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Solar Balloons

All articles tagged with #solar balloons

science-and-technology2 years ago•2 min saved

Unexplained Stratospheric Noises Detected by Solar Balloons

Researchers from Sandia National Laboratories in New Mexico have used solar-powered balloons to capture mysterious sounds in Earth's stratosphere, including thunder, ocean waves colliding, propeller aircraft, city sounds, suborbital rocket launches, earthquakes, and several unidentified noises. The balloons carried infrasound recorders up to 70,000 feet, and some of the mysterious infrasound signals occur a few times per hour during flights, but their source remains unknown.

via Boing Boing|

#earths-stratosphere #infrasound #mysterious-sounds

science-and-technology2 years ago•5 min saved

Unexplained Sounds Detected in Earth's Stratosphere.

Solar balloons were sent 70,000 feet up in the air to record sounds of Earth’s stratosphere, and the microphones picked up some unexpected sounds. The balloons can take sensors twice as high as commercial jets can fly. The researchers tracked their balloons using GPS, since they can travel for hundreds of miles and land in inconvenient locations. The advantage of the high altitude reached by the balloons means that noise levels are lower and the detection range is increased — and the whole Earth is accessible.

via KSLTV|

#earths-atmosphere #infrasound #sandia-national-laboratories

science2 years ago•5 min saved

Unexplained sounds detected in Earth's stratosphere by solar-powered balloons.

Solar balloons sent up to 70,000 feet in the stratosphere have recorded sounds including colliding ocean waves, thunder, earthquakes, and even unknown sounds. The balloons, built by researchers at Sandia National Laboratories, cost around $50 to make and can be assembled on a basketball court. The researchers attached microbarometers to the balloons to record low-frequency sounds, and GPS to track them. The researchers are investigating the soundscape of the stratosphere and trying to determine the origin of the rumbles. The balloons could one day be used to explore other planets.

via KSL.com|

#infrasound #research #science

science2 years ago•5 min saved

Unexplained sounds detected in Earth's stratosphere perplex scientists.

Solar balloons sent up to 70,000 feet in the stratosphere have recorded a range of sounds, including colliding ocean waves and unidentified crackles and rustling. The balloons, which can carry sensors twice as high as commercial jets, were built by researchers at Sandia National Laboratories in New Mexico for around $50 each. The balloons are made of painter’s plastic, shipping tape and charcoal dust, and can be assembled on a basketball court. The researchers attached microbarometers to the balloons to record low-frequency sounds, and tracked them using GPS. The researchers are now trying to identify the signals recorded during the flights.

via CNN|

#infrasound #nasa #research