OCR Text |
Show oo NOISE MAY PROVIDE LIGHT FOR TRAFFIC LONDON, Oct 28. Tho prospect bl London being lit by the noise of its own traffic Is suggested as tho result re-sult of a new application of Piezoelectricity, Piezo-electricity, a process hy which sound 16 converted Into power Plczo-electrlcity Is the property! -sed by certain crystals whereby they generate electricity when subjected sub-jected to vibration. Two Cambridge undergraduates have harnessed thiu force to the needs of commerce and u.o Invention Is being shown at th wireless exhibition here. |