Danny Bowman’s Spherical Solar Balloons

20' diameter, 5-gore solar hot air balloon

20' diameter balloon on landing

Danny Bowman has just published on the array of 20’ solar hot air balloons he and Sarah Albert flew with a network of infrasound sensors. On his blog you can find instructions for the 20’ balloons, which are made from HDPE painters’ drop cloth and packing tape, and darkened with charcoal.

Danny and company are currently preparing a massive 40’ balloon at the Albuquerque International Balloon Museum, and he’s posted some videos of the assembly currently underway on his Twitter:

I can’t wait to see what the future holds!