An Electric Power Research Institute (EPRI) engineer used a drinking bird toy to defeat an IR motion sensor to keep automatic lights on without having to move or wave their hands around. It requires a large/insulated warm liquid container to work for ~4 hrs.
PS: Complex two phase fluid flow is an awesome subject onto itself.
An Electric Power Research Institute (EPRI) engineer used a drinking bird toy to defeat an IR motion sensor to keep automatic lights on without having to move or wave their hands around. It requires a large/insulated warm liquid container to work for ~4 hrs.
PS: Complex two phase fluid flow is an awesome subject onto itself.