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Contents Part I | Introduction 1 1. ElementsofOurHybridExistence 3 1.1 WhyStudyPhysicality 3 1.2 ComponentsofthePhysicalWorld 4 1.3 KindsofThings:FromStonestoSilicon 6 1.4 TheNaturalOrder 7 1.4.1 Theartificial—worksofourhands 9 1.5 ComingTogether 12 1.5.1 Makingthingsusable—Human– ComputerInteraction 14 1.5.2 Ofdesigners,computer-embedded devicesandphysicality 16 1.6 DifferentWaystoTouch 22 1.7 LearningaboutPhysicality 26 2. What’sHappeningNow 31 2.1 ComputinginTheWorld 31 2.1.1 Ubiquitouscomputing(ubicomp) 31 2.1.2 InternetofThings 32 2.1.3 Invisibleintelligence 33 2.1.4 Sensors,surveillance,andsmart cities 34 2.1.5 Nanotechnologyandsmartdust 35 2.2 TechnologyatOurFingertips 37 2.2.1 Tangibleuserinterfaces(TUI) 37 2.2.2 Hapticsandsmartmaterials 37 2.3 UpCloseandPersonal 39 2.3.1 Mobileandpersonaldevices 39 2.3.2 Wearablecomputingandfashion 40 2.3.3 Physiologicalcomputing 41 vi Contents 2.4 BlendingDigitalandPhysicalWorlds 42 2.4.1 Simulatedreality 42 2.4.2 Virtualreality 43 2.4.3 Augmentedrealityandmixedreality 44 2.5 RobotsandAutomation 45 2.5.1 Human–robotinteraction 45 2.5.2 Notbeingthere—telepresence robots 46 2.5.3 Robotsyoulivein 49 2.6 DigitalFabricationandDIYElectronics 49 2.6.1 Digitizedindustry 49 2.6.2 3Dprintinganddigitalfabrication 51 2.6.3 DIYelectronicsandhacking 51 2.6.4 Makerculture,fromcodingto crafting 53 Part II | Human Body and Mind 55 3. Body 57 3.1 BodyasaPhysicalThing 57 3.2 SizeandSpeed 59 3.3 TheNetworkedBody 61 3.4 AdaptingITtotheBody 63 3.5 TheBodyasInterface 65 3.6 AsCarrierofIT—TheRegularCyborg 68 4. Mind 72 4.1 MindasaPhysicalThing 72 4.2 MemoryandTime 74 4.3 JustNumbers 76 4.4 MultipleIntelligences 77 4.5 TheBrainasInterface 83 4.6 CreativityandPhysicality 85 Contents vii 5. BodyandMind 89 5.1 WholeBeings 89 5.2 SensingOurselves 89 5.3 TheBodyShapestheMind—Posture andEmotion 92 5.4 CyberneticsoftheBody 94 5.5 TheAdaptedBody 99 5.6 PlansandAction 103 5.7 TheEmbodiedMind 108 6. Social,Organizational,andCultural 112 6.1 PersonalContact 112 6.2 Intimacy 114 6.3 MediationandSharing 116 6.4 Socio-organizationalChurch–TuringHypothesis 120 6.5 CultureandCommunityofPractice 123 6.6 Political 125 Part III | Objects and Things 129 7. PhysicalityofThings 131 7.1 PhysicsandNaïvePhysics 131 7.2 RulesofPhysicalThings 133 7.3 ContinuityinTimeandSpace 135 7.4 Conservation of Number and PreservationofForm 135 7.5 EmotionandNostalgia 137 7.6 AllOurSenses 139 8. InteractingwithPhysicalObjects 145 8.1 AffordanceRevisited—WhatWeCanDo andWhatWeThinkWeCanDo 145 8.2 AffordancesoftheArtificial 146 8.3 AdaptedforNewActions 148 viii Contents 8.4 ActionasInvestigation 153 8.5 LettingtheWorldHelp 156 9. HybridDevices 162 9.1 Abstraction—Software as if HardwareDoesn’tMatter 162 9.2 TheLimitsofHardwareAbstraction 165 9.3 Specialization—Computer-embeddedDevices 169 9.4 WhatDoesItDo? 170 9.5 Mapping 172 9.6 Feedback 180 9.7 TheDeviceUnplugged 185 9.7.1 Exposedstate 186 9.7.2 Hiddenstate 188 9.7.3 Tangibletransitionsandtension states 194 9.7.4 Naturalinverse 197 10. Tools,Equipment,andMachines 202 10.1 ToolsandtheDevelopmentofHumankind 202 10.2 Affordance,Understanding,andCulture 204 10.3 Heidegger,Hammers,andBreakdown 207 10.4 FromPhilosophytoDesign:DesigningforFailure 212 10.5 BreakdownandReflection 216 Part IV | Space 223 11. PhysicalityofSpace 225 11.1 Void—MatrixorMyth 225 11.2 FromNothing—Points,Lines,andCircles 227 11.3 Flatness—TheShapeofSpace 230 11.4 Uniformity—ContinuityandFracture 233 11.5 Scale—SizeMatters 236 11.6 RelativityandLocality 240 Contents ix 11.7 TimeToo 244 11.8 TerraFirma 247 11.9 PatternsintheLandscape 249 12. ComprehensionofSpace 252 12.1 EarlyUnderstandingofSpace 253 12.2 ChildhoodandLargerSpaces 253 12.3 FeelingandActinginSpace 255 12.4 SeeingSpace—3DVision 257 12.5 MentalSpace 259 12.6 Maps,Sketches,andCartography 261 12.7 PathsandNarrative 264 12.8 TheLanguageofSpace 267 12.9 CultureandTime/Space 268 12.10 VirtualSpace 270 12.11 PlaceandNon-place 272 12.12 JourneyorDestination 274 13. TheBuiltEnvironment 279 13.1 Introduction 279 13.2 Physical–DigitalLayers 279 13.3 TemporalLayering 285 13.4 Digital–PhysicalPlaygrounds 288 13.5 TheConquestofSpace 288 13.6 ComputerMediation 290 13.7 DigitalCulture 290 13.8 TheInternetofThings 295 13.9 HumanTechnology 300 14. DigitalAugmentationofSpace 301 14.1 ControloverSpace 301 14.2 MobilePhonesandMobileApplications 303 14.3 PervasiveandPublicDisplays 306 14.4 InteractingwithPublicDisplays 308