SWTLsummary_page_8

SWTLsummary | page 8 | https://thedailydialectics.com/pdfs/SWTLsummary/SWTLsummary.pdf

BUT Energy Can’t Propagate Faster Than c! A homogeneous plane wave in an isotropic medium has an intrinsic impedance _| on OL wet+io in free space where ao=0 this reduces to Z=yuc = lu 1207 ohms Free Space, Z=377 ohms *Schelkunoff, Bell System Tech. J., 17, January 1938