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(Click for frequent words.) 55 optical illusions 48 illusion 45 trompe l' 44 teardrop shape 44 abstract geometric 44 funhouse mirror 44 pareidolia 44 curvature 44 equilateral triangle 44 geometrical 43 zoetrope 43 isosceles triangle 43 macroscopic objects 43 zodiacal light 43 parallax 43 archer bow 43 oblique angle 43 curved 43 parallax barrier 43 inkblot 42 funhouse mirrors 42 ethereal glow 42 foreground galaxy 42 moon gravitational pull 42 apparition 42 iridescence 42 gravity warps 42 trompe l' oeil 42 ejecta blanket 42 artificial 42 camera obscura 41 fractal pattern 41 MC Escher 41 armillary sphere 41 inattentional blindness 41 concave mirrors 41 biomorphic 41 nautilus shell 41 concave 41 tetrahedron 41 perfectly symmetrical 40 spinning clockwise 40 Epsilon Aurigae 40 greenish tinge 40 illusionistic 40 perspectival 40 earthshine 40 inverted cone 40 illusionary 40 fractals 40 hyperbolic geometry 40 imaginary 40 artist MC Escher 40 Heisenberg uncertainty principle 40 incongruence 40 Koosh ball 40 elongated 40 gyroball pitch 40 relativity theory 40 ellipse 40 microcircuitry 40 light refracting 40 sided polygon 40 oddly shaped 40 sculpturally 40 cubistic 40 sfumato 40 oblate spheroid 40 reddish glow 40 Rorschach inkblots 40 Tinkertoy 40 optical aberrations 39 synesthete 39 elongated orbits 39 iridescent glow 39 Unidentified Flying Object 39 fractal 39 Einsteinian 39 silhouette 39 polyhedrons 39 hourglass shape 39 graceful curves 39 elliptically shaped 39 airplane contrail 39 Quantum entanglement 39 foreshortening 39 contrail 39 mirrorlike 39 Doppler Effect 39 intricate mosaic 39 contrails 39 superluminal 39 sensuous curves 39 geometric pattern 39 geometrical shapes 39 temporal contiguity 39 gravitational lens 39 Leonardo DaVinci 39 Mobius strip 39 binocular disparity 39 oddity 39 bluish tint 39 telescope eyepiece 39 pinwheel shaped 39 Invisibility cloak 38 pointillist painting 38 oblong shape 38 yellowish hue 38 mirage 38 celestial mechanics 38 spherical 38 swinging pendulum 38 amazingly lifelike 38 wavelike 38 Escher esque 38 digitally manipulated 38 symmetry 38 sundog 38 geometric 38 planetary nebulas 38 trompe l'oeil 38 Vitruvian Man 38 untutored eye 38 Coriolis Effect 38 elongated teardrop shape 38 planet Uranus 38 tessellations 38 fallacy 38 Extrasolar planets 38 binocular rivalry 38 Helix Nebula 38 stereopsis 38 Schroedinger cat 38 Viewmaster 38 chevron shaped 38 ViewMaster 38 hologram 38 concave mirror 38 electron orbits 38 Pointillism 38 spoked wheel 38 striations 38 parabola 38 ovular 38 starscape 38 polygonal shapes 38 interstellar magnetic 38 Etch Sketch 37 uncannily lifelike 37 ingenious 37 holographic projection 37 asymmetrical 37 mosiac 37 brise soleil 37 Cherenkov radiation 37 moiré patterns 37 invisibility cloak 37 updraft 37 epicycles 37 Mona Lisa smile 37 trapezoidal shape 37 refracting 37 periodic oscillations 37 sculptural 37 mathematical theorem 37 Rayleigh scattering 37 scanning electron micrograph 37 iridescent colors 37 dragonfly wings 37 Spider webs 37 refracts light 37 dimensional holograms 37 awkward gait 37 lenticular clouds 37 Skinput 37 Spirograph 37 Puppet Warp 37 spherical object 37 undulating 37 spacetime 37 elongated oval 37 flattering silhouette 37 iridescent 37 superstring theory 37 vivid splashes 37 precognition 37 starlike 37 Arching 37 elliptical 37 Saturn moon Mimas 37 cat's eye 37 cloudscapes 37 trapezoids 37 auxetic 