SimilarityRank
cosmic_ray 0.774 60042
neutron 0.768 24797
photon 0.746 18937
proton 0.724 20444
neutrino 0.720 41916
ionize_radiation 0.716 79693
radiation 0.695 5557
electromagnetic_radiation 0.690 65326
electron 0.687 9389
radiation_from 0.687 89043
X-ray 0.681 14504
supernova 0.678 47013
isotope 0.669 40195
an_electron 0.663 98873
radio_wave 0.657 55042
electromagnetic_wave 0.654 81340
visible_light 0.653 54663
radioactivity 0.650 39280
these_particle 0.648 95022
detector 0.646 8841
magnetic_field 0.642 15604
the_solar_wind 0.641 80824
spectroscopy 0.639 29325
wavelength_of 0.636 44330
quasar 0.635 61018