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Ultimate Size Comparison

From the unfathomably small Planck Length to the Universe itself... and beyond. NOTE: The sizes for many of these objects are approximate, especially those that are very, very small, or very, very large. The purpose of this video is to show just how wide the range of size scales is. List of Objects in order of appearance Plank Length (smallest length that has any meaning in physics) Strings CalabiYau manifold Planck Particle (Smallest theoretical particle) 10,000 Planck Lengths 100,000,000 Planck Lengths 10 Yoctometers Neutrino Upper Limit for the size of an Electron Upper Limit for the size of a Quark Theoretical width of a Cosmic String Upper Limit for the size of a Fundamental String Proton Neutron Uranium Nucleus Hydrogen Atom Oxygen Atom Uranium Atom Bucky Ball Photograph taken by Scanning Tunneling Microscope Carbon Nanotube DNA Strand Ribosome Parvoviridae (smallest known virus) Influenza Virus Bacteriophage Mycoplasma (smallest known bacterium) Mimivirus (largest known virus) E. Coli Bacteria Mitochondrion Smallest Wavelength of Visible Light Chloroplast Red Blood Cell Amoeba Astrocyte Dust Mite Thiomargarita namibiensis (largest known bacterium) Grain of Sand Mustard Seed Red Ant Monte Iberia Eleuth (smallest known amphibian) Jaragua Sphaero (smallest known reptile) Golf Ball Floppy Disk Compact Disk Approximate Size of a YouTube Viewing Window Labrador Retriever Rafflesia arnoldii (largest known flower) Horse Tiger Lion African Elephant M1 Abrams Tank Blue Whale (largest known animal) Westminster Abbey Titanic Sequoia (largest tree) Great Pyramid Eiffel Tower Pentagon Empire State Building World Trade Center Sears Tower Petronas Towers Taipei 101 Burj Dubai Boeing Everett Factory (largest building) Ayer's Rock Vatican City (smallest country) Grand Canyon Mount Everest (tallest mountain) Palm Jumeirah (largest man-made island) Kansai International Airport Deimos (smallest moon) Manhattan Island Phobos Andorra Rhode Island (smallest state) Greater London Neutron Star Korea Charon Great Barrier Reef (largest coral reef system) Australia Pluto (left) Triton (right) Moon Io Mercury Titan Mars Venus Earth HD 69830 b (largest known rocky planet) Neptune Uranus Saturn OGLE-TR-122b (smallest known star) Jupiter (largest solar planet) Upsilon Andromedae b (largest known planet) Sun Sirius Pollux Arcturus Rigel Antares VY Canis Majoris (largest known star)} Solar System Homunculus Nebula Stingray Nebula Cat's Eye Nebula Pillars of Creation Eagle Nebula Crab Nebula Orion Nebula Omega Centauri Nucleus of the Whirlpool Galaxy Tarantula Nebula (largest nebula) NGC 1705 NGC 1569 NGC 281 Dust Cloud (*apologies* this object is much, much smaller than it is depicted, however I believe that's the only error) Large Magellanic Cloud Whirlpool Galaxy Antennae Galaxies Milky Way Galaxy Cartwheel Galaxy Pinwheel Galaxy Messier 87 IC 1101 (largest known galaxy) Local Group Virgo Super Cluster Eridanus supervoid Sloan Great Wall (largest known object) Estimated Size of Observable Universe Estimated Size of US National Debt by 2014