The claim is that the standard piston engine, with straight up - and - down path, causes lots of friction with the walls while the piston travels through the chamber. (mechanics.stackexchange.com)
MB: Other people have lots of friction with what I do. (whitewall.art)
Strong temperature differentials between the stormy area and the region in front of the storm, can cause air to rise quickly, creating lots of friction and charge separation. (sciencenewsforstudents.org)