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Flying circus of physics

Index S

Tuesday, December 02, 2008


 

Index S

red number --- takes you to an archived story here at this web site, complete with video links and journal citations. Once there, scroll down or use Ctrl-F to search.

blue number --- takes you to a PDF file of support material (video links and journal citations) for the stories published in the book. Once there, scroll down or use Ctrl-F to search.

S

Saccade (vision jump), baseball, 7.9
Sailboat, 2.161
Saint Paul's Cathedral whispering gallery, 3.63
Saint-Sulpice church, meridian line, optics, 6.23
Salt fingers, 2.135

Salt fountains, 2.135

Salt oscillators, 2.134

Saltation (jumping of sand grains in wind, sand ripple formation), 2.110

Salting in ice cream making, 4.41

Salting sidewalks and roads, 4.40

Sambuca, 6.113

Sand
        booming and squeaking, 3.69, 3.69
        cohesion, 2.86

        darkness of wet sand, 6.52
        drinking glass pushed into sand, 2.175
        dunes,  formation and migration, 2.111

        Langmuir circulation, 2.111
        pressure under sand pile (stress dip), 2.140, 2.140
        ripples, 2.110

        sandpiles, 2.106
        self-organizing flow, 2.106
        sparking, 5.29

Sand-bar reflections, 2.132

Sandcastles, 2.86
Sandwich bag inflation, 2.174
Sapphire, star, illusion 6.97

Satellite mirror shinning on ground, 6.81, 6.82
Satellites
    
    air drag speeds up satellite, 1.188
        intelligence satellites,
1.187
        Jack and the beanstalk to space,
1.137

Sauce béarnaise, 5.37

Sauropod dinosaur, living in water because of size, 2.48

Sausage-shadow effect, 6.99

Scallop eye, mirror instead of lens, 7.17
Scanning, laser beams into audience at rock concerts, 6.164
Scanning electron microscope, 1.208
Scarabeid beetles, colors due to interference, 6.115

Scarps, beach, 2.86

Scary physics
      graveyard lights,
6.83
      howling wind, 3.1
      pendulum in the pit, Edgar Allen, how realistic, 1.115
      roller coaster, scariest car,
1.19, 1.19
Scattering, optical 
      airplane window bright streak,  6.105
      beetle colors,
6.95
      blue Moon, 6.50
      blue skin, 6.123
      Christmas light,
6.17
      contrail colors, 6.143
      dark when wet
             hair,
6.52
             sand, 6.52
      earthshine, 6.43, 6.43
      envelope magic trick, 6.86
      eye colors, 6.90
      finely grooved surfaces, 6.108
      gegenschein, 6.149
      ice blink,
6.20
      milk in bright sunlight (speckle), 6.124
      milk in water, 6.111
      mirror, misty or dusty, colored rings, 6.110
      nacreous clouds (mother-of-pearl clouds), 6.144
      opal, colors due to diffraction, 6.95
      optically variable devices, credit card displays, 6.109
      rays of Buddha,
6.15
      red dawn, Australian, 6.5
      shower door optics, 6.88
      smoke color
            campfire, 6.112
            cigarette, 6.153
      speckle (grainy pattern), 6.124
      spider webs, 6.105
      transparent
            frogs,
6.90
            man, 6.90, 6.90
      twilight purple light, 6.145
      window scratches, 6.105
      windshield light streaks, 6.106
6.106
      zodiacal light, 6.149
Scoresby, William, ice lens to start a fire,
6.93
Scorpion, sand, 1.127
, 1.127
Scratches, optics, 6.105

Screen, optics, 6.104

Sculpture, acoustic, 3.86
Searchlight beams
       beam's abrupt end, 6.22
       most powerful, design, 6.80
       rainbow in beam, 6.3
Secondary flow
       olive in swirling martini, 2.25
       river meandering, 2.26
       tea leaves collecting at center of cup, 2.25

