#physical_phenomenon  a natural phenomenon involving the physics of matter and energy
  subtype:  atmospheric_phenomenon  boundary_layer  chaos  decalescence  electrical_phenomenon  electricity  energy  power {ectropy entropy}  event.physical_phenomenon  field_of_force  force  hysteresis  resonance  mechanical_phenomenon {opacity transparence}  optical_phenomenon  pressure_level  radiation  reflection.physical_phenomenon  refraction  resolving_power  resolution.physical_phenomenon  conduction  propagation  fundamental_interaction  surface_tension  syzygy  turbulency  floatation
  supertype:  natural_phenomenon__naturalphenomenon  all non-artificial phenomena
     supertype:  phenomenon  any state or process known through the senses rather than by intuition or reasoning
        supertype:  process__proces__physicalsituation  intuitively, the class of things that happen and have temporal parts or stages; examples include extended events like a football match or a race, actions like pursuing and reading, and biological processes; sumo#process is not identical to pm#situation because an instance of pm#situation is not necessarily an instance of sumo#physical
           supertype:  situation  something that "occurs" in a real/imaginary region of time and space
              supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type
           supertype:  process_or_process_description
              supertype:  processing_thing
                 supertype:  thing_playing_some_role  category to classify things according to roles/viewpoints; classification under this category is application-dependant
                    supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type
           supertype:  physical__physical_thing  an entity that has a location in space-time; locations are themselves understood to have a location in space-time; click here for more details on the identical category sowa#physical_thing
              supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type

3 statements are about indirect instances of physical_phenomenon: graph1_on_work.energy, graph1_on_electromagnetism, graph1_on_radiation
  click here to display them or click here for a search form or here to add a statement