They meet eight different military specification tests for high and low temperatures, vibration, altitude, dust and more.
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Both are rated to pass the MIL-STD-810F standards, which are a suite of tests encompassing the device's ability to operate under high temperatures, low temperatures, and resist dust -- even how susceptible its circuitry is to cause an explosions in a flammable environment.
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The blaze quickly moved through the area as Southwest Idaho remained under a red flag warning Sunday and Monday because of high temperatures, low humidity and high winds conditions conducive to explosive and destructive fires.
Lightning started some, and a deadly combination of dry conditions fuelled them: high temperatures, low humidity and strong winds.
Dr Brain found that the burnt bones from Swartkrans could be sorted into types that had been burnt at low and high temperatures.
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But far worse, it melted at high temperatures and became brittle at low ones.
In the meantime, Weather Channel has used a simpler measure, called "feels like, " to express temperature in a temperature-like number, taking into account wind chill at low temperatures and humidity at high temperatures.
The bills' polymer material was exposed to temperatures as high as 284 degrees Fahrenheit and as low as minus-103 degrees in the central bank's laboratories and in a series of independent labs, according to Martine Warren, chemist and scientific adviser at the Bank of Canada.
With this coastal low, they do anticipate that there could be some high winds, some substantial rainfall, and some even cooler temperatures.
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