peral 
peral last signed in Nov 23 2009 and has been on Bukisa since Oct 13, 2009.
About Me:
How to Build a Mini Hot Air Balloon
Published October 19, 2009 / 
0 comments / 
0 comments / Once the only successful human-carrying flying vehicle in existence, hot air balloons are nowadays used more for leisure activities than for actual transportation. The basic science behind hot air balloons is the difference in density between cool and warm air. Air that is heated by the use of a burner
I haven't added any favorites yet.
I haven't recieved any comments yet.
I haven't left any comments yet.
