How do we KNOW light is a wave? @ScienceAsylum

Uploaded June 2019 | Updated September 2026, 2 weeks ago

We might not have unified electrodynamics until 1865, but we've known light was a wave since the original double-slit experiment in 1801. Let's talk about diffraction and wave interference.
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VIDEO ANNOTATIONS/CARDS

Where Does Light Come From?
youtu.be/3TufSRaHB6g

What the HECK is Energy?
youtu.be/snj1wBtn6I8

The Color White Does NOT Exist:
youtu.be/-E6dxybpUvo
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RELATED YOUTUBE VIDEOS

Veritasium on Double-Slit:
youtu.be/Iuv6hY6zsd0
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SUPPORT THE SCIENCE ASYLUM

Patreon:
patreon.com/ScienceAsylum

Advanced Theoretical Physics (eBook):
gumroad.com/l/ubSc

Merchandise:
scienceasylum.com
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HUGE THANK YOU TO THESE PATRONS

Asylum Orderlies:
Daniel Bahr, William Morton

Einsteinium Crazies:
Albert B. Cannon, Tim Ruffles, LT Marshall Faulds, Ilya Yashin, Rick Finn

Plutonium Crazies:
JKLMN Anderson, Kevin MacLean

Platinum Crazies:
Vittorio Monaco, Al Davis, Stephen Blinn, Mikayla Eckel Cifrese, Evgeny Ivanov
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OTHER SOURCES

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LINKS TO COMMENTS

Photon Questions:
youtube.com/watch?v=3TufSRaHB6g&lc=UgxKhdP1c2l84L0qJPJ4AaABAg
youtube.com/watch?v=3TufSRaHB6g&lc=UgyQoADcf7PnNgzHo9t4AaABAg
youtube.com/watch?v=3TufSRaHB6g&lc=UgyhhUktuKtrdJmQLI94AaABAg
youtube.com/watch?v=3TufSRaHB6g&lc=UgyaqEhjv7T68RbuJn14AaABAg
youtube.com/watch?v=3TufSRaHB6g&lc=Ugy8p_KqsLuQM7nm-rd4AaABAg

Featured Comment:
youtube.com/watch?v=-E6dxybpUvo&lc=UgyUAPD5tU3zDq80E6J4AaABAg
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IMAGE CREDITS

Christiaan Huygens:
commons.wikimedia.org/wiki/File:Christiaan_Huygens-painting.jpeg
commons.wikimedia.org/wiki/File:Web_Huygens690.jpg

Isaac Newton:
commons.wikimedia.org/wiki/File:GodfreyKneller-IsaacNewton-1689.jpg
commons.wikimedia.org/wiki/File:Opticks.jpg

Thomas Young:
commons.wikimedia.org/wiki/File:Thomas_Young_by_Thomas_Lawrence.jpg

