The Mirror Has Two Faces
Mirror,mirror___41___the wall,who is the___42___(hot) of them all?
The question___43___(take) on the meaning with Sloaris electric room heaters from Fondis of Thann,France.The devices are made from radiant glass,___44___is used for windscreens（挡风玻璃）on planes and high-speed trains.In a room,they sort of look like mirrors.
The heaters consist of two glass___45___(plate) sandwiched together.When volt,age（电流）is applied to a metallic lay（金属层）between the plates,it warms up and radiates heat to the room.To protect them from___46___(break),the plates___47___(make) from the same tempered glass used in___48___(commerce) buildings.Fondis' Jean-Marie Trotzier says that installed costs for a___49___(give) room are similar to that of electric baseboard heat,but that the panels（电热板）use 15 percent less electricity.
The panels,which come in___50___range of colors,have been available in Europe for around three years,their U.S. debut will come as soon as the company finds a distributor.