37 thermally induced 37 annular eclipse 37 sterile neutrinos 37 fritted glass 37 eggbeater 37 prolate 37 sculptural shapes 37 au naturelle 37 filamentary structures 37 elliptical shaped 37 sine curve 37 orb 37 unexplainable 37 false contouring 37 wavy 37 horizontality 37 gravitation 37 quantum particle 37 Kirlian photography 37 magnifying lens 37 infinity 37 Whiz bang 37 compass needle 37 shapes textures 37 spinning counter clockwise 37 iridescent sheen 37 Bessel beam 37 tininess 37 sunlight glinting 37 extraterrestrial UFOs 37 convex lens 37 convex 37 orange hue 37 comet Hale Bopp 37 translucent 36 seemingly weightless 36 concave surfaces 36 Picky eating 36 image dissector 36 optical cloaking 36 geometric shapes 36 phantasm 36 quasicrystal 36 rectangular 36 striation 36 invisibility cloaking 36 lateral flexion 36 isosceles triangles 36 infinity symbol 36 artifical 36 Trumbo bobblehead 36 sepia colored 36 conical shape 36 magnetic coil 36 equatorial bulge 36 carnival funhouse 36 Chromatic aberration 36 Marshal McLuhan 36 invisible 36 lensing galaxy 36 icosahedron 36 moire patterns 36 apatosaurus 36 Chladni 36 circularly polarized light 36 parallelogram 36 scrying 36 cloudlike 36 counter intuitive 36 hexagonal pattern 36 dumb jock myth 36 Van Gogh Starry Night 36 aberration 36 fisheye lens 36 elegantly curved 36 alien spacecraft 36 rosy tint 36 Eagle Nebula 36 MC Escher drawing 36 fluffy clouds 36 fractal patterns 36 gnomon 36 YORP effect 36 elliptic 36 pendulums 36 Kinect hack 36 holograph 36 greenish glow 36 dephasing 36 rebus 36 undulation 36 bacterial flagellum 36 beachball 36 photogram 36 flying saucers 36 topiary 36 reddish hues 36 zebra stripe 36 inverted 36 frictional resistance 36 isometric perspective 36 LCD viewfinder 36 unpleasing 36 dimly illuminated 36 dimensional 36 horizontal pleats 36 anthropic principle 36 scientifically testable 36 polyhedron 36 fuzzy blob 36 angular shapes 36 spherically 36 Rube Goldberg esque 36 insectlike 36 synesthesia 36 UFO hovering 36 concentric circular 36 refractions 36 quantum phenomena 36 Voorwerp 36 verticality 36 Snicko 36 octagonal 36 glowing orb 36 gravitational interaction 36 polychromatic 36 navel fluff 36 upsidedown 36 swinging pendulums 36 haloing 36 microsaccades 36 asymmetry 36 Rorschach blots 36 motion parallax 36 vertical slits 36 yellowish glow 36 old wive tale 35 bold brushstrokes 35 starburst 35 asterism 35 semitransparent 35 reflective surfaces 35 ghostly glow 35 intricate geometric 35 Duchampian 35 opalescent glass 35 butterfly wings 35 perpendicular 35 tiled mosaic 35 microlens 35 waviness 35 unnatural 35 photonic crystal 35 tholins 35 blurry 35 undulations 35 lunette 35 misty haze 35 similitude 35 Hawking radiation 35 dimple 35 threedimensional 35 contortionist 35 gravitational pulls 35 eye popper 35 kaleidoscope 35 glowing brightly 35 flower petal 35 equilateral 35 pixelized 35 counterintuitive 35 corkscrew shaped 35 flutter 35 oblong 35 impressionist painting 35 squint 35 exaggerated 35 swirly pattern 35 Platonic solids 35 sequined tights 35 supersolid 35 armless 35 inveterate tinkerer 35 mythic creature 35 Leonardo Mona Lisa 35 illusionism 35 cryovolcanism 35 indentation 35 Earth magnetotail 35 greenish tint 35 cloaking device 35 tilings 35 underexpose 35 lenticular prints 35 prevent diverse nonuniform 35 wavefunction 35 celestial sphere 35 e = mc2 35 Picasso esque 35 swirling vortices 35 ellipsoidal 35 planets orbits 35 nanostars 35 