Seed, spinning while falling, 2.11, 2.11

Seiches, 2.67, 2.67

Self-cleaning effect, lotus effect, super hydrophobic, 2.93

Self-organizing pattern, 2.159
SEM (scanning electron microscope), examination crystal skull, 1.208
Sempere, Eusebio, acoustic sculpture, 3.86
Seurat, Georges, pointillism art, Sunday Afternoon, 7.11
Shadow
        acoustic, 3.19
        airplane wing, dark bands, 6.100, 6.100
        bands, atmospheric, 6.33
        bright borders around a shadow, 6.99
        caustics, 6.99
        colors of, 6.427.40
        diffraction, 6.151, 6.151
        hiding a shadow, 7.56
        in water, 6.99
              bright borders
              caustics
              sausage-shadow effect
        Mach bands, 7.25
        mountain shadows, always triangular, 6.36
        of hairs,  strange change during motion, 7.57
        on snow, 6.42
        on water, 6.41
        pinspeck camera, 6.102
        Poisson spot, 6.151, 6.151
Shafts across sky, 6.15

Shaking soda or beer, 2.76
Shampoo stream bounce, 2.60, 2.60

Shandy, beer and soft drink, bubble production depends on pouring, 2.76

Shape of sky, perceived, 7.2

Shaver clippings in water, effect of soap, 2.150
Shaving with twin blades, 1.193

Shear-thickening fluids, 2.58

Shear-thinning fluids, 2.58

Sheep, big-horn
        head-to-head collisions, 1.10
        rock climbing,
1.61

Shell sounds, conch, 3.36
Shimmy, optical, 6.32

Ship
        anti-roll device, 1.184
        bergship (iceberg aircraft carrier), 2.160
        canal water level effect, 2.30, 2.30
        collision, 1.263
        dead water (ship cannot escape), 2.35, 2.35
        drawn together, 2.128
        Flettner's ship, 2.145
        odd behavior in certain straits, 2.146
        sailboats, 2.161
        wakes, 2.68
Shock front, optics, 6.1006.1006.101

Shock waves
        aircraft, 3.54
        Apatosaurus dinosaur's tail, 3.59
        brontides, mysterious booms from sky, 3.57
        bullet, 3.54
        bull whip, 3.59
        land speed record, 1.87
        rockets, World War II, V2, blitz, 3.54
        rock file, 3.58
        sneeze and cough, 3.60
        space shuttle Columbia, Los Angeles seismic wave, 3.54
        thunder, 3.56
        train, high speed through tunnel, 3.55
        traffic flow, 1.3
        water (hydraulic jump), 2.29
        Yeager, Chuck, sonic boom, 3.54
Shooting bullet into block, 1.265
Shooting down your own airplane, 2.155

Shorebirds, prey harvesting, 2.83

Shotgun, rainbows, 6.1
Shot put, 1.162, 1.162

Shower curtain flutter, 2.21
         video of me, The Daily Planet show
Shower singing, 3.67

Shower-door optics, 6.88, 6.90

Shrimp sounds, 1.40, 3.50, 3.50

Shrimpoluminescence, 3.50

Side flash, lightning, 5.2

Sidewalk cooking, 4.97
Side-view mirrors, 6.74, 6.74

Siege machines, 1.31

Signac, Paul, 7.25

Silos
        granular flows, 2.107
        honking and quaking, 2.107, 3.38

Simoson, A. J., 1.141
Singing
        resonance of nose, throat, and mouth, 3.4
        soprano, 3.4
        throat singing, 3.6
        shower singing, 3.67
        wine glass shattering, 
3.44, 3.44
Sink, colors in kitchen, 6.125
Sinkholes, 4.96
Siphon, 2.41
        chain, 2.41
Sirens, production of sound, 3.3
Skateboard, 1.82

Skater, ice, 1.95
Skid marks, vehicle, 1.8, 1.9
Skiing 
      accident, 2.7
      avalanche balloon, 2.109
      friction, 4.33
      glasses, yellow, 6.56
      glowing due to charging, 5.14
      jumping, 1.163, 2.7, 2.7
      racing, 2.7, 2.7, 2.8
      speed, 2.8
      turns, 1.101
Skin color change with cold air, 6.123

