Exploring String Theory and Particle Physics

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Delve into the fascinating world of string theory and particle physics, uncovering the concepts of spatial dimensions, fundamental interactions, and the accidental discovery that led to a paradigm shift in theoretical physics. Learn about the contributions of key figures and how classical mechanics paved the way for modern physics to understand the microscopic realm.

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Uploaded on Jun 30, 2025 | 0 Views

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The Universality of Physics THE STRING THEORY By: Won S. Oh

SPATIAL DIMENSIONS IN PHYSICS Dimension Dimension 0 0th th 1 1st st 2 2nd 3 3rd rd 4 4th th nd A dot A line A square A cube A tesseract cubic world with time

THE PHYSICAL FORCES FUNDAMENTAL INTERACTIONS Interactions Interactions Current Current Theory Theory Mediators Mediators Relative Relative Strength Strength Long Long distance distance Behavior Behavior Range ( Range (m m) ) Strong Quantum Chromodyna mics (QCD) Quantum Electrodyna mics (QED) Electroweak gluons 1028 1 1.4 * 10-15 Electromagn etic (EM) photons 1036 1/r2 1045 Weak W & Z Bosons gravitons 1025 e m W,Z r/r 10-17 Gravitation General Relativity 1 1/r2 INFINITY http://hyperphysics.phy- astr.gsu.edu/hbase/forces/funfor.html

THE ACCIDENTAL DISCOVERY Gabriele Veneziano, an Italian theoretical physicist in CERN, accidentally founded the field of string theory while going through the Euler s mathematical functions.

PARTICLES What are particles? Mainly viewed as points (0th Dimension)

CLASSICAL MECHANICS Newton, the significant contributor Based on Observations Explained how our world functions Calculus founded for calculations

THE MODERN PHYSICS DEALING WITH THE MICROSCOPIC WORLD The modern physics required something new General Relativity Quantum Mechanics Condensed Matter Nuclear and Atomic Physics