Drones provide wi-fi for disaster relief

submitted by: nsf
At the Smart America Expo, Yan Wan from the University of North Texas exhibited unmanned aerial vehicles (UAVs) she developed that are capable of providing wireless communications to storm-ravaged areas where telephone access might be out. Typical wireless communications have a range limit of only a hundred meters. However using technology developed by Wan and her colleagues, they were able to extend the Wi-Fi reach of drones to five kilometers. In a grant from NSF, Wan is applying...

Perception of Danger in Tornado Alley

submitted by: nsf
Could lightening really strike twice? It often does in Tornado Alley, where storms wreak havoc and crush entire communities in minutes. But do people see it that way? After the 2006 Iowa City tornado, psychologist Jerry Suls and colleagues at the University of Iowa explored how Iowa City's residents perceived the risk of being hit by tornadoes in the future—perceptions that could have implications for disaster preparedness and response. Credit: Produced by Amina Khan, National Science...

Science Nation - Firefighter Tracker

submitted by: nsf
Firefighters risk their lives every time they run into a burning building. But, new technology may soon be watching their backs, no matter how far they venture into the flames and smoke. With support from the National Science Foundation, TRX systems is developing a new sensor system that can track firefighters where GPS units often fail. Firefighters who are currently testing the new system wear a portable device called the Sentrix tracking unit, which is actually a suite of sensors that can...

Learning from Katrina: Importance of Mass Media Communication Activities and Community Readiness During a Natural Disaster

submitted by: jackykim

This study focuses on the importance of mass media communication activities and the role of community outreach before, during, and after a natural disaster, specifically the October 2007 San Diego Wildfires. Using the events that followed Hurricane Katrina in 2005 as a framework, this study analyzes how the actual media coverage of each event was portrayed to the public – which includes printed publications, broadcast journalism, and internet-based blogs.

Amazing Earth 2

submitted by: scivee-team

A documentary about volcanic eruptions, their causes and effects on Earth and the geological implications of those events in history and in the future - Part 2.