Esa writes – “Here’s a huge hot air balloon made from grocery bag plastic. It generated enormous lifting power, so much that several persons couldn’t hold it down. It flew for 200km in winter even though the heating source “failed”. The balloon continued to fly being heated by the winter sun.”Link.

  • modulo9

    After 3 months the balloon fell to the ocean. Resembling a giant jelly fish , it was then injested by a giant sea turtle….