Engineers at the Iwate University in Morioka, Japan have developed a material that absorbs microwave signals. This could mean an end to the constant battle that theatre houses, restaurants and alike have with mobile phones at ringing inappropriate times.
The high tech material is based on a type of wood paneling material, which could line the walls rooms and buildings. The paneling can even be used for doors. The wood is enhanced with called nickel-zinc ferrite. This absorbs the electromagnetic signals but will not transmit them.
The researchers say that the tests have been extremely successful and will create dead signal zones. The material is such that it could be sold by the meter. They hope to make the product readily available to the general public.