Anthropogenic nitrogen inputs account for about 80% of all nitrogen fluxes in ecosystems. There are multiple sources of atmospheric reactive nitrogen (Nr) fluxes. At higher frequencies, leaked fluxes and varying charge densities in conductors become significant. Both of these fluxes occur by passive diffusion. Polonium can also be produced by high neutron fluxes in nuclear reactors. The irreversible reactions provide the thermodynamic constraints needed to find the fluxes. The Redfield ratio is instrumental in estimating carbon and nutrient fluxes in global circulation models. Zeotropic mixtures and pure liquids also have different critical heat fluxes. The various forms of communication include neurotransmission, ion fluxes and signaling molecules. Inorganic fluxes contain components playing the same role as in organic fluxes. Zinc chloride finds wide application in textile processing, metallurgical fluxes, and chemical synthesis. Another problem is that superconducting magnets are damaged by neutron fluxes. The following tables offer estimates of oxygen cycle reservoir capacities and fluxes. The atmosphere also gains heat by sensible and latent heat fluxes from the surface. Small fluxes of cosmic rays are present continuously.