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Ernst Mach
Mach didn’t discover relativity — he photographed shock waves and mapped how your inner ear keeps you upright.
Acoustics
Why the room is an instrument.
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- 33 min
- in total
Abstraction 25Absurdism 2Acoustics 3Acting 1Adaptation 5Adolescence 3Age of exploration 6Ageing 2Agriculture 5Algorithms 15Ambition 13Ancient Egypt 5Ancient Greece 13Ancient Rome 20Animals 8Anthropology 4Apartheid 4Architecture 2Archives 4Art Deco 1Artificial intelligence 8Astronomy 41Automation 2Avant-garde 4Aviation 4Banking 2Behavioural economics 4Berlin 2Biodiversity 1Biography 4Birds 2Black holes 3Britain 59Buddhism 5Byzantium 3California 2Capitalism 3Celebrity 1Censorship 1Chemistry 27Childhood 2China 28Christianity 19Cinematography 5Cities 12Class 25Climate change 19Club culture 2Cognitive bias 4Colonialism 52Colour 1Comedy 6Community 1Complexity 5Computing 18Consciousness 4Corruption 2Cosmology 15Cover versions 1Craft 3Crate digging 1Crime 27Cryptography 2Cuba 2Cybersecurity 1Decision-making 5Decolonisation 17Deep time 11Democracy 13Detroit 1Dinosaurs 6Directing 1Disasters 31Disease 26DJ culture 1Dreams 1Dystopia 11East Africa 11Ecology 12Economics 1Editing 2Education 2Egypt 6Electric vehicles 4Empire 67Endurance 1Energy 4Engineering 20Entropy 3Epidemics 5Ethics 3Evolution 36Existentialism 11Exploration 16Extinction 3Family 74Fascism 11Fear 16Feminism 5Fermentation 1Film music 8France 41Free will 1Freedom 2French literature 4Friendship 1Gender 14Generations 2Genetics 23Geology 5Germany 32Gothic 8Greece 2Grief 18Habits 1Hardware 1Hinduism 3Human history 8Human nature 5Identity 66Improvisation 17India 15Indonesia 5Information 2Infrastructure 1Insects 1Intelligence 1Internet culture 1Invention 15Iran 4Islam 25Israel 6Italy 14Jamaica 3Japan 36Judaism 2Justice 20Korea 3Law 11Learning 3Literary criticism 2London 10Loneliness 26Los Angeles 11Love 24Machine learning 1Marxism 9Masculinity 14Materials 4Mathematics 38Meaning 1Medicine 27Memory 30Mesopotamia 1Mexico 6Migration 19Minimalism 2Modernism 4Money 12Mortality 22Motivation 1Museums 1Mythology 5Nationalism 22Neuroscience 5New York 20Nigeria 2Noise 1Nostalgia 13Nuclear 12Oceans 3Palaeontology 19Paris 6Partition 3Patents 2Perception 1Peru 5Philosophy 1Photography 1Physics 73Plants 4Poland 4Portraiture 1Portugal 8Power 62Prehistory 6Preservation 2Probability 3Programming 1Propaganda 8Protest 14Psychology 28Publishing 1Punishment 2Quantum mechanics 23Race 10Radio 3Railways 1Realism 2Record labels 3Recording 9Relativity 15Religion 36Restoration 1Revolution 45Risk 2Ritual 1Romance 2Russia 24Sampling 12Satire 7Scientific method 99Screenwriting 1Semiconductors 1Sexuality 8Ships 5Silence 6Slavery 13Social media 1Socialism 4Songwriting 11Sound design 1Sound systems 3South Africa 8Space exploration 12Spain 12Special effects 10Startups 1Statistics 3Stoicism 2Storytelling 28Strategy 1Studio craft 23Subcultures 2Surrealism 9Surveillance 2Synthesis 12Thailand 1The American South 2The Balkans 5The brain 2The Caribbean 3The civil rights movement 6The Cold War 28The eighties 3The Enlightenment 18The First World War 9The Gilded Age 1The Great Depression 2The Holocaust 5The Industrial Revolution 1The interwar years 2The Middle Ages 16The Moon 1The music business 7The Netherlands 1The nineties 4The Renaissance 10The Russian Revolution 1The Second World War 27The seventies 14The sixties 7The space race 2The United States 9The Victorian era 2Therapy 3Tokyo 2Trade 29Tragedy 7Trauma 10Turkey 5Vietnam 2Virtual reality 2War 126Weather 2West Africa 11Worldbuilding 9
science.briefs Science
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Jing Fang
A Han dynasty mathematician calculated musical temperaments to 0.0145-cent precision — and declared the Moon a mirror centuries before Europe.
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