News tagged with puzzle

Smart toys without the batteries

The greatest challenge in entertaining young children is keeping their toys powered up. Now, one group reports in the journal ACS Sustainable Chemistry & Engineering that they are one step closer to battery-free interactive ...

dateJul 19, 2017 in Energy & Green Tech
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A digital safe for sending confidential documents

To secure the storage and transfer of documents, two post-docs at EPFL have recently developed three solutions. The solutions use encryption to render documents inaccessible to anyone who does not possess the secret code ...

dateOct 03, 2014 in Security
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