Yahoo奇摩 網頁搜尋

  1. Radiation , as used in physics, is energy in the form of waves...on its effect on atomic matter. The most common use of the word " radiation " refers to ionizing radiation . Ionizing radiation ...

  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:輻射 radiation ,傳導 conduction,對流 convection。顏色對傳導及對流是沒有影響...

  3. Radiation as used in physics, is energy in the form of waves or... for example), this is commonly called Wave-particle duality). Radiation can be ionizing or non-ionizing radiation , depending on ...

  4. 1) Infrared Radiation is a kind of electromagnetic radiation with a wavelength between... of the universe. However, strong infrared radiation in certain industry high heat settings may constitute a...

  5. 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 shielded before space travel ...

  6. 兩者的分別,是在說明那一個波(wave)的波長(wavelength)。顧名思義,即short wave radiation 是指一些波長短的波,通常是指比可見光波長為短的波,如紫外光(ultra-violet...

    分類:科學及數學 > 地理學 2009年05月31日

  7. Infrared radiation (heat radiation , or thermal radiation ) from the sun is of short wavelengths...by objects inside a greenhouse, the object emits its own infrared radiation . However, because of the low temperature of the object (about 30~40 degrees...

  8. ...黑色3,咪emmit得快點 其實,真正係夏天,熱我地既係太陽 而refer to definition of radiation 1) all object radiate energy, whether they are hot or cold 2) the hotter...

  9. Solar radiation = 太陽輻射 即係由太陽黑子活動而釋放的輻射; 主要為短波輻射(shortwave radiation ...向地球傳送,故稱為太陽輻射 -它的電磁波波長較短,又稱為短波輻射(shortwave radiation ) -根據太陽短波輻射,又可分為三類(太陽光譜solar spectrum) (1) 短波輻射:包括...

    分類:科學及數學 > 地理學 2007年09月20日

  10. Action (B) wil increase the radiation dose to a person. Passengers in high flying planes are...