#attractive_force__attraction  the force by which one object attracts another
  exclusion:  #repulsive_force
  supertype:  #force  the physical influence that produces a change in a physical quantity; "force equals mass times acceleration"
  subtype:  #affinity  (immunology) the attraction between an antigen and an antibody
  subtype:  #chemical_bond__bond  an electrical force linking atoms
     subtype:  #covalent_bond  a chemical bond that involves sharing a pair of electrons between atoms in a molecule
        subtype:  #coordinate_bond__dative_bond  a covalent bond in which both electrons are provided by one of the atoms
     subtype:  #cross-link__crosslink__crosslinkage  a side bond that links two adjacent chains of atoms in a complex molecule
     subtype:  #hydrogen_bond  a chemical bond consisting of a hydrogen atom between two electronegative atoms (e.g., oxygen or nitrogen) with one side be a covalent bond and the other being an ionic bond
     subtype:  #ionic_bond__ionicbond__electrovalent_bond__electrovalentbond__electrostatic_bond__electrostaticbond  a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains to electron to form a negative ion
     subtype:  #metallic_bond  a chemical bond in which electrons are shared over many nuclei and electronic conduction occurs
     subtype:  #peptide_bond__peptidebond__peptide_linkage__peptidelinkage  the primary linkage of all protein structures; the chemical bond between the carboxyl groups and amino groups that unites a peptide
  subtype:  #gravity__gravitation__gravitational_attraction__gravitationalattraction__gravitational_force__gravitationalforce  the force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near its surface; "gravitation cannot be held responsible for people falling in love"--Albert Einstein
     subtype:  #solar_gravity__solargravity  the gravity of the sun; "solar gravity creates extreme pressures and temperatures"
  subtype:  #magnetism__magnetic_attraction__magnetic_force  attraction for iron; associated with electric currents as well as magnets; characterized by fields of force
     subtype:  #electromagnetism  magnetism produced by an electric current; "electromagnetism was discovered when it was observed that a copper wire carrying an electric current can magnetize pieces of iron or steel near it"
     subtype:  #antiferromagnetism  magnetic field creates parallel but opposing spins; varies with temperature
        subtype:  #ferrimagnetism  a phenomenon in ferrites where there can be incomplete cancellation of antiferromagnetic arranged spins giving a net magnetic moment
     subtype:  #diamagnetism  phenomenon exhibited by materials like copper or bismuth that become magnetized in a magnetic field with a polarity opposite to the magnetic force; unlike iron they are slightly repelled by a magnet
     subtype:  #ferromagnetism  phenomenon exhibited by materials like iron (nickel or cobalt) that become magnetized in a magnetic field and retain their magnetism when the field is removed
     subtype:  #paramagnetism  materials like aluminum or platinum become magnetized in a magnetic field but it disappears when the field is removed
  subtype:  #van_der_Waal's_forces  relatively weak attraction between neutral atoms and molecules arising from polarization induced in each particle by the presence of other particles

1 statement is about an indirect instance of #attractive_force (#electromagnetism): pm#graph1_on_electromagnetism click here to display them or click here for a search form or here to add a statement


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