Does Gravity Require Extra Dimensions?



It’s been 120 years since Henry Cavendish measured the gravitational constant with a pair of lead balls suspended by a wire. The fundamental nature of gravity still eludes our best minds – but those secrets may be revealed by turning back to the Cavendish experiment. That steampunk contraption may even reveal the existence of extra dimensions of space. Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store
https://pbsspacetime.com/ Sign up for the mailing list to get episode notifications and hear special announcements!
https://mailchi.mp/1a6eb8f2717d/spacetime Hosted by Matt O'Dowd
Written by Katie McCormick & Matt O'Dowd
Graphics by Leonardo Scholzer, Yago Ballarini, & Pedro Osinski
Directed by: Andrew Kornhaber
Camera Operator: Bahaar Gholipour
Executive Producers: Eric Brown & Andrew Kornhaber #space #astrophysics #gravity Special Thanks to Our Patreon Supporters Big Bang Supporters
Alexander Tamas
David Nicklas
Fabrice Eap
Juan Benet
Morgan Hough
Radu Negulescu Quasar Supporters
Christina Oegren
Mark Heising
Vinnie Falco Hypernova Supporters
William Bryan
Chuck Zegar
Danton Spivey
Donal Botkin
Edmund Fokschaner
Hank S
John Hofmann
John Pollock
John R. Slavik
Jordan Young
Joseph Salomone
Julian Tyacke
Mathew
Matthew O'Connor
Syed Ansar
Timothy McCulloch Gamma Ray Burst Supporters
A G
Adrian Hatch
AlecZero
Andreas Nautsch
Andrew Richmond
Bradley Jenkins
Brandon labonte
Brandon Lattin
Brian Blanchard
Cass Costello
Craig Stonaha
Dan Warren
Daniel Lyons
David Bethala
David Hughes
DFaulk
Eric Kiebler
Frederic Simon
Geoffrey Short
Graydon Goss
Greg Smith
Jennifer Crosley
John Funai
John Griffith
John Robinson
Josh Thomas
Justin Waters
Kevin Lee
Kevin Warne
Kyle Hofer
Malte Ubl
Mark Daniel Cohen
Michael Conroy
Mirik Gogri
Nick Virtue
Nick Wright
Nickolas Andrew Freeman
Patrick Sutton
Paul Rose
Protius Protius
Robert Ilardi
Scott Gossett
Sean Warniaha
Shane Calimlim
Simon Oliphant
Steve Bradshaw
Tatiana Vorovchenko
Tim Stephani
Tonyface
Tybie Fitzhugh
Yannick Weyns
Yurii Konovaliuk

Källa: PBS Space Time