Skin softness, optics, 6.133

Skipping rocks and golf balls over water, 1.94, 1.94

Skunk cabbage heat production, 4.57

Sky
        Bishop's ring (volcano-induced solar halo), 6.9
        bright and dark shafts, 6.15
        bright instead of dark, 6.4

        colors
              blue daytime sky, 6.5
              blue enhancement at sunset, 6.13
              dark patch and rosy border at sunset, 6.14
              green sky (green thunderstorms), 6.12
              nighttime sky color, 6.5
              overcast sky color, 6.19
              red sunsets and sunrises, 6.5
              solar eclipse color, 6.11
              storm prediction, 6.7
              volcanic coloring, 6.8

        horizon
              brightness, 6.21
              distance to, 6.18
              white horizon, 6.5
        large scale luminous areas, 6.149
        line across distant rain (rain-ice transition), 6.147
        maps in the sky, 6.20
        polarization
              ant navigation, 6.128, 6.128, 7.38
              honeybee navigation, 6.128
              Viking navigation, 6.127
              way to colorful detect sky polarization 6.127
        shape, perceived, 7.2
Sky-ice, maps in the sky (ice-blink), 6.20, 6.20
Skywalk collapse, 1.47

Slam freezing, 4.24
Sling (weapon), 1.28

Slingshot, 4.94

Slinky, 1.65, 1.65, 1.249
Sloshing, 2.67, 2.67
Smith, Rick, Jr., card throwing, 2.10
Smoke front, tunnel fire 4.95
Smoke
       cigarette smoke color shift, 6.153
       rings, 2.40
       plume shapes and behaviors, 4.75
       signals, 4.76

Snake blood pressure, 2.47

Snake,
       gliding, 2.12
       infrared detection by, 4.1
       
slithering, 1.233
       wall climbing by, 1.243
Snap, crackle, and pop of cereal, 3.53, 3.53

Snapping shrimp sounds, 3.50, 3.50

Sneezing, sound, 3.60

Snoring, 3.7

Snorkeling
        dangers, 2.53, 2.53
        elephants, 2.53, 2.53
Snow
        avalanches, 2.114, 4.38
        blindness, 6.55
        bone goggles, 6.56
        brightness, 6.21

        colors, 6.53, 6.54

        fences, 2.113

        firsnspiegel (sparkles), 6.54
        hearing the snow, 3.71
        melt patterns, 4.39
        rollers, 4.37, 4.37
        sheet, 4.18        
        ski glasses, yellow, 6.56
        sounds of walking on snow, 3.72

        sparking, 5.29

        waves, 1.128

        whiteout, 6.55
Snowball making, 4.34

Snowblindness, 6.55

Snowflake formation and symmetries, 4.32

Snowrollers, 4.37, 4.37
Soap bubbles and films
         black film, 6.114
         bubble formation, 2.77
         colors, 6.114
         glycerin, role in stabilizing, 2.77
         inflation, 4.70
         Ostwald ripening, 4.70
         Plateau border, 2.77
         shapes, 2.122
         two connecting bubbles, 4.70
Soap effect on surface tension (shaver cuttings on water), 2.150, 2.150
Soccer, see Football
Soda
        
freezing, 4.24
         shaking, 2.76, 2.76
         sounds, 3.84 
Solar flare
         astronaut visual effects, 7.46
         sun's appearance, 4.106
 
Solar images,
6.103
Solar towers, 4.83

Solitary waves (solitons), 2.31

Solstice, light beam penetrating Newgrange, 6.23, 6.23
Solutal instability, 2.89
Sonic booms
         aircraft, 3.54, 3.54
         Apatosaurus dinosaur tail whip, 3.59
         brontide, mysterious sounds from the sky, 3.57
         bullet, 3.54
         bullwhip, 3.59
         land-speed record, 1.87
         rocket launch, 3.54
         sneeze and cough, 3.59
         space shuttle Challenger, Los Angeles, seismic wave, 3.54
         thunder, 3.56
         train at high speed through tunnel, 3.55
         V2 rockets, World War II blitz, 3.54
         volcano eruption, 3.54
         Yeager, Chuck, 3.54
Soprano singing, 3.4

