Does Light Ever End?
In short: A photon does not wear out as it travels: light dims by spreading, stretches with expanding space, and its journey ends only when it meets matter.
A 1:58 short film in the series “Journey of Light”, narrated by intellect_voice_01.
Sources used in this film: California State University, Fullerton – Department of Physics (Physics 227L lab procedure), “227_OISL_S22_v1b.pdf”; The Pennsylvania State University, College of Earth and Mineral Sciences (ASTRO 801 course, author Dr. Christopher Palma), “Luminosity and Apparent Brightness | ASTRO 801: Planets, Stars, Galaxies, and the Universe”; NASA Goddard Space Flight Center (Cosmicopia), “NASA's Cosmicopia -- Ask Us - Space Physics”; NASA Goddard Space Flight Center (Imagine the Universe!), “How Far? How Powerful? Lesson Plan”; Fermi National Accelerator Laboratory (Fermilab), Office of Public Affairs, “Fermilab | Science | Inquiring Minds”; Physics Van, Department of Physics, University of Illinois Urbana-Champaign (The Grainger College of Engineering), “Does Light Lose Energy as it Travels?”; University of Maryland, Department of Physics (PHYS 132 course lecture slides), “A14WK15.ppt”; University of Texas at Austin (Richard Fitzpatrick, quantum mechanics course notes), “Absorption and Stimulated Emission of Radiation”; NASA Science (NASA), “Wave Behaviors - NASA Science”; NASA Science (National Aeronautics and Space Administration), “What Is Cosmological Redshift? - NASA Science”; NASA Science (Hubble Space Telescope), “Hubble Cosmological Redshift - NASA Science”; European Space Agency (ESA), “Planck and the cosmic microwave background”; European Space Agency (ESA), “Why the microwave”; arXiv (Cornell University); paper by R. M. T. White, T. M. Davis et al. for the Dark Energy Survey (DES) Collaboration, accepted in Monthly Notices of the Royal Astronomical Society, “The Dark Energy Survey Supernova Program: Slow supernovae show cosmological time dilation out to $z \sim 1$”; Edward L. Wright, UCLA Division of Astronomy & Astrophysics (Ned Wright's Cosmology Tutorial), “Errors in Tired Light Cosmology”.
Sources used in this film
- California State University, Fullerton – Department of Physics (Physics 227L lab procedure) — 227_OISL_S22_v1b.pdf · View →
- The Pennsylvania State University, College of Earth and Mineral Sciences (ASTRO 801 course, author Dr. Christopher Palma) — Luminosity and Apparent Brightness | ASTRO 801: Planets, Stars, Galaxies, and the Universe · View →
- NASA Goddard Space Flight Center (Cosmicopia) — NASA's Cosmicopia -- Ask Us - Space Physics · View →
- NASA Goddard Space Flight Center (Imagine the Universe!) — How Far? How Powerful? Lesson Plan · View →
- Fermi National Accelerator Laboratory (Fermilab), Office of Public Affairs — Fermilab | Science | Inquiring Minds · View →
- Physics Van, Department of Physics, University of Illinois Urbana-Champaign (The Grainger College of Engineering) — Does Light Lose Energy as it Travels? · View →
- University of Maryland, Department of Physics (PHYS 132 course lecture slides) — A14WK15.ppt · View →
- University of Texas at Austin (Richard Fitzpatrick, quantum mechanics course notes) — Absorption and Stimulated Emission of Radiation · View →
- NASA Science (NASA) — Wave Behaviors - NASA Science · View →
- NASA Science (National Aeronautics and Space Administration) — What Is Cosmological Redshift? - NASA Science · View →
- NASA Science (Hubble Space Telescope) — Hubble Cosmological Redshift - NASA Science · View →
- European Space Agency (ESA) — Planck and the cosmic microwave background · View →
- European Space Agency (ESA) — Why the microwave · View →
- arXiv (Cornell University); paper by R. M. T. White, T. M. Davis et al. for the Dark Energy Survey (DES) Collaboration, accepted in Monthly Notices of the Royal Astronomical Society — The Dark Energy Survey Supernova Program: Slow supernovae show cosmological time dilation out to $z \sim 1$ · View →
- Edward L. Wright, UCLA Division of Astronomy & Astrophysics (Ned Wright's Cosmology Tutorial) — Errors in Tired Light Cosmology · View →
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Sources
- Summary by Intellect · source: California State University, Fullerton – Department of Physics (Physics 227L lab procedure): 227_OISL_S22_v1b.pdf
- Also: The Pennsylvania State University, College of Earth and Mineral Sciences (ASTRO 801 course, author Dr. Christopher Palma: Luminosity and Apparent Brightness | ASTRO 801: Planets, Stars, Galaxies, and the Universe
- Also: NASA Goddard Space Flight Center (Cosmicopia): NASA's Cosmicopia -- Ask Us - Space Physics
- Also: NASA Goddard Space Flight Center (Imagine the Universe!): How Far? How Powerful? Lesson Plan
- Also: Fermi National Accelerator Laboratory (Fermilab), Office of Public Affairs: Fermilab | Science | Inquiring Minds
- Also: Physics Van, Department of Physics, The Grainger College of Engineering, University of Illinois Urbana-Champaign: Does Light Lose Energy as it Travels?
- Also: University of Maryland, Department of Physics (PHYS 132 course lecture slides): A14WK15.ppt
- Also: University of Texas at Austin (Richard Fitzpatrick, quantum mechanics course notes): Absorption and Stimulated Emission of Radiation
- Also: Wave Behaviors - NASA Science
- Also: NASA Science (James Webb Space Telescope): What Is Cosmological Redshift? - NASA Science
- Also: NASA Science: Hubble Cosmological Redshift - NASA Science
- Also: European Space Agency (ESA): Planck and the cosmic microwave background
- Also: European Space Agency (ESA): Why the microwave
- Also: arXiv (Cornell University); paper by R. M. T. White, T. M. Davis et al. for the Dark Energy Survey (DES) Collaboration, : The Dark Energy Survey Supernova Program: Slow supernovae show cosmological time dilation out to $z \sim 1$
- Also: Edward L. Wright, UCLA Division of Astronomy & Astrophysics (Ned Wright's Cosmology Tutorial): Errors in Tired Light Cosmology
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