Archaeologists also may locate buried remains by using such technologies as ground radar, magnetic-field recording, and metal detectors.
考古学家们还可能利用地面雷达、磁场记录和金属探测器等技术来定位被掩埋的遗骸。
Geomagnetic activity, the natural variations in Earth's magnetic field, it fluctuates in 11-year cycles.
地磁活动是地球磁场的自然变化，其波动周期为11年。
Messenger will explore the surface of Mercury, its crust, its atmosphere and even its magnetic field.
“信使号”将探索水星的表面、地壳、大气，甚至其磁场。
At the Earth's surface, these tempests can be detected by changes in the strength of the Earth's magnetic field.
在地球表面，可以通过改变地球磁场强度来检测这些风暴。
When the magnetic field is at its strongest, and sunspots at their most plentiful, they cluster close to the equator.
当磁场最强，太阳黑子最丰富的时候，它们会聚集在赤道附近。
This metallic core gives Earth its characteristic magnetic field, which has played an extremely important role in the history of our planet.
这种金属核赋予地球特有的磁场，在地球的历史上发挥了极其重要的作用。
In 1832, the year of Michael Faraday's discovery that a changing magnetic field produces an electric field, a young French engineer patented a new and more efficient waterwheel.
1832年，也就是迈克尔·法拉第发现磁场变化会产生电场的那一年，一位年轻的法国工程师为一种新的、效率更高的水车申请了专利。
The Earth's magnetic field is generated as the molten iron of the Earth's outer core revolves around its solid inner core; when surges in the molten iron occur, magnetic tempests are created.
地球磁场是由地球外核的熔铁围绕固体内核旋转而产生的；当铁水激增，就会发生磁暴。
Detecting a magnetic field surrounding an Earth-like exoplanet would prove a promising sign for finding extraterrestrial life.
对类似地球的太阳系外行星的磁场探测将会给探寻外星生物带来一线光明。
And what can happen is that this cartoon shows that if you put a magnetic field on liquid oxygen, that liquid oxygen would be drawn towards the magnetic field.
能够发生的就是，在动画里有所体现，如果你把液氧放在磁场中，液氧会被吸起来，朝着磁场的方向。
This creates a secondary magnetic field around the cans that is repelled by the magnetic field of the rotor, literally ejecting the aluminium cans from the other waste materials.
这样，被转子磁场隔开的铝罐周围就会产生一个二级磁场，实际上也就能将铝罐与其它废料隔离开来。
Another new discovery concerns Mercury's magnetic field. The planet, along with Earth, is alone among the terrestrial planets in having a global magnetic field.
另一个新发现是关于水星磁场的：水星和地球是所有的类地行星中有球星磁场的行星。
The solar wind, which carries the particles from the sun's magnetic field, known as the interplanetary magnetic field, takes about three or four days to reach the Earth.
太阳风将粒子从太阳的磁场，也就是我们通常所说的行星际磁场中带出，经过三至四天的时间到达地球。
Earth's magnetic field is changing in other ways, too -globally, the magnetic field has weakened 10 percent since the 19th century.
地球的磁场在其它方面也在处于变化中——全球的磁场强度在19世纪后减弱了10%。
Earth's magnetic field is changing in other ways, too - globally, the magnetic field has weakened 10 percent since the 19th century.
地球的磁场在其它方面也在处于变化中——全球的磁场强度在19世纪后减弱了10%。
You take a diamagnetic material in the absence of a magnetic field, and you slowly move it into a place where there's high magnetic field, what does the diamagnetic material do?
你有一块抗磁材料没有磁场，慢慢地把它移到，磁场很高的地方抗磁，材料会怎么样？
Creating a magnetic field using electricity is easy: an electric current flowing in a wire generates a magnetic field around that wire.
用电流产生磁场容易：当电流在金属线圈流动时，磁场也随之产生。
The red threadlike filaments are composed of cool gas suspended by a magnetic field.
红色细长的丝状体是由冷却下来的气体组成，气体处于磁场中。
Other instruments will analyze surface chemistry, examine the magnetic field, and investigate radiation environments.
其他的仪器会分析表面的化学物质，检测磁场，以及调查辐射环境。
Planetary scientists have also long blamed Venus's sterility on the lack of an internal magnetic field.
行星科学家长期以来也曾将金星的贫瘠归咎于缺乏一个内部磁场。
Recently, they were packaged with fiber optics for detecting the light signals that register magnetic field strength.
目前，它们被封装进检测光信号的光学器件，以记录磁场的强度。
As on Earth, the particles are channelled to the poles by the planet's magnetic field.
在地球，原子内粒子在地球磁场的作用下呈流状分布在两极。
The interplanetary magnetic field fluctuates greatly in magnitude and direction.
行星际磁场在不同的星等和方向强度差别很大。
Such machines are known as "asynchronous" motors, because the rotor's magnetic field never catches up with the stator's field.
因为其中转子的磁场与定子的磁场不同步，所以这种机器被称为“非同步”发动机。
There was, however, one small hitch: the superconducting wires required create a magnetic field have never been developed.
然而，这其中有一个难以克服的技术难题：用于产生磁泡的超导线目前尚未开发出来。
Auroras typically are visible only near Earth's Poles, where magnetic field lines channel charged particles toward the planet.
极光通常只有在靠近地球的南北极才是可见的，在那里磁力线的通道使向着地球的粒子带电。
For example, the honeycomb is somehow aligned to the earth's magnetic field, though no one quite knows why.
例如，蜂巢总是和地球磁场在一条线上，尽管没人知道为什么。
These electrons have a property called spin which may be sensitive to Earth's magnetic field.
这些电子有着自旋特性，可能对地球磁场具有敏感性。
The most plausible explanation involves electrical currents along the magnetic field lines.
最合理的解释涉及到沿着磁场线的电流。
The most plausible explanation involves electrical currents along the magnetic field lines.
最合理的解释涉及到沿着磁场线的电流。
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