光辐射就只是扩散的可见光能量。
Optical radiation is just visible light energy spreading out.
蒂姆·约瑟夫对阳光能给人类带来能源和财富的观点非常着迷。
Tim Joseph was fascinated by the notion that sunlight brings energy and wealth to mankind.
当瞳孔横向伸展的时候，更多的光能够从前面、后面和侧面进入。
When stretched horizontally, the pupils allow for more light to enter from the front, back, and sides.
它是利用微波把电能转换成光能。
Their device uses microwaves to transform electricity into light.
辛巴：阳光能照到的所有的东西！
研究人员们早就了解光能推动物体的现象。
Researchers have known for a long time that blasting an object with light can push the object away.
光能。不需要新电池。
用光能而不是用电能的计算机。
辐射能也称作光能。
看来，在未来的年代里，光能是科学研究的重要课题。
It seems that light energy will be an important subject of scientific research in the future.
高光能平衡阴影，应该位于物体靠近光源的边缘。
Highlights can help balance shadows and should be used on the edges of objects closest to the light source.
当然，我们人类最重要的光能的来源就是太阳。
Our most important source of radiant energy is, of course, the sun.
太阳是我们所需要的光能和热能的唯一源泉。
当前，风能和光能合起来只提供了全美不到1%的能源。
At present, wind and solar combined provide less than 1 percent of America's energy.
人类一向依靠阳光能源，不过几千来主要为间接利用。
Humans have always depended on energy from the sun, though it was exploited mostly indirectly for thousands of years.
想象一块儿布满光电转换太阳能电池板，吸收着光能的巨大场地。
Imagine giant fields filled with photovoltaic solar panels, soaking up rays.
电流流过夹层，电子和空穴在两种材料接口处共同发挥作用，释放光能。
When a current is applied across the sandwich, the electrons and holes team up at the junction of the two materials and release energy in the form of light.
这些都可以形成较为淡色的粒子，从而反射而不是吸收太阳的光能。
These can form less-black particles that reflect, rather than absorb, the sun's energy.
植物天生吸收二氧化碳来进行光合作用，这是一种将光能转化成化学能的过程。
Plants naturally take in carbon dioxide they need for photosynthesis, the process of changing light energy to chemical energy.
除此之外，激光能够持续更长时间段，而氙气灯较快燃尽，需定期更换。
On top of that, lasers last for a long time, whereas xenon lamps burn out and need to be replaced periodically.
就算这笔钱全部流向光能，美国当前的光能供应也只能增加不到1%。
If all this money went to solar, it would add less than 1 percent to current U.S. solar energy.
同样，侧光、顶光和底光能够在物体上投射出深而长的影子，从而制造出立体感。
Again, lighting from the side, above, or below, by casting deeper and longer shadows, creates the sense of volume.
最明显的方式是：植物将光能转化成化学能，或者有些动物吃植物来维持自身能量。
There are the obvious: like turning light into chemical energy like plants do. Or eating plants like many animals do.
最明显的方式是：植物将光能转化成化学能，或者有些动物吃植物来维持自身能量。
There are the obvious: like turning light into chemical energy like plants do. Or eating plants like many animals do.
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