核心畫面
Picture rays or spreading outward from a source in every direction, the way light and heat pour off a fire. Radiation is energy travelling out like that.
可以想成能量像光線一樣，從一個中心朝四面八方射出去——就像火堆把熱和光不斷往外送。radiation 講的就是這種「…更多收起
可以想成能量像光線一樣，從一個中心朝四面八方射出去——就像火堆把熱和光不斷往外送。radiation 講的就是這種「以波、以射線往外傳」的能量。From the word’s history
From Latin radiatio 'a shining', from radiare 'to beam, shine', from radius 'ray of light; spoke of a wheel'. The picture underneath is rays shooting out like spokes from a hub.
來自拉丁文 radiatio（發光），源自 radiare（放光、照射），再往上是 radius（光線、車輪的輻條）。底下那張圖就是射線像車輪的輻條一樣，從中心一根根往外散出去。
etymonline.com/word/radiation; etymonline.com/word/radius
原始詞典資料6 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
radiationnoun/ˌɹeɪ.diˈeɪ.ʃən/
- 1
The shooting forth of anything from a point or surface, like diverging rays of light.
- The radiation of love from the crowd was addictive to the young singer-songwriters.
- 2
The process of radiating waves or particles.
- 3
The transfer of energy via radiation.
- 4
Radioactive energy.
- It's Christmas at ground zero / And if the radiation level's OK / I'll go out with you / To see all the new / Mutations on New Year's Day
- 5
A rapid diversification of an ancestral species into many new forms.
- So the question is: have plants and animals retained over this huge amount of time—whole radiations of mammals have come and gone in this period—have they retained these potentially costly characteristics?
- The second [canid group] is the radiation of dogs in South America that began when the first canids arrived about 3 Ma, after crossing the Panama land bridge (Fig. 5.4).
這個拼法也被記錄為下列字的變化形：
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。