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How far away is it

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  • Home
  • How Far
    • Preface
    • Chapter 1: The Solar System
      • Earth
      • Solar System
      • Heliosphere
    • Chapter 2: The Milky Way
      • Nearby Stars
      • Distant Stars
      • Planetary Nebula
      • Star Clusters and Supernova
      • Star Birth Nebula
      • Milky Way
    • Chapter 3: Galaxies
      • Andromeda and the Local Group
      • Local Galaxy Volume
      • Virgo Supercluster
      • Local Superclusters
      • Colliding Galaxies
      • Cosmos
    • Credits and Research Topics
  • How Small
    • Preface
    • The Microscopic
    • The Atom
    • Elementary Particles
    • The Higgs Boson
    • Superposition and Quantum Entanglement
    • How Small Is It – Credits and Research
  • How Fast
    • Preface
    • The Speed of Light
    • Special Relativity
    • General Relativity I – Geometry
    • General Relativity II – Effects
    • Gravitational Lensing
    • Black Holes
    • Gravitational Waves
    • Credits and Research
  • How Old
    • Preface
    • Cosmology Fundamentals
    • Big Bang ΛCDM Cosmology
    • How Old Are Stars
    • How Old is the Earth-Moon System
    • How Old is the Solar System
    • Credits and Research
  • The Math
  • Updates
    • 2023 Review
    • 2022 Review
    • 2021 Review and Mars Update
    • 2020 Review & The JWST
    • 2019 Review & M87 Black Hole Image
    • 2018 Update & Brown Dwarfs
    • 2017 Update & Gamma-Ray Bursts
    • 2016 Update
    • 2015 Update
    • 2014 Update
    • 2013 Update
  • Classroom Aids
    • Mathematical Foundations
    • Relativity
    • Quantum Mechanics
    • Astronomy
    • Cosmology
    • Concept Index
  • Documents
  • Lesson Plans
  • Contact

Category: Uncategorized

Superposition and Quantum Entanglement

By David Butler Posted on May 10, 2022 Posted in Uncategorized

In this, the last chapter in the ‘How Small Is It’ video book, we’ll cover quantum superposition and quantum entanglement. We’ll also finish the work on the double slit experiment we covered in our first chapter on ‘The Microscopic’. We’ll …

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“How Fast Is It” now available on YouTube

By David Butler Posted on December 13, 2015 Posted in Uncategorized No Comments

Just published “How Fast Is It”, my most recent science video book on YouTube. You can see it here. My “How Far Away Is It” channel now has 1,590,000 hits and 12,614,000 minutes watched. Not bad for science videos. With …

“How Fast Is It” now available on YouTube Read more »

Tagged with: astronomy, education, physics, science, STEM

Hello world!

By David Butler Posted on April 29, 2013 Posted in Uncategorized No Comments

Welcome to WordPress. This is your first post. Edit or delete it, then start blogging!

How Far Away Is It

Source Links

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