318 topics · 5803 questions · 1723 sources

Knowledge Graph

Every almanac entry and research finding answers a handful of questions, and every question touches a few subjects. Those links form a hypergraph — each subject below gathers the questions that lead into it. Follow one to see what it answers and where it connects.

Infectious Disease 387 Nobel Literature Laureates 335 Condensed Matter Physics 230 Algorithms and Data Structures 173 History of Science and Scientists 152 Human Behavioral Quirks 149 Physical Chemistry 138 Animal Behavior and Ethology 131 Atomic Structure 128 History of Computing 113 Aerospace Engineering 111 Radioactivity and Radioactive Decay 106 Drug Discovery and Pharmacology 98 Nobel Prize History 94 Planetary Science 94 Immunology 91 Quantum Mechanics 86 Mars Exploration 83 Cell Biology 81 Authoritarianism and Political Dissent 80 Inventions and Gadgets 78 World Literature by Region 78 Neuron Physiology and Signaling 77 Lunar Science and Exploration 75 Isotopes and Isotope Techniques 72 Outer Planets and Moons Exploration 70 Quarks and the Quark Model 70 Artificial Intelligence 69 Everyday and Recreational Physics 69 Financial and Economic Crises 67 Miscellaneous History and Culture 66 Nanostructures and Nanomaterials 66 History of Medicine 65 Human Spaceflight 65 Fluid Dynamics 63 Instructional Design 63 Endocrinology and Hormones 62 Asteroids, Comets, and Small Bodies 61 Plant Biology 61 Cognitive Bias and Judgment 60 Diplomatic History 60 Nuclear Fission 60 Particle Accelerators and Detectors 60 Semiconductor Physics and Devices 60 Hoaxes and Pseudoscience 59 Macroeconomics 59 Nobel Literature Prize History 58 Food Science and Culinary Curiosities 57 Stellar Astrophysics 56 Nobel Science Prize History 55 Vitamins and Nutrition Science 55 Archaeology and Paleontology 54 Literary Movements and Style 54 X-Ray Crystallography 54 Metabolism 53 Nobel Peace Prize History 53 Spectroscopy 53 Venus Exploration 53 World War II 53 Lasers and Laser Physics 52 Peace Movements and Pacifism 52 Accidents and Disasters 50 Enzymes and Enzymology 49 Human Rights Advocacy 48 Operating Systems and Software 48 Radio and Broadcasting History 48 Microeconomics 47 Protein Structure 47 DNA Structure and Discovery 44 Humanitarian Organizations 44 Big Bang Theory 43 Climate and Atmospheric Science 43 Internet and Web History 43 Literary Criticism and Theory 42 Neuroscience 42 Nuclear Disarmament and Arms Control 42 Radar Technology 42 General Relativity 41 Astronomical Instruments and Observatories 40 Gene Regulation and Expression 40 General Physiology 39 Optics and Photonics 39 Organic Synthesis 39 Programming Languages 39 Cognitive Science 37 Conflict Mediation and Peace Accords 37 Democracy Movements 37 Nuclear Physics 37 Penicillin 37 RNA Biology 37 Space Race 37 Colloids and Soft Matter 36 Geology and Earth Science 36 Psychology of Behavior and Perception 36 Thermodynamics 36 Organ Transplantation 35 Particle Physics 35 Polymer Chemistry 35 Protein Folding 35 United Nations 35 Biochemistry 34 Civil Wars and Regional Conflicts 34 DNA Repair 34 Developmental Biology 34 Distributed and Database Systems 34 Chemical Bonding and Molecular Structure 33 History of Physics 33 Human Evolution and Paleoanthropology 33 Organic Chemistry 33 Public Health 33 Radio Astronomy 33 Standard Model of Particle Physics 33 Development Economics 32 Evolutionary Biology 32 Genetic Engineering and Recombinant DNA 32 Periodic Table and Element Discovery 32 Telecommunications History 32 Chaos and Complex Systems 31 Classical Genetics 31 Computational Complexity Theory 31 Dwarf Planets and Kuiper Belt 31 Galaxies and Large-Scale Structure 31 Occupational Health and Safety 31 Virology 31 DNA Sequencing 30 League of Nations 30 Manhattan Project 30 Materials Science and Engineering 30 Sensory Perception 30 Stem Cells and Reprogramming 30 Vaccines and Immunization 30 Cancer Biology 29 Cosmic Microwave Background 29 Cryptography 29 Medical Imaging 29 Algebraic Geometry 28 Antimatter 28 Cell Signaling 28 Cold War History 28 Exoplanets 28 Model Organisms 28 Molecular Biology 28 Pandemics and Epidemic Response 28 Superconductivity 28 Electron Microscopy 27 Group Theory and Abstract Algebra 27 Political Leaders and Biography 27 Science, Ethics, and Society 27 Antibiotics 26 