Sound emitted by ears, 3.28
Sound speed
       determining depth of deep hole, 1.255
       determining depth of sunken submarine after explosion, 1.126
       hot chocolate effect, 3.40
       long distance hopping, 3.18
Soup reversal after stirring, 2.59

Space 
       astronaut
              maneuvering, 1.97
              vacuum exposure, 4.54.5
              visual sensations from cosmic rays, 7.46
       air drag speeds up satellite, 1.188
       Earth to Venus story, 1.169
       electrostatics, 5.55
       gegenschein, 6.149
       gravitational slingshot, 1.191
       intelligence satellite orbits, 1.187
       Martian rover, tumbleweed design, 2.186
       mirror in orbit, to shine on ground, 6.82
       Moon trip figure eight orbit, 1.189
       rocket stages, 1.168
       walking, 4.5, 4.5
       zodiacal light (interplanetary dust), 6.149

Spaghetti breaking, 1.220
Spaghetti effect (slurping and slinging), 1.122, 1.122
       video of me, The Daily Planet show

Sparking
       adhesive tape, 5.175.17
       aerosol cans, 5.12
       airplane, 5.29
       bird poop and flashover on power lines, 2.98
       car and fueling, 5.9, 5.9
       car-to-car, 5.10
       Dust Bowl, 5.29
       gurney fire,, hospital, 5.16, 5.16
       haboob, dust storm, 5.29
       Hindenburg disaster, 5.15
       Martian dust devils, 5.29
       playground slide, 5.8, 5.8
       powder, dust, snow, 5.29
       skiing, 5.14
       St. Elmo's fire, 5.21, 5.21, 5.29
       surgery, 5.8, 5.8
       sweater, 5.85.8
       tornado, 2.37, 5.29
       volcano, 5.30, 5.30
Speaking, 3.4, 3.5

Speckle patterns, optical, 6.124
Sphere of Death,  motorcycle stunt, 1.211
Spiders
      beading on web threads, fluid instability, 2.81
      web oscillations and location of prey, 1.123
Spin test, 1.88

