Armchair Astronaut Style - what amazing footage! Here's a video clip from the presentation of High Altitude Adventures by Jason Madigan at our last SEMS meeting. The audio has been removed so now this video clip mimics the dead silence we experienced when we watched this for the first time. How quiet space is. Jason launched a helium balloon fitted with a GPS tracker, GSM modem and a HD camcorder using an Arduino Mega 2560 as a control board and gave us a fantastic presentation on the process, from start to finish. Thanks again Jason.