In 1783, hot air balloons became the first viable option ... from cloth balloons and open baskets to polyethylene balloons and metal pressurized gondolas that allow for high-altitude atmospheric ...

Mainland scientists have discovered a "super material" that is as light as a balloon yet as strong as metal, which could be developed by the mainland's military into armour that protects troops ...

Cascade PBS helps your community explore new worlds and ideas through programs that educate, inform and inspire. Your tax-deductible donation helps make it all possible. PBS North Carolina and Sci NC ...