Does gravity change the color of light all around you? Einstein thought so. Did this ingenious experiment proved him right?
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More about the experiment:
https://physics.aps.org/story/v16/st1
https://www.uam.es/personal_pdi/ciencias/jcuevas/Teaching/Pound-Rebka-PRL1960.pdf
CREDITS:
Host, Writer, Animator, Editor:
Greg Kestin
From the producers of PBS NOVA
© WGBH Educational Foundation
Funding provided by FQXi
Special thanks:
Tyler Howe
Ari Daniel
Paul Horowitz
Sara Tewksbury
Seeta Joseph
Karishma Desai
Lauren Aguirre
Kristine Allington
Allison Eck
Lauren Miller
Stuart McNeil
MEDIA CREDITS:
Music provided by APM:
Inside_The_Lab_A
Sound effects:
Freesound.org
Stock footage:
ambulance-city-street-night – Pond5
train-exits-tunnel – Pond5