Hit the randomizer button on your favorite webcomic, engage in cube warfare with a co-worker, or check out a website that offers a "Joke of the Day" service.
你可以随意浏览下你最喜欢的网络漫画，和你的同事一起参加立方体战，或是看看有“每日笑话”的网页。
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This impressive chart assembled by the web-based science "comic" XKCD shows how doses scale up in sieverts, the units by which absorption of radiation into living tissue is measured.