  In past years, triggered by their successful realizations in
electromagnetics, invisible cloaks have experienced rapid development and have
been widely pursued in many different fields, though so far only for a single
physical system. In this letter we made an unprecedented experimental attempt
to show a multidisciplinary framework designed on the basis of two different
physical equations. The proposed structure has the exceptional capability to
simultaneously control two different physical phenomena according to the
predetermined evolution scenarios. As a proof of concept, we implemented an
electric-thermal bifunctional device that can guide both electric current and
heat flux "across" a strong 'scatter' (air cavity) and restore their original
diffusion directions as if nothing exists along the paths, thus rending dual
cloaking effects for objects placed inside the cavity. This bifunctional
cloaking performance is also numerically verified for a point-source nonuniform
excitation. Our results and the fabrication technique presented here will help
broaden the current research scope for multiple disciplines and may pave a
prominent way to manipulate multiple flows and create new functional devices,
e.g., for on-chip applications.
