The Net Advance of Physics:
ORDER-OF-MAGNITUDE ESTIMATES, FERMI PROBLEMS, ETC.

BACK OF THE ENVELOPE CALCULATION, ESTIMATION, ETC.

• General:
  • Fermi Problems [Wikipedia]
  • Fermi Problems Site [University of Maryland]

  • A View from the Back of the Envelope by Mitchell N. Charity [Vendian.org]

THE NET ADVANCE OF PHYSICS