A reasonable question of physics is if there is a smallest possible size and shortest duration and some scientists have claimed that there is and they are called the Planck length and Planck time. In this episode of Subatomic Stories, Fermilab’s Dr. Don Lincoln explains the truth of the Planck constants. It’s not what you think.
Don Lincoln article in Fermilab Today: “Planck length, minimal length”
https://www.fnal.gov/pub/today/archive/archive_2013/today13-11-01_NutshellReadMore.html
Alden Mead’s 1964 paper: “Possible Connection Between Gravitation and Fundamental Length” (subscription required)
https://journals.aps.org/pr/pdf/10.1103/PhysRev.135.B849
Frank Wilczek’s paper on absolute units
http://ctpweb.lns.mit.edu/physics_today/phystoday/Abs_limits388.pdf
Mead and Wilczek’s public conversation
http://ctpweb.lns.mit.edu/physics_today/phystoday/Alden-Repsonse323.pdf
Energy conservation in general relativity: John Baez
http://math.ucr.edu/home/baez/physics/Relativity/GR/energy_gr.html
Energy conservation in general relativity: Sean Carroll
https://www.preposterousuniverse.com/blog/2010/02/22/energy-is-not-conserved/
Fermilab physics 101:
https://www.fnal.gov/pub/science/particle-physics-101/index.html
Fermilab home page:
https://fnal.gov