angular velocity 35 refract light 35 universal gravitation 35 Gerrit Rietveld 35 cosmic strings 35 lenticular 35 wavefronts 35 armillary 35 posterization 35 magnetic polarity 35 fanciful 35 jet contrails 35 reflection nebula 35 Subcutaneous fat 35 called gravitational microlensing 35 Bryan Guise 35 sculptured 35 pinhole camera 35 Dian Seidel research 35 curviness 35 noctilucent cloud 35 colored rectangles 35 Euclidean 35 gauzy veil 35 Daliesque 35 rhomboids 35 unreal 35 stereoscope 35 Noctilucent clouds 35 magnetic monopole 35 eclipsing binary 35 swimming manta ray 35 electromagnetic flux 35 rhomboid 35 Shellenberger pops 35 pentagonal 35 hap pening 35 infinite regression 35 stipple 35 obliquity 35 Saturn moon Iapetus 35 color fringing 35 shiny metallic 35 metamaterial structures 35 hyperbolized 35 waterspout 35 brownish hue 35 Brownian particles 35 mirages 35 polygon shaped 35 phenomenon 35 comet tail 35 hexagons 35 X ray scattering 35 sideward 35 Helix nebula 35 infinite expanse 35 horizontally polarized 35 negative refraction 35 circularly 35 refraction 35 magma mixing 35 inverted curve 35 fallacious logic 35 opalescent 35 abstracted landscapes 35 Star Trek transporter 35 stroboscopic 35 eyepiece 35 intuiting 35 illusory 35 atmospheric haze 35 unsatisfyingly 35 vapor trail 35 Brownian motion 35 Schrodinger cat 35 mentalism 35 Einstein equations 35 absolute belter 35 glassless 35 retrograde orbit 35 gibbous 34 espalier 34 astrolabe 34 mental telepathy 34 mis shapen 34 magnetic monopoles 34 boomerang shaped 34 Kuiper belt objects 34 defy gravity 34 attosecond pulse 34 symmetrical 34 sundial 34 Horsehead Nebula 34 keyhole shaped 34 casual observer 34 zigzag 34 spine curvature 34 quantum weirdness 34 airspeed indicator 34 misshapen 34 ripply 34 photolithographic techniques 34 curvilinear 34 hyperbolic paraboloid 34 Spiral galaxies 34 elongated limbs 34 rotational symmetry 34 jack o'lantern 34 phantom limb pain 34 spyglass 34 flying buttresses 34 enigma 34 curving 34 translucently 34 massless particles 34 geometric forms 34 otherworldly 34 spherical objects 34 inherently unstable 34 anthropic 34 dust motes 34 watercolor washes 34 helmet visor 34 spicule 34 Weightlessness 34 rectangle 34 convex mirror 34 bluish 34 parabolic 34 oculus 34 finely layered 34 relativistic jets 34 gridwork 34 concentric squares 34 Strogatz 34 faceted crystal 34 infinitesimally tiny 34 viewport 34 twirly 34 Botticelli Birth 34 Comet Holmes 34 ellipsoid 34 type Ia supernova 34 neck craning 34 leafless tree 34 quantum superposition 34 fermionic condensate 34 nanoantenna 34 haptic interface 34 geodesic 34 phallic symbol 34 myth 34 gourd birdhouse 34 thermochemical nanolithography 34 camera viewfinder 34 irregular shapes 34 emergency landing Belevan 34 lensless 34 inanimate object 34 interpenetrating 34 theorems 34 unpracticed eye 34 orb weaver 34 erector set 34 ornithopter 34 hormesis 34 chromatic aberration 34 hexagram 34 WiiMote 34 superlens 34 squares rectangles 34 contraption 34 viral McSween 34 funnel shaped 34 pebbling 34 photograms 34 flickering glow 34 lenses magnify 34 quantum tunneling 34 chevron pattern 34 sandstone monoliths 34 honeycomb pattern 34 periodic dimming 34 antireflective 34 diffraction pattern 34 holographically 34 jet contrail 34 nonreflective 34 unpolarized 34 triangular shaped 34 unexplainable occurrences 34 sgraffito 34 uniformly spaced 34 polarizing filter 34 miraculousness 34 cuboid 34 cellular automata 34 koru 