听力文本

This is Scientific American — 60-Second Science. I'm Christopher Intagliata.
Smartphones can already verify your identity by scanning your fingerprint or your face. But there's something inside you that's also unique proof that you're you.
Researchers have developed a device that uses low-powered Doppler radar to decode the unique geometry of a user's heart...and how it squeezes and swells as it beats. That biometric information can authenticate the identity of the person under scrutiny.
And if the wrong person sits down: "So it would recognize there is a heart, but the geometry of my heart is different from yours so it would still log me out." Wenyao Xu is a computer scientist at the University at Buffalo who helped develop the tech.

He says this unusual biometric is robust, because it's actually two different biometrics. The first is the shape of your heart—a 'biologic' biometric or static trait, like fingerprints or iris patterns. The second is the beating of your heart: what's called a 'behavioral' biometric—which analyzes a dynamic process, and can be harder to spoof.
So far they've tested the system on about 100 people—with an accuracy of over 98 percent. They'll present the results this month at the MobiCom conference in Utah.
Xu says the radiation from the device isn't harmful—just a fraction of what we get from our smartphones. But at a couple inches in size, the unit's not quite ready to fit inside a smartphone. "Uh, not yet. So we're waiting for the call from Apple." Because ya gotta have heart. But you also gotta have funding.
Thanks for listening for Scientific American — 60-Second Science Science. I'm Christopher Intagliata.

参考译文

这里是科学美国人——60秒科学DW;^u&t3Yskigow2NpV。我是克里斯托弗·因塔利亚塔itQABFMTP##7B1%|Fn。
现在智能手机已经可以通过扫描指纹或刷脸来验证身份^DGGzHu4-F。而你体内同样也有可以证实“你就是你”的独特证明v.iTuk~4A3[8*XBzT^ak。
研究人员研发了一种设备，可以利用低功率的多普勒雷达来解析用户心脏的独特几何形状，以及心脏跳动时的收缩和舒张方式(7r3k31=Cx#nz。这种生物特征信息可以验证被审查人的身份5OB0*sWY~mV=^lEi2ye。
如果坐在设备前的是错误的人，“设备可以识别出心脏，但是我心脏的几何形状和你的不同，所以我还是无法登陆(-Fxm37lzi=|S90H。”纽约州立大学布法罗分校的计算机科学家许文耀说到，他参与了这项技术的研发.&0o*.oqDNg。
他表示，这种不同寻常的生物识别技术很可靠，因为实际上它包含了两种不同的生物识别方式I]6wEN@7]i[Lc[DCh。第一种是心脏的形状，这属于“生物学”上的生物识别或静态信息，比如指纹或虹膜模式-ll6q,.K%qro*。第二种是心脏跳动的节奏：这是“行为学”上的生物识别特征，可以分析动态过程，而且更难作假raqJezV8@y1oef,f;od7。
截至目前，他们已经用这一系统测试了约100人，准确度超过98%I9(@BQG3luTe。他们将在犹他州举行的 MobiCom会议上公开研究成果dhKA7ZMgm]。
许文耀表示，这一设备产生的辐射不会对人体造成伤害，其辐射量只是智能手机辐射的一小部分ouu80;J=1N@|V+(]。但是，由于这个设备的尺寸有2英寸，所以目前还不能安装到智能手机中v98ZnHBMln]ai.Ye|。“现在还不能放到智能手机中，我们在等苹果公司给我们打电话_2.2)Rsu[wOOB。”因为你不仅要有勇气，还要有资金_CZJn|Yv,W_#r。
谢谢大家收听科学美国人——60秒科学ntC3yi@3Bnn3PRR。我是克里斯托弗·因塔利亚塔uFvZDTUiD(y%F。

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重点讲解

重点讲解：
1. sit down 就座；坐下；
例句：Hughes beckoned him to sit down on the sofa.
休斯示意他在沙发上坐下=G=)4Cq1^Due@+[O&~z。
2. be different from 有差别的；不同的；
例句：The worker of today is different from the worker of yesterday.
如今的工人和以往的不同了PVov[q-K0eg|qLMngk]S。
3. be ready to do sth. 准备好的；胜任的；
例句：When the clay feels like putty, it is ready to use.
黏土摸起来像油灰时，就可以用了EweN32B[4P4)*^.。
4. wait for 等待；等候；
例句：Just wait for me in the lounge.
请在休息室里等我就行了JCO4cg@QunW]。