Assertion: friction | /r/HasProperty | physical
Facets:
Source sentences:
text: Friction, be it physical or metaphorical, may be a continuous, smooth function or may contain jumps; it may be constant, linear, or nonlinear or a combination of jumps and proportional effects, as with Intermodal freight transport and Intermodal passenger transport.
text: Friction is an everyday physical phenomina and yet the precise mechanisms underlying it at the microscopic scale are still not completely understood.