Comments on "Is there a potential energy in just sitting in a chair for a long time like 20 minutes?"
More: Build more satiligt? I need some help with a few simple CHEMISTRY questions?? It is impossible to draw triangle with sides a,b,c and medians (2/3)a,2/3)b and (4/5)c? Please help me with these question ... Thanks in advance !? Is Non-Euclidean geometry applicable to real life situations?