這是一篇刊登在 Hypertextbook 裡的一篇文章，標題就是「紙張的燃點」，第二段中作者解釋了燃點的定義─物體燃燒或自燃時的溫度，而紙張的燃點是華氏451度或攝氏233度！因為之前忽然想到這個疑問，所以就去查了一下，不過每一種紙的燃點都不同，經過塗佈的紙，如道林紙、雪銅、特銅還有超薄的聖經紙，不知道會不會因為塗料或厚度而使得燃點變高或變低....
原文如下：
Paper is a material made of cellulose pulp, created mainly from wood, rags, and certain grasses, processed into sheets or rolls by deposits from an aqueous suspension. According to history, the first piece of paper was produced in 105 CE in China. At first, paper production was available in China only, but eventually the process spread throughout the world. Over time, the process has been refined and edited by incorporating the latest technology. Presently, the United States and Canada are the world's largest paper producers, as Finland and Japan produce the most significant amount of pulp and other paper products. Paper has many purposes, both recreational and business. Paper is used mainly for writing, drawing, printing, and for various coverings such as wallpaper. Even though we don't realize it, paper is a necessity in our professional lives, whether we use it to write our daily plans and records, or use it to do other writing assignments. There are many different paper products, from paper folders, to playing cards, to wallpaper or even bathroom tissue and junk mail. Among the various types of paper available, the surface is basically either smooth and glossy or rough and plain. But despite the type of paper, the chemical and physical properties are roughly the same.
Ignition temperature is the temperature at which something catches fire and burns on its own. The ignition temperature of paper is 451 degrees Fahrenheit, or 233 degrees Celsius.
Many people know this value from the Ray Bradbury novel, Fahrenheit 451, an anti-utopian tale about a society where firemen are in charge of burning books instead of stopping fires. This number was also found in more technical sources, so it is assumed to be reliable.
Lewis Chung -- 2003
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