January 25, 2005
Bead 'slashes mobile radiation'
Radiation from mobile phones can be reduced to virtually zero by a simple tiny magnetic bead which costs a few pence, a government adviser says, reports BBC News.
"Professor Lawrie Challis said clipping a ferrite bead on hands-free kits stops the radio waves travelling up the wire and into the head. He called on the mobile phone industry to start using them "as standard".
The beads, which often measure less than 1cm in diameter, are commonly used to stop data interference in computers.
"Using a ferrite bead effectively reduces emissions to the head to zero but as yet manufacturers do not put them on hands-free kits."
While studies have shown hands-free kits reduce radiation, emissions still travel up the wires on the outside and are absorbed by the head.
The beads work by absorbing these "unintentional" emissions. "
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