitol Hill briefing that thousands of analysts can listen to domestic phone calls. That authorization appears to extend to e-mail and text messages too.<p>The National Security Agency has acknowledged in a new classified briefing that it does not need …

Surveillance

How to Stop Procrastinating by Using The '2-Min...

Recently, I’ve been following a simple rule that is helping me crush procrastination and making it easier for me to stick to good habits at the same …

Procrastination

Blue Apps Are All Around But Blue Tones Get Less Of A Role In iOS 7’s Psychedelic Redesign

Why are so many app icons blue? The obvious answer is that so many tech brands contain blue in their logo or elsewhere in their tradedress. But why? What’s with the love of the blue tones people? I ask because the number of blue icons on my phone has reached a kind of tipping point where I’m often …

Rope

For other uses, see Rope (disambiguation).<p>A <b>rope</b> is a group of yarns, plies, fibers or strands that are twisted or braided together into a larger and …

Fewer Americans to travel for July 4 holiday

Fewer Americans will be traveling over the July 4 holiday, as the shorter holiday weekend keeps more people close to home, according to estimates from motorist group AAA.<p>This year July 4 falls on a Thursday, giving travelers a four-day holiday weekend, rather than the five-day weekend they had last …

“土家庄”的空气救赎 石家庄:围剿烧烤,进京跑“气”,投资百亿

素数并不孤独

数学是科学的女王,数论是数学的女王。<p>——高斯<p>数论,是研究数字的一门数学分支。如同大海,它清澈透明而又深不见底。它的基础概念,自然数、加法、乘法,每个小学生都清楚;但关于自然数的定理,却可以让人穷尽一生而不得其解。而这篇文章要介绍的,只是这个广阔海洋中一个小小的海域。即便如此,我们仍未知道此处海深几何,尽管最近张益唐的突破性工作,使我们比以往更接近真理,但这远远不够。<p>尽管笔者才疏学浅,有恐贻笑方家。但如能为读者勾勒出一点点数学之美,也不枉费一番心思。<p>可以说,素数是数论中最基础而最重要的概念。如果一个大于二的正整数,除了1和它本身之外,不是任何数的倍数,那么它就是一个素数。比如说,6不是一个素数, …

如何知道自己有没有戴绿帽子

三个逻辑学家走进酒吧,侍者问:"每个人都要来杯啤酒吗?"第一个逻辑学家说:"我不知道。"第二个说:"我也不知道。"第三个说:"是的!"<p>这是一个经典的低笑点段子,相信大多数人稍稍思考片刻,就可以恍然大悟:对于侍者的问题,三个人只要有一个人答案为否,整个问题的答案就是否,第一个逻辑学家如果自己心里想要啤酒,但是不知道其他两个人的意向,只能回答不知道,相反,如果他自己心里不想要啤酒,就可以直接回答否,不用再看其他两个人的意向。第二个逻辑学家也是类似的情形,不知道第三个逻辑学家的意向,只能回答不知道。轮到了第三个逻辑学家,他从前两个逻辑学家的回答中已经可以判断出前两个人都要啤酒,而他自己也要啤酒,于是 …

最终极限:太空蹦极跳

David L. Chandler 文 Shea 编译<p>当美国空军上尉乔·基廷格(Joe Kittinger)站在舱口的时候,他距离地面31千米,那时他或许在想,我是不是正在犯下一个致命的错误?在上升到这一高度的过程中,他的加压服手套被撑破了,而这恰恰是他活着重返地面的关键。<p>基廷格,一个两次打破伞跳纪录的老兵,他没有告诉任何人。他知道,如果地面人员发现了,他们会取消这一行动,这是他不希望看到的。凭借着试飞员的勇敢,他决心咬紧牙关放手一博。<p>[图片说明]:基廷格在1960年进行的创纪录的一跳。<p>暴露在接近真空的平流层,他所处的位置大约是民航客机巡航高度的3倍,由于他的手肿胀到了正常大小的两倍,因此他必 …

世界上最漂亮的钞票

视频功能话题未完:单键拍照摄像专利或让Snapchat成为最正牌的相机应用

丢三落四者的福音:蓝牙电子瓷片Tile

Facebook的黑客之道——这三个人重建了Facebook的基础