Developmental and Cognitive Psychology 26 Econometrics 26 Linguistics 26 Reproductive Medicine 26 Soviet History 26 Blood Typing and Transfusion 25 Entomology and Invertebrate Biology 25 Ig Nobel Prize 25 Insulin and Diabetes Treatment 25 Microbiology 25 Quantum Electrodynamics 25 Sociology and Social Science 25 Space Telescopes 25 Toxicology 25 Behavioral Economics 24 Cosmology 24 Cryogenics and Low-Temperature Physics 24 Inorganic Chemistry 24 Nuclear Magnetic Resonance 24 Nuclear Weapons History 24 Space Shuttle Program 24 Biomedical Engineering 23 Neutrino Physics 23 Topology 23 Commercial Spaceflight 22 Green and Environmental Chemistry 22 Learning Science 22 Machine Learning 22 Spaced Repetition 22 Special Relativity 22 The Novel and Fiction 22 X-Rays in Medicine 22 Cardiology and Cardiac Medicine 21 Composite Materials 21 Genomics and Comparative Genomics 21 Gravitational Waves 21 HIV/AIDS 21 Mechanism Design and Auction Theory 21 World War I 21 Additive Manufacturing 20 Astrobiology and Search for Life 20 Computer Architecture and Hardware 20 Famous Conjectures and Proofs 20 Mathematical Analysis 20 Memory and Retention 20 Acoustics and Sound 19 Higgs Boson and Mechanism 19 Malaria 19 Monetary Policy and Central Banking 19 Neurodegenerative Disease 19 Number Theory 19 Religion and Culture 19 Scientific Priority and Credit Disputes 19 Game Theory 18 Human Genome Project 18 Nuclear Fusion 18 Photoelectric Effect 18 Supernovae 18 Targeted Cancer Therapy 18 Energy Technology 17 Labor Economics 17 Structural Color 17 Welfare Economics and Social Choice 17 Cosmic Rays 16 Philosophy 16 Psychoanalysis and Philosophy of Mind 16 Quantum Computing 16 Wave-Particle Duality 16 Black Holes 15 CRISPR and Gene Editing 15 Corporate Finance and Accounting 15 Financial Economics 15 Morphogenesis 15 Quantum Optics 15 Anesthesia and Surgical Technique 14 Apartheid and South Africa 14 Decolonization and Independence Movements 14 Economic History 14 Gastroenterology and Digestion 14 Genocide and Mass Atrocity 14 Martian Water and Climate History 14 Deep Learning and Neural Networks 13 Graphene and 2D Materials 13 History of Chemistry 13 Magnetism 13 Mathematical Logic and Foundations 13 Neutron Stars and Pulsars 13 Statistical Mechanics 13 Agriculture and Food Production 12 Catalysis 12 Comparative Anatomy and Morphology 12 Consumer Technology Adoption 12 Coordination and Organometallic Chemistry 12 Dark Matter 12 Differential Geometry 12 Nuclear and Radiochemistry 12 Postcolonial and Exile Literature 12 Refugee Crises and Displacement 12 Sleep and Circadian Biology 12 Hearing and Audiology 11 Hematology 11 Intelligent Tutoring Systems 11 International Space Station 11 Structural Biology 11 X-Ray and High-Energy Astronomy 11 mRNA Vaccines 11 Chromatography 10 Crystallography 10 Drama and Theatre 10 History of Psychiatry 10 Holocaust and War Literature 10 International Trade and Globalization 10 Solar System Formation 10 Swedish Academy and Nobel Institutions 10 Vision and Ophthalmology 10 Autoimmune Disease 9 Cell Cycle and Division 9 Ceramics and Glass 9 Global Health Initiatives 9 Large Language Models 9 Music and Sound Culture 9 Oceanography and Marine Science 9 Origin of Life 9 Vacuum Tubes and Early Electronics 9 Analytical Chemistry 8 Bose-Einstein Condensates 8 Cognitive Load 8 Information Theory 8 Journalism and Media 8 Personal Computing History 8 Poetry 8 Rocketry 8 Cell Death and Senescence 7 Economics of Innovation and Property 7 Holography 7 Stereochemistry 7 Civil Rights Movement 6 Gene Therapy 6 Photosynthesis 6 Renal and Urinary Physiology 6 Statistics and Probability 6 Tuberculosis 6 Batteries and Energy Storage 5 Electrochemistry 5 Mythology and Folklore 5 Pattern Formation 5 Respiratory Physiology and Disease 5 Robotics 5 Chemical and Materials Processing 4 Click and Bioorthogonal Chemistry 4 Cryo-Electron Microscopy 4 Mass Spectrometry 4 Parasitology 4 Quantum Hall Effect 4 Science in Popular Culture 4 String Theory 4 Wildlife and Conservation 4 Dark Energy 3 Dermatology and Skin Biology 3 Gravitational Lensing 3 Nobel Economics Prize History 3 Supramolecular Chemistry 3 Biomimetic Materials 2 Educational Technology 2 Notable Historical Figures 2 Plant Development 2 Regenerative Medicine 2 Visual Arts and Design 2 Bacteriophages and Viral Biology 1