Several others, such as Japan and Indonesia, used thermographic devices to test the temperature of passengers arriving from Mexico.

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But as you test the temperature, what would you say it is at this point in terms of reaching some agreement?

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Here's how the probabilistic forecast test would work for temperature, for instance: forecasters would be given 100 notional forecasting "tokens" for every forecast.

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The flames reached a temperature of 3, 000 degrees in the test chamber, Birky said.

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