英语翻译英文不太好所以没看懂,第1篇.Earth's Inner Core Speedier Than Outer ShellEarth's inner core is a solid iron ball slightly smaller than the moon.Little is known about it,but geophysicists confirmed this year that it spins--faster

英语翻译英文不太好所以没看懂,第1篇.Earth's Inner Core Speedier Than Outer ShellEarth's inner core is a solid iron ball slightly smaller than the moon.Little is known about it,but geophysicists confirmed this year that it spins--faster
英语翻译
英文不太好所以没看懂,
第1篇.Earth's Inner Core Speedier Than Outer Shell
Earth's inner core is a solid iron ball slightly smaller than the moon.Little is known about it,but geophysicists confirmed this year that it spins--faster than the solid layers of earth surrounding it.
Geophysicist Xiaodong Song of the University of Illinois at Urbana-Champaign and his colleagues studied seismic waves from doublets--pairs of earthquakes from the same place but occurring at different times.If the inner core was spinning faster,scientists reasoned,seismic waves from doublets would move through the core at different speeds as a result of the inconsistent makeup of the core's iron crystals.
Song calculates that the solid inner core spins just slightly faster per year than the rest of the planet,a difference that adds up to an extra revolution every 1000 years or so.His discovery could help explain how the inner core interacts with convection in the outer core to drive Earth's magnetic field.The field shields us from bombardment by charged particles from the sun.
"We have only a 30-to 40-year snapshot," cautions Song.The data his team uses first became available in the 1960s,when a worldwide seismographic network was established.What happened before that is unknown.Song expects more breakthroughs in the coming years--as long as Earth keeps quaking.
第2篇.Humanoid Robots Walk Tall
In 2005 a new generation of robots revolutionized the way humanoids walk,one of the greatest challenges in engineering.They followed Honda's ASIMO,which wowed a cheering audience last winter by breaking into a two-mile-per-hour trot.ASIMO is based on technology that is much like that of ashuffling windup toy.Every maneuver is part of a programmed pattern,each posture a frozen moment in time,and an enormous amout of energy is needed to keep the body plugging along in a stiff-looking gait.By contrast,a nameless robot unveiled by engineers at cornell University in February is modeled after antique toy figurines that make their way down a slope,depending only on gravity.The Cornell robot is the first to use principles of passivedynamic walking to stroll on level ground,employing electrical energy equivalent to the metablic energy a human would use.Most of the joints swing freely,naturally shifting mass like a pendulum.Another robot,named Rabbit,designed at the University of Michigan and the University of Nantes in France,may be the first to run in strides that look human.Its creators have made it dynamic,balancing on two points--it has no feet--and with the ability to adjust to obstacles and changes in terrain.Unlike ASIMO,which cannot balance in a fluid way,Rabbit can be shoved violently and regain its stability.
拜托2楼的不要用什么垃圾翻译软件来帮我翻译,我又不是找不到,那些东西翻译出来语句也不连贯

英语翻译英文不太好所以没看懂,第1篇.Earth's Inner Core Speedier Than Outer ShellEarth's inner core is a solid iron ball slightly smaller than the moon.Little is known about it,but geophysicists confirmed this year that it spins--faster
一、地球的内核转动速度比外科快
地球的内核是一个比月亮体积稍小一些的铁球.人类对它所知甚少,但今年地球物理学家们确认它在旋转——而且旋转速度要比包围它的外壳快.
诺伊大学香槟分校的地球物理学家宋晓东和他的同事们研究了多组在同一地点不同时间发生的两次地震的地震波.科学家们分析,如果内核转动速度较快的话,那么这两次地震的地震波应该以不同的速度穿过内核,因为内核的铁晶体组成并不匀称.
宋的计算结果表明,内核的旋转速度每年要比外壳快一点点,要每1000年才会比外壳多转一圈.他的发现可以帮助解释内核是怎样影响外核的对流,并进一步影响地球磁场的.地球磁场能够保护我们不受来自太阳的带电粒子的轰炸.
“我们只有一个30到40年的快照,”宋警告说.“他的研究团队使用的数据是19世纪60年代产生的,当时全球地震波研究网络刚刚建立.在那之前发生过什么无法得知.宋期待着未来会有更大的进展——只要地球还在不断地地震.
二、拟人机器人大步向前
2005年新诞生了一批机器人,改革了拟人机器人行走的方式,这也是工程学里的最大挑战之一.本田的ASIMO是这批机器人中最早的一个,它引起了人们的交口称赞,因为它能以2英里每小时的速度小跑.ASIMO的工作原理和那种震动的上发条的玩具比较类似,每一个指令都是程序的一部分并在一个时间点摆出一个对应的姿势.为了保持机器人以固定的步态行走需要消耗大量的能量.相比之下,二月份康奈尔大学的工程师们推出了一个无名机器人,它的工作原理和过去的一种玩具雕像相似,这种玩具可以仅依靠重力走下山坡.康奈尔机器人是首个使用被动动力学原理在平地上行走的,而且使用的是和人类新陈代谢等同的电能.大部分关节可以自由转动,像钟摆一样抬起重物.另外一个名叫兔子的机器人,由密歇根大学和法国南特大学合作设计,可能是第一个能用看起来和人类一样的大步奔跑的机器人.它的创造者把它设计得很活跃,并用靠两个点保持平衡（没有脚）,它还能根据障碍物和地形做出调整.和无法保持动态平衡的ASIMO不同,兔子可以在被用力推开后仍恢复平衡.