To the human eye, orange is a very hot color, so it gives the sensation of heat.

在人眼看来，橙色是热力四射的颜色，因此它给人以热的感觉。

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On the standard Scoville heat scale (Bell peppers 0, the hottest Indian jolokia peppers 1,000,000) orange habaneros run 100,000 to 350,000.

如果以标准斯科威尔辣度指数（Scoville heat scale：甜椒为0，最辣的印度断魂椒为100万单位），黄色哈瓦那辣椒的辣度在10万至35万之间。

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Just before serving, heat up the grill and peel and slice the oranges cross-ways. Place orange slices in a baking dish and spoon on remaining palm sugar evenly over slices.

在食用前，加热烤架，剥去橘皮，把橘子交叉切成薄片，把橘子薄片放在烤碟中，用勺把剩下的糖均匀撒在橘片上。

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Not surprisingly, the California Milk Processor Board got a lot of heat and negative feedback as reported by the Orange County Business Journal.

FORBES: Milk Cures PMS!

The iconic orange bumper is back, this time to protect a USB key from heat, cold, and 100m drops.

ENGADGET: Lacie USB 3.0 RuggedKey now shipping: $40 for 16GB, $70 for 32GB

The acid from the lime, lemon or orange juice changes the structure of the proteins in the fish much in the same way that heat does. (If you make it at home, you can observe the flesh turning from translucent to opaque.) Therein lay my answer.

NPR: Cool and Comforting Ceviche