Spiny lobsters, sounds, 3.12

Spitballs, 1.244
Splashing
       granular, 2.147
       liquid, 2.75
       sounds
              murmuring brook, 3.45
              rain noise, 3.45
              wettability of object hitting water, 3.87
Spoons, hanging on your face, 1.57, 1.57
      video of me, The Tonight Show
Sports
      aikido, 1.55, 1.111
      archery, 1.131
      baseball,
               aerodynamics, 2.16
               ball-bat collision, 1.23
               catching ball dropped from high point, 1.22
               fly ball catching, 1.21
               humidifying, 1.23
               seeing the ball in flight from the pitcher, 7.9
      basketball,
               free throw, 1.33, 1.33
               hang time, 1.35
               shots, 1.331.33, 1.34
               spin effect, 1.228
      billiard shots, 1.74
      bobsled, 2.109
      bowling, 1.73
      boxing, 1.461.46
      bull riding, 1.92
      camel jumping, 1.38
      cheerleader horn, 3.21
      cricket, aerodynamics and bowling, 2.17
      curling,1.90
      deadlift, 1.41, 1.41
      discus flight, 2.126
      diving, 1.97, 1.134
      field hockey, 1.78
      fishing, pulling in a fish, 1.159
      flycasting, 1.135
      football (American)
               cheerleader horn, diffraction of sound waves, 3.21
               field goal kick, controversial, 1.77
               spin on long pass, 1.112
               wave, stadium, 1.129
      football (rest of the world)
               banana kick, curved flight, 2.14, 2.14
               Clarke, Arthur C., referee death by mirrors, 6.82
               goal, bounce back, controversial, 1.78
               header and brain damage, 1.241
               Roanaldinho fake video, 1.78
               throw-in, angle, 1.162
               throw-in, longest, 1.228
               wave, stadium, 1.129
      Fosbury flop, 1.38, 1.38
      golf
               aerodynamics of ball, 2.15, 2.15
               dimples increases flight, 2.15, 2.15
               general, 1.36 
               "golfer's dilemma" (ball hopping out of cup), 1.361.36
               putt-putt (miniature) golf, 1.75
               skipping ball over water, 1.94
               sound in putting, 3.83
      hammer throw, 1.62
      high jump, 1.38
      horseshoe throwing, 1.83
      ice skating, 4.34
      javelin, 2.127     
      judo, 1.55, 1.111
               video, Newton's Apple show
               video, calculations
      karate, 1.45, 1.45 
               video, calculations
      kayak roll, 1.89
      long jump, 1.381.38
      pole vault, 1.26
      pool shots, 1.74
      race car, 2.1
      racquetball
               zing echo, 3.77
               Z shot, 1.77
      rock climbing, 1.243, 1.60
      roller derby, 1.231
               video, calculations
      rugby, 1.24
      sail boats, 2.161
      shot put, 1.162
      skateboard, 1.82
      skiing
               accident, 2.7
               avalanche balloon, 2.109, 2.109
               downhill race, 1.163
               friction, 4.33
               glasses, yellow, 6.56
               glowing due to charging, 5.14
               jump, 2.7, 2.7, 2.8
               speed, 2.8
               turning, 1.101
      snorkeling, 2.53
      shot put, 1.162, 1.162
      springboard diving, 1.97, 1.134
      sprint tracks, 1.16
      surfing, 2.692.69
      swords, 1.198
      tae-kwon-do punch, 1.451.45
              video, calculatons
      tennis, 1.79, 2.13
      weight lifting, 1.41, 1.41
      wet towel popping in the locker room, 3.59
      wrestling, 1.111
Spray sheath, waterspouts, 2.38
Spring equinox and eggs, 1.138, 1.138
Spring novelty, 1.148
Springboard diving, 1.97, 1.134

Sprint tracks, 1.16

Sprites, 5.6, 5.6
       video, calculations
Squeaking sand, 3.69, 3.69
Squid,
bacteria illuminating its shadow, 6.90

Squirrels, and snakes, 4.1
St. Elmo’s fire, 5.4, 5.29, 5.21

Stacking
      blocks, 1.66, 1.66
      coins, 1.239 
      dominos, 1.68
      Lego blocks, 1.66
      rods, circus, 1.238
      stones and bowling balls, 1.201
Stack plumes, 4.75

Stadium waves, moving through stadium audience, 1.129

Stairs, echoes from, 3.65
Stairway, impossible, 1.258

Stalactites, 2.84
Standing stability, standing on moving vehicle, 1.199
Stapp, John, effect of large accelerations, 1.111.11
Star sapphire illusion, 6.97

Star spikes, perceived, 7.6

Stargazer’s eye sweep, 7.36

Stars
       radial lines (perceived spikes), 7.6
       seen in shafts, 7.35

       twinkling, 6.32
      van Gogh, Starry Night,  rings around, 7.6

Stealth aircraft, 6.117

Steam devils, vortexes, 2.39

Stefansson, Vilhjalmur, cause of whiteouts, 6.55
Stepped leader, lightning, 5.1

Stethoscopes, 3.32

Stick-and-slip effects
       finger nails on chalkboard, 3.42
             video, sound production
       hinge squeaking, 3.42
       violin bowing, 3.34
       wineglass, rubbing rim, 3.43, 3.43
Stirling flocks, 2.166
Stonehenge construction, 1.63

Stones
       migration
              across desert, 1.58
              up through ground, freeze-thaw cycle, 4.29
       skipping across water, 1.94, 1.94
       stacking and balancing, 1.201
Storage tank collapse,  crushed during cooling, 4.54, 4.54

St. Paul's Cathedral whispering gallery, 3.63
Stratosphere, refraction of sound, 3.18
Straw lifting a glass, 1.234
Strait
of Gibraltar flow, 2.146

