1. There is new technology. It was designed for use in disaster zones.
There is new technology that was designed for use in disaster zones.
2. Dr Paul Gardner-Stephen is a computer researcher at a university in Australia. He developed a way for people to communicate after a natural disaster.
Dr. Paul Gardner-Stephen, who is a computer researcher at a university in Australia, developed a way for people to communicate after a natural disaster.
3. He designed a new technology that lets people communicate by cell phone where there is no wireless network or the wireless network has been destroyed. It's called "mesh networking."
He designed a new technology called "mesh networking" that lets people communicate by cellphone where there is ....
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