光辐射就只是扩散的可见光能量。
Optical radiation is just visible light energy spreading out.
氯化钠晶体对可见光是透明。
我们用肉眼看到的彩虹色的光属于可见光。
The light that we see with our human eyes as a band of rainbow color falls in the range of what's called visible light.
射电望远镜拍摄的天空图片不是可见光，而是无线电波。
Radio telescopes create pictures of the sky, not in visible light, but in radio waves.
不管你用什么产品，都应该只发出可见光，因为紫外线会伤害眼睛。
Whatever product you use should emit only visible light, because ultraviolet light damages the eyes.
在光学天文学中，在用望远镜观察恒星时，我们依靠的是可见光波。
In optical astronomy, using a telescope and observing the stars that way, we rely on visible light waves.
无线电波的波长比可见光长得多，而且来自深空的无线电波总是很弱。
Radio wavelengths are much longer than those of visible light, and the radio waves from deep space are always weak.
除此以外，当可见光波从这些分子上反射出去时，它会向四面八方扩散。
And on top of that, when that visible radiation bounces off those molecules, it scatters in all directions.
大多数天线被制成碟形，用以收集和反射无线电波至亚反射器，就像曲面镜将可见光聚焦于一点一样。
Most antennas are made in the shape of a dish to collect and reflect the radio waves to the sub reflector, in the same way as a curved mirror focuses visible light to one point.
可见光由不同的颜色或波长组成，它们共同组成了所谓的光谱（一段颜色），就像你在彩虹中看到的那样。
Visible light consists of different colors or wavelengths, which together make up what's called spectrum, a band of colors, like you see in a rainbow.
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。
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.
金星看起来甚至也没有那么有趣：对后院的天文爱好者来说，它是一个无聊的主球，它的云层反射了75%的可见光。
Venus isn't even that interesting to look at: a boring cue ball for backyard astronomers, its clouds reflects 75% of visible light.
从可见光扩展到无线电波，再到X 射线和伽马射线，天文学总是会发现不寻常的物体，如射电星系、类星体和脉冲星。
The extension of astronomy from visible light to radio waves to x-rays and gamma rays never failed to lead to the discovery of unusual objects such as radio galaxies, quasars, and pulsars.
她也利用可见光找到不自然的颜色。这种颜色令塑料变得突出。
She also uses visible light to find unnatural colors that might make the plastics stand out.
在天文学中，在光学天文学中，我们不能测量周期或者可见光的频率。
In astronomy, in optical astronomy, we cannot measure the period or the frequency of optical light.
当你想知道某物对可见光是否透明时，这里是神秘物质，这里是可见光。
When you want to know if something is transparent to visible light or not, here is the mystery material and here is visible light.
由于大多数相机闪光灯在发出可见光同时就会发射出红外线，这一替换使得原型机能够发送并记录红外线。
Since most camera flashes emit IR along with their burst of visible light, the one substitution allowed the prototype to transmit and record infrared light.
可见光子或粒子的能量因颜色不同而不同。
The energy of a light photon or particle is different for each color.
下图是红外线和可见光叠加照片。
The bottom image uses a combination of infrared and visible light.
因为可见光的波长大于200纳米。
This is because the wavelength of visible light is longer than 200 nanometres.
在可见光波段，很多尘埃是不可见的。
为什么对可见光透明呢？
可见光的能量是多少？
该星云因在可见光下观测其形似哑铃而由此得名。
The nebula was named after its resemblance to a dumbbell when seen in visible light.
紫外线通过放电管屏面上的荧光粉转变成可见光。
The ultraviolet light is then converted to visible light by phosphors on the surface of the discharge tube.
远期目标是利用室内光源放出的可见光传输数据。
The long-term hope is to transmit data using visible light emitted by indoor lighting.
还有的设备能够测量可见光以外的光谱。
Other devices can measure wavelengths that fall well outside the visible spectrum.
其中大部分是可见光，所以我们很清楚地感觉到它。
Much of this is visible light, so that we are well aware of it.
对可见光透明。
对可见光透明。
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