TechKnow - Early earthquake warnings and 'smart guns'

TechKnow - Early earthquake warnings and 'smart guns'

TechKnow - Early earthquake warnings and 'smart guns'

TechKnow explores early earthquake detection systems and a new 'safer' gun with user-recognition technology.

User: Al Jazeera English

Views: 9

Uploaded: 2015-06-23

Duration: 24:02

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