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  1. There are different types of radiation in space. EM radiation is one of ...space we do not have such luxury therefore, all of these radiations have to be ...

  2. 黑色物件同時是 good radiation absorber 及 good radiation emitter ,白色物件則是 bad radiation absorber...吸熱及散熱的影響時,我們要了解熱的傳送有三種方法: ...

  3. ... a general physical process whereby some forms of radiation, such as light or moving particles, for example... events, so that the final path of the rad ...

  4. ...often leave them in excited states which can emit radiation as those states decay. The radiation is often of a characteristic...

  5. ...order of increasing frequency): radio waves, microwaves, terahertz radiation, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma ...

  6. ...past the event horizon. The name comes from the fact that even electromagnetic radiation (e.g. light) is unable to escape, rendering the interior ...

  7. 其實,太陽的輻射是接近「黑體輻射 black body radiation」,所以只要觀察量度太陽光的光譜,便可透過「黑體輻射」有關的公式,計算出...

  8. ... 1944, Hendrik van de Hulst predicted microwave radiation at a wavelength of 21 cm, resulting from interstellar atomic hydrogen gas; this radiation... ...

  9. ... 甚 麼 是 黑 體 輻 射 (Blackbody Radiation) , 我 們 先 了 解 甚 麼 是 黑 體 (...

  10. ... droplets tend to scatter light efficiently, so that the intensity of the solar radiation decreases with depth into the cloud, hence the gray or even ...