Related by context. Frequent words. (Click for all words.) 42 polar vortex 41 Alfred McEwen 37 comet tail 35 soundwaves 34 moon Enceladus 34 vortices 33 magnetic flux 33 helium atoms 33 electromagnet 33 computer simulations 33 wavelets 32 Cassini imaging 32 numerical simulations 31 centrifugal force 31 mesosphere 30 inchworm 30 spherical 30 ellipsoid 30 meteoroid 30 quantum entanglement 30 thundercloud 29 positron 29 spacetime 29 Bottke 28 planetary geologist 28 torus 28 coronal 27 muon 26 Tesla coil 26 whirls 26 maser 26 rotating blades 26 physicists 25 Brownian motion 25 climatology 25 physics 25 Robock 25 Paul Dirac 24 Durda 24 helicopter rotor blades 24 electromagnetic pulses 24 Michio Kaku 24 levitates 24 Filippenko 24 Melosh 24 Jack Horkheimer 24 electromagnetism 24 Hadron Collider 24 physicist 23 Gravitational 23 laminar 23 magnetron 23 volcanic plume 22 Dessler 22 Planetary Physics 22 dirigible 22 moonbeam 21 contrails 21 Caltech 21 housefly 21 Neutrons 21 earthward 21 zaps 21 Schrödinger 21 Dirac 20 Physicist 20 paleoclimatologist 19 Bernoulli 18 aether 17 chemtrails 17 Physics 17 WIMP 17 Newtonian 16 thermodynamics 16 Roger Highfield 16 Halley comet 16 Climatology 16 sailplane 16 Heisenberg 15 Cyclotron 15 particle physicist 14 Atmospheric Chemistry 14 quantum physicist 14 volcano erupting 13 theoretical physicist 13 roboticist 12 Whirling 12 cosmologist 11 Particle 11 Astronomer 11 Othmer 11 Astrophysicist 10 Heraclitus 10 sword swallower 9 Flying Circus 8 Quantum Mechanics 8 Richthofen 7 Zoologist 4 Thermodynamics 3 WG Sebald 0 Professor