34 Yarkovsky effect 34 nogo receptor 34 wavefront 34 kaleidoscopically 34 micromirrors 34 wraparound windshield 34 MC Escher painting 34 shapes 34 coherent superposition 34 perpendicular angle 34 Botticelli painting 34 paradox 34 protrusion 34 animatronic puppet 34 ship prow 34 KH #D 34 Hawking Radiation 34 coronal heating 34 spherical geometry 34 Masonic symbols 34 spookfish 34 esthetically appealing 34 Poincaré 34 halo effect 34 tangram 34 dihedral 34 unseeable 34 pinhole 34 subtle undulations 34 spatial dimensions 34 anamoly 34 bilaterally symmetrical 34 scrollwork 34 asymptote 34 reflexivity 34 phosphor coating 34 reflexed 34 antique typewriter 34 ashen gray 34 aV shape 34 Pythagorean theorem 34 anthropomorphic 34 membrane pores 34 dimly visible 34 faraway galaxy 34 Lotte Reiniger 34 parabolic curve 34 tinted spectacles 34 Canvas Curse 34 russet colored rings 34 uncanny 34 taillamp design 34 weblike 34 Newtonian mechanics 34 soundwave 34 ecliptic 34 hedonic adjustments 34 Anchiornis 34 hawk moth 34 surface plasmons 34 anomaly 34 springiness 34 badly shanked punt 34 cirrus clouds 34 Loch Ness Monster 34 curved inward 34 Pear shaped 34 easel painting 34 golden orb 34 comet Tempel Tuttle 34 exhaust plume 34 yawing 33 zigzag pattern 33 van der Waals forces 33 Pythagorean Theorem 33 photomontages 33 wondrousness 33 Plato cave 33 abiogenesis 33 occludes 33 mesmerized 33 unobstructed view 33 brightly illuminated 33 Strobe lights 33 photonic crystals 33 strobing 33 artist Toshio Iwai 33 quasiparticle 33 peripheral vision 33 spherical shapes 33 swooping roofline 33 honeycomb structure 33 Art Deco styling 33 theorem 33 dazzlingly bright 33 papier maché 33 hexagon 33 gyroscopic 33 Nike Swoosh 33 angle 33 diagrid 33 steering wheel tilts 33 rectangular prism 33 Horizontal stripes 33 PS3 Sixaxis controller 33 yardangs 33 boxwood hedge 33 unsolvable puzzle 33 glitter sparkles 33 nanowire transistors 33 inkblots 33 Newtonian physics 33 post hoc ergo 33 Mozart Effect 33 indentations 33 beam splitter 33 elongates 33 arcsecond 33 quadrocopter 33 black andwhite 33 rectangular shaped 33 apocryphal 33 scuff marks 33 Maxwell equations 33 lbws 33 accidently doze 33 counter clockwise 33 centripetal force 33 photomontage 33 swooshy 33 eureka moments 33 dodecahedron 33 nearsightedness myopia 33 legbreak 33 gently curving 33 transluscent 33 crosshatching 33 flesh colored 33 yellowish 33 planar surfaces 33 acoustic hyperlens 33 spatial disorientation 33 biomechanical 33 anaglyph 33 micromachine 33 cumulus cloud 33 flesh toned 33 Chabucos Galow 33 Flying saucer 33 achromatic 33 translucence 33 spherical aberration 33 singularities 33 diagonally 33 circumstellar dust 33 refractors 33 superstrings 33 oddly angled 33 plumb bob 33 quasicrystalline 33 wavy curls 33 Ben Hur proportions 33 Bernoulli principle 33 What bothers Eriacho 33 Rodin Thinker 33 eyepiece viewfinder 33 Einstein theories 33 enlarger 33 soliton 33 mockup 33 La Fornarina 33 Ambient Orb 33 Hungarian Erno Rubik 33 planets comets 33 proprioceptive 33 GQ Lupi 33 craggy granite 33 peacock plumage 33 dimple pattern 33 venus flytrap 33 emu egg 33 curved roofline 33 unfalsifiable 33 accretion disks 33 isosceles 33 mockups 33 photosensor 33 Rube Goldberg contraption 33 unsymmetrical 33 mathematical wizardry 33 rotoscope 33 easily refutable 33 concentric rings 33 artist rendering 33 oblongs 33 cobalt atoms 33 nonlinearities 33 curved surfaces 33 Anaglyph 33 Einstein relativity