$How do we KNOW light is a wave? We might not have unified electrodynamics until 1865, but weve known light was a wave since the original double-slit experiment in 1801. Lets talk about diffraction and wave interference. VIDEO ANNOTATIONS/CARDS Where Does Light Come From? https://youtu.be/3TufSRaHB6g What the HECK is Energy? https://youtu.be/snj1wBtn6I8 The Color White Does NOT Exist: https://youtu.be/-E6dxybpUvo RELATED YOUTUBE VIDEOS Veritasium on Double-Slit: https://youtu.be/Iuv6hY6zsd0 SUPPORT THE SCIENCE ASYLUM Patreon: http://www.patreon.com/ScienceAsylum Advanced Theoretical Physics (eBook): https://gumroad.com/l/ubSc Merchandise: https://www.scienceasylum.com HUGE THANK YOU TO THESE PATRONS Asylum Orderlies: Daniel Bahr, William Morton Einsteinium Crazies: Albert B. Cannon, Tim Ruffles, LT Marshall Faulds, Ilya Yashin, Rick Finn Plutonium Crazies: JKLMN Anderson, Kevin MacLean Platinum Crazies: Vittorio Monaco, Al Davis, Stephen Blinn, Mikayla Eckel Cifrese, Evgeny Ivanov OTHER SOURCES LINKS TO COMMENTS Photon Questions: https://www.youtube.com/watch?v=3TufSRaHB6g&lc=UgxKhdP1c2l84L0qJPJ4AaABAg https://www.youtube.com/watch?v=3TufSRaHB6g&lc=UgyQoADcf7PnNgzHo9t4AaABAg https://www.youtube.com/watch?v=3TufSRaHB6g&lc=UgyhhUktuKtrdJmQLI94AaABAg https://www.youtube.com/watch?v=3TufSRaHB6g&lc=UgyaqEhjv7T68RbuJn14AaABAg https://www.youtube.com/watch?v=3TufSRaHB6g&lc=Ugy8p_KqsLuQM7nm-rd4AaABAg Featured Comment: https://www.youtube.com/watch?v E6dxybpUvo&lc=UgyUAPD5tU3zDq80E6J4AaABAg IMAGE CREDITS Christiaan Huygens: https://commons.wikimedia.org/wiki/File:Christiaan_Huygens-painting.jpeg https://commons.wikimedia.org/wiki/File:Web_Huygens690.jpg Isaac Newton: https://commons.wikimedia.org/wiki/File:GodfreyKneller-IsaacNewton-1689.jpg https://commons.wikimedia.org/wiki/File:Opticks.jpg Thomas Young: https://commons.wikimedia.org/wiki/File:Thomas_Young_by_Thomas_Lawrence.jpg$

You CANNOT See Through Walls (or Windows) with a Thermal Camera.

What Counts as Intelligent Life? #shorts

Still Dont Understand Gravity? This Will Help.

$Why Does Light REALLY Bend? A lot of optical illusions can be explained by Fermats principle of least time, but why does light obey it? On a fundamental level, it all comes down to quantum mechanics, specifically quantum optics, where we use the famous Feynman path integral formulation to explain light through photons. VIDEO ANNOTATIONS/CARDS How Fast Is Light? https://youtu.be/a9T26ItpcDA Lagrangian Mechanics: https://youtu.be/MIBfKJHMWHU You Dont Know How Mirrors Work: https://youtu.be/rYLzxcU6ROM SUPPORT THE SCIENCE ASYLUM Patreon: http://www.patreon.com/ScienceAsylum Advanced Theoretical Physics (Paperback): http://www.lulu.com/shop/nick-lucid/advanced-theoretical-physics-a-historical-perspective/paperback/product-24250687.html Advanced Theoretical Physics (eBook): https://gumroad.com/l/ubSc Merchandise: https://www.scienceasylum.com HUGE THANK YOU TO THESE PATRONS Warden of the Asylum: YDT Asylum Counselors: Matthew OConnor Asylum Orderlies: William Morton Einsteinium Crazies: Albert B. Cannon, LT MarshMan, Ken Davis, Wacky, Eoin OSullivan, Ilya Yashin Plutonium Crazies: Al Davis, Kevin MacLean, JKLMN Anderson Platinum Crazies: Kyle Bowles, Jon Adams, Mr. Orn Jonasar, Rick Dinning, Eugene Boone, Fletch, Felipe Cruz, Vittorio Monaco, Stephen Blinn, Mikayla Eckel Cifrese OTHER SOURCES https://www.feynmanlectures.caltech.edu/I_26.html https://www.feynmanlectures.caltech.edu/I_27.html https://www.feynmanlectures.caltech.edu/I_31.html http://www.vega.org.uk/video/subseries/8 https://www.physicsclassroom.com/Class/refrn/u14l1b.cfm Optics by Hecht https://www.engineeringtoolbox.com/refractive-index-d_1264.html https://www.etymonline.com/word/refraction LINKS TO COMMENTS https://www.youtube.com/watch?v=1n_otIs6z6E&lc=UgzJ-NZ6tSFKnQEsiVB4AaABAg IMAGE CREDITS Black Hole Visualization: https://www.nasa.gov/feature/goddard/2019/nasa-visualization-shows-a-black-hole-s-warped-world$

When Conservation of Energy FAILS! (Noethers Theorem)

Dark Matter Isnt Just Dark. Its Invisible.