Chairs and pencils would weight the same, save for the small detail that chairs and pencils would not exist! Margarita García Pérez explains all this along with many other interesting bits of the physics of mass.

Credits

Animation proton constituents
ATLAS Experiment, CERN
   • ATLAS Z boson animation  

Animation Bag model
Steven Heppelmann,
Spin Physics at RHIC (STAR)
http://php.scripts.psu.edu/hfa/IntroP...

Music

Day 7
Cosmic Sailing
   • Day 7  Cosmic Sailing  

Miniature:

BorderLINE Architechture
Flying pencils
http://borderlinearchitecture.com/exh...