Your example of Einstein's field equations is a terrible one; I've got a Ph.D. in math phys and I don't understand them very well. How about just the laws of thermodynamics, basic probability, statistics and logic, and perhaps the basics of how computers work? Basic economics would be gravy.
These are all very relevant to the world we live in today.
By the way, the whole Sokal affair is forgotten in the sciences. I first learned about it when a random passerby (an english prof) made an unkind comment about Sokal when he saw the name on a (physics) paper I was reading. Admittedly, this was at NYU (the epicenter). But this was also 11 years after the prank.
Also, engineers can pick up deconstructionism relatively quickly:
These are all very relevant to the world we live in today.
By the way, the whole Sokal affair is forgotten in the sciences. I first learned about it when a random passerby (an english prof) made an unkind comment about Sokal when he saw the name on a (physics) paper I was reading. Admittedly, this was at NYU (the epicenter). But this was also 11 years after the prank.
Also, engineers can pick up deconstructionism relatively quickly:
http://www.info.ucl.ac.be/~pvr/decon.html