Advanced radar can detect a living person 30 feet below crushed materials.
via Discovery News http://news.discovery.com/tech/gear-and-gadgets/space-radar-could-help-find-buried-victims-130926.htm#mkcpgn=rssnws1
via Discovery News http://news.discovery.com/tech/gear-and-gadgets/space-radar-could-help-find-buried-victims-130926.htm#mkcpgn=rssnws1
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