Uploaded June 2019 | Updated September 2026, 1 week ago

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Part 4 of my gravity series

What is the Cavendish experiment? Can I do that at home? And most importantly, Is it fake?

youtu.be/s2ulO_2EVi8
youtu.be/AnEpqCEXNAU
youtu.be/oZ8XTF1CrEI

jump ahead:
@0:00 Intro
@0:40 Description of the experiment and set up
@1:36 Home-built examples
@2:41 Commercially available rigs
@3:22 Wind Isolation
@3:50 Static electricity isolation
@6:01 Plotting the historical variation in laboratory experiments
@6:59 Some experiments didn't match
@8:07 Scale the axis to show where 0 is in comparison to this data

source material:
Frank Noschese "Cavendish Experiment" youtube.com/watch?v=dyLYbvZIYoU
Gen Gen "The Cavendish Experiment and G (submission)" youtube.com/watch?v=ZiqTkpSh52g
LastByte "Universal Gravitation Experiment" youtube.com/watch?v=Olce8zLE1jM
Expériences EPFL "Balance de Cavendish" youtube.com/watch?v=LZw0gZKSMQQ
Floyd Marston "The Force of Gravity. Cavendish Experiment" youtube.com/watch?v=VYf-Glwtr68
amt253 "Ealing Film-Loops 80-2124 - Measurement of 'G' - The Cavendish Experiment" youtube.com/watch?v=zK53EPLWNgI

Historical Laboratory Measurements:
nvlpubs.nist.gov/nistpubs/jres/5/jresv5n6p1243_A2b.pdf
aapt.scitation.org/doi/abs/10.1119/1.2351558?journalCode=pte
web.archive.org/web/20070306174141/http://www.atomwave.org/rmparticle/ao%20refs/aifm%20refs%20sorted%20by%20topic/other%20rmp%20articles/CODATA2005.pdf