Uruguay declares end to water crisis

Uruguay's government on Wednesday declared an end to a water crisis in the capital and surrounding areas, after a record drought pushed the country's potable water supply to the brink.

The bubbly chemistry behind carbonated beverages

Many people love the refreshing effervescence of a soda, champagne, beer or sparkling water. When you take a sip, the gas bubbles in the beverage burst, and the released gas tickles your nose. But have you ever wondered how ...

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