Strait of Messina flow, 2.146

Strait of Sicily flow, 2.146

Stream deflection, electrical, 5.57
Street and road
        bumps, 1.185, 1.185
        corrugated road, 1.185, 1.185
        illumination by streetlights, 6.78

        music from road noise, 3.86
        streetlight turn-on illusion, 7.24

        wet road darkness, 6.52
Stress dip below sandpile, 2.140, 2.140
Stroboscope effect with humming, 7.8

Stroboscope induced visual patterns, 7.7

Structural colors, biological, 6.95, 6.115, 6.158
Stunts
        bed of nails, lying on, 1.56, 1.56
               video of me, The Tonight Show
        boiling water ordeal, 4.88
        Cannonball Richards, cannonball shot into stomach, 1.46
        car and train surfing, 1.199
        car jumps,  1.81
        cards as weapons, 2.10
        catching a melon with your face (fake video), 2.169
        catching arrows, 7.9
        chair balancing on a cliff, 1.239
        climbing stairs on your head, 1.254
        corn starch, walking across a slurry of, 2.58
        domino amplifier, 1.681.68
        driving upside down, 2.12.1
        eggs, standing on end, 1.138, 1.138
        escalator torques, 1.257
        falls over Niagara Falls, 1.195
        flying in a lawn chair, 2.56, 2.56
        golf ball skipping over water, 1.94
        hanging a bottle on the wall, 1.221
        hanging spoons and bottle caps on your face, 1.57, 1.57
        high dive into shallow water, 1.49
        house hopping with helium balloons, 2.56, 2.56
        hula-hoop with heavy truck tire, 1.84
        jumping out of a beach (fake video), 1.235
        Knight Rider, car into truck, 1.226
        lead, fingers in molten lead, 4.6, 4.6
              video of me, The Tonight Show
        Leidenfrost effects (molten lead and liquid nitrogen), 4.6, 4.6
        liquid mountaineering (fake video), 2.169
        liquid nitrogen, 4.6, 4.6
        loop-the-loop with cars, bikes, skateboards, and running, 1.270
        motorcycle Ball of Death, 1.211
        motorcycle jump, Robbie Maddison's upward, 1.81
        motorcycle long jump, 1.81
        pulling train with teeth, 1.1651.165
        quicksand, 2.102, 2.102
              video of me, Newton's Apple show
        stacking bowling balls, 1.201
        sucking liquid up very long straws, 2.41
        vortex cannon, large, 2.40
        walking on hot coals, 4.8, 4.9
        yo-yos, unusual and gigantic, 1.85

Styrofoam cups, moving with electrostatics, 5.8
Submarines

        escape from, 2.54

        listening to, 3.20

        sinking of, 1.126
Submerged car, escape from, 2.189
Suction
        from an airplane, through window, 2.158
        up a straw, record, 2.41
Sugar, electrically charging, 5.53
Sugar dust explosion, 5.11
Suitcase with flywheel, gyroscopic prank, 1.105

Sullenberger, Captain, crash landing commercial jet on Hudson River, 1.218
Sun
        See also Sunset (below)
        beams, 6.15
        Bishop's ring (volcanic induced ring), 6.9
        corona (colored bands), 6.47
        distortions, 6.25
        halos, 6.34, 6.35
        pillar, 6.35
        shadow bands, 6.33
        sun dogs, 6.34

Sunglasses
         polarizing
               printed page glare, 6.160
               sky light, 6.126
               windshield spots, 6.129
         UV light transmission, 7.41
         yellow ski glasses, 6.56

Sunset
         abrupt darkness, 6.142
         colors, 6.5
         dark patch, 6.14
         green flash, 6.24
         overhead blue enhancement, 6.13
         rosy border, 6.14
         sun distortions, 6.25
         twilight purple light, 6.145
         volcano coloring the sky, 6.8
Super Ball tricks, 1.43, 1.76