theory 33 unsightly bulge 33 pleasing symmetry 33 softly glowing 33 beautifully proportioned 33 cantilever 33 translucent acrylic 33 abstract painting 33 relativistic particles 33 parallelograms 33 shimmer 33 backlight bleed 33 Higgs particle 33 convergent evolution 33 diffraction patterns 33 exploding hydrazine 33 comma shaped 33 statistical fluke 33 Schrödinger cat 33 Skin tones 33 pyramidal shape 33 cerulean sky 33 lapis blue 33 backlighted 33 Fomalhaut b 33 inkjet prints 33 bird's nest 33 angular 33 audible beep 33 photosynth 33 dim wittedness 33 Harry Potter invisibility cloak 33 accordion pleated 33 undated handout illustration 33 Rube Goldberg machine 33 implausible 33 Cognitive dissonance 33 octagons 33 Taimina 33 brownish haze 33 retroreflector 33 crenellated 33 augmented reality app 33 yellowish tinge 33 lightwaves 33 inhomogeneity 33 Doppler shift 33 DNA helix 33 gently curved 33 eye catching 33 crustal thickness 33 wake vortices 33 mirror 33 fanciful imaginings 33 photorealism 33 Orwellian dystopia 33 illustration 33 condyles 33 magnetic dipole 33 shininess 33 human chimp speciation 33 cirrus cloud 33 headpiece 33 infrared laser beam 33 curvatures 33 miniature 33 cantilevering 33 paralell 33 beveled edge 33 uncatchable 33 lattice 33 nervous tic 33 manmade 33 sightline 33 crossbedding 33 raincloud 33 gravitational redshift 33 glasslike 33 concavity 33 loupe 33 bosu 33 plywood cutouts 33 gridlike 33 geometry 33 grotesque facial 33 diffraction grating 33 animated GIF 33 dynamical systems 33 asperities 33 scanning backlight 33 Geometric shapes 33 anthropomorphism 33 electric dipole 33 oppositely 33 whirly 33 SpaceWeather.com 33 undraped 33 oversized showerhead 33 sunbursts 33 clouds scud 33 Astronomically speaking 33 ogee 33 Mott insulator 33 lifesize 33 whooshing 33 icosahedral 33 objet d' art 33 conjurer 32 hind wings 32 Sol Lewitt 32 exquisitely sculpted 32 perpetual motion 32 flapping wings 32 trifocals 32 Cartesian coordinates 32 IR emitter 32 Red Rectangle 32 tracery 32 mammalian brains 32 mathematical formalism 32 undulate 32 lithe frame 32 Rubik cubes 32 lenticular lens 32 inhomogeneities 32 attentional blink 32 niftiest 32 protrusions 32 levitates 32 HoloToy 32 nasolabial 32 Vourlidas 32 orgasmatron 32 anaglyphic 32 eerily lifelike 32 spadix 32 abstract compositions 32 anthropomorphic creatures 32 nystagmus 32 electrodynamics 32 yin yang symbol 32 abberation 32 rotate clockwise 32 Sagittal 32 dappled shadows 32 Caravaggios 32 blindspot 32 wow factor 32 snakelike 32 slanty 32 utter absurdity 32 bulbous 32 compass needles 32 painter palette 32 unicycling clown 32 Mobius Strip 32 spheroidal 32 directional arrow 32 vulvas 32 bulge 32 invisibility cloaks 32 plaster statues 32 telepathy clairvoyance 32 tetra drachma coins 32 uncaused 32 winged angel 32 axis perpendicular 32 idealized 32 hourglass 32 gaping mouth 32 levitate 32 rises majestically 32 bionic beak 32 bentwood 32 denseness 32 orangey brown 32 Geminids meteor shower 32 halo 32 insuperable 32 luminous glow 32 solitary slender 32 Telectroscope 32 granite monoliths 32 Irishman Diary 32 Foro Italico gusty winds 32 intricate stonework 32 blazar 32 levitation 32 obscured 32 Bose Einstein condensates 32 eerie 32 rotational axis 32 telepathy 32 Outward appearances 32 dustbin lid 32 teeny tiny lapse 32 illogicality 32 Poincaré conjecture 32 Perseid meteors 32 aerofoil 32 irregularly shaped 32 shorter hemline 32 sculptural reliefs 32 micrograph