白平衡是摄影的基本要素之一，但很多数码相机用户都没有完全理解它，更谈不上灵活运用。 不过白平衡是非常值得花功夫学习的，会对你拍摄的照片有非常大的影响。
White Balance is an aspect of photography that many digital camera owners don’t understand or use – but it’s something well worth learning about as it can have a real impact upon the shots you take.
在他们的实验室中，调查人员运用传感器，照相机以及替他设备来测量女性两腿上的力度和冲击波。这些女性的年龄跨度从18岁至40岁。每人都会穿三个类型的鞋子走路。
In their lab, the researchers used sensors, cameras and other equipment to measure the forces and shock waves in the legs of women, ages 18 to 40, as they walked in each type of shoe.
而且黑客似乎只能在塑料键盘上运用这个方法，因为金属会反射出大量的热量干扰波，从而使得红外摄相机无法准确识别。
And the hack only seems to work on plastic keypads — metal returns too much heat noise for the IR camera to reliably discern with keys were just pressed.
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