Liz: Tomorrow, Eben and I are getting up at sparrowfart to go and stand in a field with Dave Akerman, where we will “help” him launch a balloon equipped with a Pi. This time the balloon, rather than going for an altitude record, is intended to travel a long distance laterally; we’re hoping it’ll make it to Poland in the 24 hours we have before its batteries run out

Read the original here:
Guest post: more high altitude ballooning from Dave Akerman