It has been as a result of cracks in the wells or surface spillages.

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While it stands up to rainfall, spillages and the obligatory throw-the-phone-into-a-bowl-of-water test, the device won't function underwater.

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Ms Kaur was trained in the use of mercury, said Ms Cohen, and was taught how to handle it safely and deal with spillages.

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The surfcentres have a fruit-machine-like appearance with 500mhz computers under an angled-screen front that allows easy access to the keyboard but is designed to prevent damage from beer spillages.

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"Splash-proof Xperia Tablet S is designed for real-life use around the home and outdoors, so there's no need to worry about casual water spillages if you're checking a recipe in the kitchen with wet hands, " it said in its marketing materials.

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