New Sandia balloon-borne infrasound sensor array detects explosions

Danny Bowman, a Sandia National Laboratories geophysicist, launched a fleet of five solar-powered hot air balloons last year. They reached a height of 13 to 15 miles, twice as high as commercial jets, and detected the infrasound from a test explosion. Infrasound is sound of very low frequencies, below 20 hertz, which is lower than humans can hear, and can be used to monitor explosions, including those caused by nuclear tests. Bowman is also working with NASA to explore the possibility of sending these balloons to Venus and Jupiter.

New Sandia balloon-borne infrasound sensor array detects explosions

Sheets of plastic similar to that used for garbage bags, packing tape, some string, a little charcoal dust and a white shoebox-size box are more than odds and ends. These are the supplies Danny ...

Thu 11 Jan 18 from Phys.org

New Sandia Balloon-Borne Infrasound Sensor Array Detects Explosions, Thu 11 Jan 18 from Newswise

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