in this instructable I will explain the principle of flight hot air balloon (known as sky lanterns). I had hot air balloons for school project, so,I thought that it might be interested to other people see how hot air balloons works and I translate it from my language.
About tutorial for making hot air balloons, there is full instructable.com of it,so, just search a little bit. :)
Sorry for possible grammar mistakes in advice, english isn't my mother language.
If you have any questions, or ideas for some new projects, just ask below or send me PM.
So, here we go! :D
If you will like it, feel free to vote!