cloud
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Video of the Day: Ring-like clouds spotted above Mount Etna
Mount Etna in Sicily, Italy has been drawing attention over the last week as what appear to be “volcanic smoke rings” rise over the island volcano. Locals have reported seeing these rings since April 2. The rings are actually vortex rings, which are made of condensed water vapor, not smoke.
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Smartphones pose security risks
Smartphones offer convenience but also open avenues for hackers to obtain personal data. (Saul Marquez)
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Living life in the cloud
More than 50 million people use Dropbox to upload more than one billion files every 48 hours, as stated on Dropbox's website. According to Apple, more than 100 million people use iCloud.
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