Table 1.

Details of experiments

System	Measured variable	Units	tw, s	Source
Aluminum	conductance (σ)	0.02δσ/σ	1,200,960; 360	Grenet et al., ref. 32 (2007)
Mylar	dielectric constant (ϵ)	10-6δϵ/ϵ	18,000	Ludwig et al., ref. 35 (2003)
Indium oxide	conductance (σ)	0.01δσ/σ	20; 180; 1,620	Ovadyahu, ref. 28 (2006)
Porous silicon	conductance (σ)	0.02δσ/σ	110	S. Borini, personal communication (2010)