It can light a corner in the children's hearts, making them know they are loved by people.
它可以照亮孩子心中的一个角落，让他们知道他们是被人爱的。
After testing different combinations, they chose two materials that worked: a silver-plated yarn that can light up and a kind of thread that conducts electricity.
在测试了不同的组合后，他们选择了两种有用的材料：一种可以发光的镀银纱和一种导电的线。
Photography can light up darkness and expose ignorance.
摄影可以照亮黑暗，暴露无知。
Hindu custom also dictates that only sons can light their parents' funeral pyres.
印度教风俗还规定只有儿子有资格点燃父母的火葬柴堆。
So when it gets dark, I've got plenty of power. And I can light up the Nutmeg like a beacon.
那么当夜幕降临，我就有足够的电力照明，点亮照明灯，在黑暗中仿佛灯塔。
A study by the Institute of Psychiatry in London has found out why - because eating ice cream can light up the brain's pleasure zones.
伦敦精神病研究所的一项研究找到了其中的原因——因为吃冰淇淋能激活大脑的快乐区。
On the bottom of the map, a line says: ‘[This map] illustrates how entrepreneurship and freedom can light up the world with friendship.’
地图下方一行小字为“此图展现出自由、创业进取，联合友谊如何照亮全球。”
And while aurorae are normally visible only at high latitudes, they can light up the sky even at lower latitudes during a geomagnetic storm.
虽然极光通常只出现在高纬度地区，但是在磁暴发生时，极光也能点亮稍低纬度地区的天空。
The only difference is where the heat comes from — to get it, you can light coal on fire, or you can create a controlled nuclear fission reaction.
区别仅在于热气从哪里来，你可以在火上燃煤，或者你可以创造一个可控制的核裂变反应。
Massive objects like the sun can bend light, but colossal clouds of dark matter create "bubbles" in the cosmos.
巨大的星体，例如太阳能够使光弯曲，但是庞大的暗物质云会在宇宙中产生“气泡”。
Bogs are also flooded with sunshine, so even an inefficient carnivorous plant can photosynthesise enough light to survive.
沼泽也充满阳光，所以即使是低效的食肉植物也能获得足够的光，依靠光合作用生存。
When you analyze this light, you can figure out their distance from the Earth, and identify what they are made of, determine their chemical composition.
当你分析这些光的时候，你可以计算出它们与地球的距离，并确定它们由什么构成，查明它们的化学成分。
An animal can hide from predators by choosing the light environment in which its pattern is least visible.
动物可以通过选择一个光线最不明显的环境来躲避捕食者。
Neutrinos can thus escape from regions of space where light and other kinds of electromagnetic radiation are blocked by matter.
因此，中微子可以从光和其他电磁辐射被物质阻挡的空间区域中逃逸出来。
Even a fifteen-minute burst of light in otherwise sustained darkness can reset an animal's circadian rhythm.
即使是15分钟的猝发光（其它地方是持续的黑暗环境）也可以使动物重新设定生理节奏。
This fascinating experiment showed that plants not only detect and react to specific wavelengths of light, plants can also detect and react to changes in the ratio of one wavelength to another.
这个有趣的实验表明，植物不仅能探测和对特定波长的光产生反应，还能探测不同波长比率的变化并对其做出反应。
After all, it's hard to do a double-blind test when the subjects can see for themselves whether or not the light is on.
毕竟，要做双盲测试是很困难的，因为受试者自己可以看到灯是否亮着。
These fast-growing species can grow over the slower-growing species of coral, denying them light and preventing them from recovery.
这些生长迅速的物种可以覆盖生长较慢的珊瑚，使它们得不到光照，无法恢复生长。
I am sure you all know from physics class about how light moves in microscopic ways and that we can only see light when the wavelength of that light is in a specific range.
我相信，你们在物理课上都学过光是如何以微观的方式运动的，以及只有在光的波长在特定的范围内时我们才能看到光这一事实。
Specifically, both mantis shrimps and DVD or CD players are able to convert light into different forms so it can be stored and then retrieved.
具体来说，无论是螳螂虾还是DVD或CD播放机都可以将光转换成不同的形式，从而将光信号存储起来，之后还能再调取出来。
Nowadays scientists are finding light pollution can be almost as bad as carbon dioxide pollution.
如今科学家们发现光污染几乎和二氧化碳污染一样有害。
These rings are indicative of the crystal structure of nickel and can be explained only by invoking wavelike properties of light.
这些光圈表明了了镍的晶体结构，而且只能通过光线中波的特征来解释。
The laser, with its beam of strong light, can drill a hole in a diamond, and yet can be so well controlled that it can be used in delicate eye operations.
凭着本身强烈的光束，激光可在钻石上钻一个洞，而且可以被很好地控制，因此能用于精密的眼部手术。
Even an avalanche of light power can be dangerous, but the Peruvian catastrophe was particularly terrible because it was caused by a heavy layer of ice.
即使是光能的雪崩也可能是危险的，但秘鲁的灾难尤其可怕，因为它是由厚厚的冰层造成的。
Even if ET has mastered building a rocket that can travel at the speed of light, he may be lying dead inside a weakened craft .
即使外星人已经掌握了制造一枚能以光速飞行的火箭的技术，他也可能死在了一架飞船里。
Unlike visible light waves, these radio waves can get through the various gases and dusts in space, and through our own earth's atmosphere comparatively easily.
与可见光波不同的是，这些无线电波可以较容易地穿过太空中的各种气体和灰尘，穿过我们地球的大气层。
Using ultraviolet light, we can see the spectral signature of each component part of the pigment.
通过利用紫外光，我们可以看到颜料各个组成部分的光谱特征。
The beginning of our sleep-deficit crisis can be traced to the invention of the light bulb a century ago.
我们睡眠不足危机的起源可以追溯到一个世纪前灯泡的发明。
All substances, all forms of matter, can be distinguished according to what wavelength of light they absorb and which ones they reflect.
所有形式的物质，都可以根据它们吸收的光的波长以及反射的光的波长来区分。
We can only imagine the fallen angels with a kind of dim and uncertain light just as the belated peasant sees.
我们只能想象出堕落的天使们带着暗淡的变幻的光，就像那个迟来的农民看到的那样。
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