Supercooling water
        plumbing pipe burst, 4.25
        procedure, 4.10

Superheating water in microwave oven, 4.48

Superhydrophobic, 3.77
Superman x-ray vision, 7.48

Supersonic
        aircraft, 3.54, 3.54
        bullet, 3.54
        bullwhip, 3.59
        explosion, 3.54
        land-speed record, 1.87
        rocket launch, 3.54
        space shuttle Columbia, Los Angeles, seismic wave, 3.54
        V2 rockets, World War II blitz, 3.54
        volcano eruption, 3.54
        Yeager, Chuck, 3.54
Surface tension 
         antibubbles, 2.124
         aphids and liquid marbles, 2.94
         beading on saliva threads and spider threads, 2.81
         beer foams, 2.77
         beer spots on bottle caps, 2.190
         bird dropping (poop) on car windshield, 2.98
         Boyles's perpetual motion device, 2.195
         breath figures on mirror, 2.92
         bubbles in beer, soda, and champagne, 2.76, 2.76
         bubble bursting, 2.78
         camphor boats, 2.150
         catapulting mushroom spores, 2.99
         Cheerios effect (attraction of floating cereal grains), 2.85, 2.85
                video, homemade
         collecting pepper grains and shaver cuttings, 2.150, 2.150
         condensation on eyeglasses, 4.66
         dripping, 2.121
         drops floating on water, 2.74, 2.74
         drops from an empty bottle, pub trick, 2.167
         ducks stay dry, 2.97
         evaporating wine, 2.193
         foams, 2.77
         foggy mirrors, 4.65
         free-standing water (fake video), 2.181
         gushing in shaken beer or soda, 2.76, 2.76
         instability, 2.89
         inverted can of Red Bull, 2.120
         inverted glass of water, 2.120, 2.120
         liquid mountaineering (fake video), 2.169
         liquid origami, 2.170
         liquid origami, 2.170
         lotus effect, 2.93
         mushroom catapult, 2.99
         paint brushes, 2.95
         paper straw stretch and crawl, pub trick, 2.171
         parchment paper effect, 2.170
         patterns in draining honey, yogert, 2.159
         pinned surface films, 2.84
         pins in water glass, 2.192
         sandcastles, 2.86
         scarps, beach, 2.86
         self-cleaning surface, 2.93
         shorebirds harvesting prey, 2.83
         soap bubble shapes, 2.122
         spider webs, 2.81
         teapot effect (water stream doubling back under spout), 2.51
         tears of strong wine, 2.88
         thin stream meandering on tilted surface, 2.149
         Tia Maria wormy action, 2.892.89
         toothpick design, pub trick, 2.173
         water striders, 2.80, 2.85, 2.85, 2.169, 6.89
         water bells, sheets, chains, 2.101
         waves on falling water stream, 2.100
         wet hair, 2.51
         whiskey glass, 2.157
         wine evaporation pattern, 2.193
Surface waves, whispering galleries, 3.63
Surf skimmers, 2.130

Surfing
          car and train, 1.199
          ocean waves, 2.69, 2.69
Surge 
          controlled dam breach, 2.182
          exploding geyser from rain runoff shaft, 2.163
Surgery, electrical effects
          bacteria, electrically attacted, 5.31, 5.31
          current crowding, 5.25
          electrosurgery, 5.25
          fires and explosions, 5.26
          gurney fire, 5.16, 5.16
          sparking into patient, 5.8, 5.8

Sway, building, 1.133, 1.133

Swimming and swimming pool
      ascent after diving, 2.52
      dead water, 2.35
      hearing underwater, 3.26
      sauropods, 2.48
      snorkeling
           dangers, 2.53, 2.53
           elephants, 2.53, 2.53
           people, 2.53, 2.53
       shadows with bright borders, 6.99
       syrup, swimming in, 2.19
       underwater vision, 7.18
Swings 
       incense swing, 1.114
1.114
       pendulum in the pit, 1.115
       pumping, 1.113
Sword fight, 1.198
Sword swallowing, 6.87

Syracuse, Archimedes defense with mirrors, 6.81

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