A little more than a hundred years after Thomas Edison first worked out how a bit of carbonised sewing thread could continue to light up an incandescent bulb, electricity has insinuated itself into every aspect of our daily lives. Edison's eventual...
Various do-it-yourself meters can be purchased or hired:
* EMF Professional Electric and Magnetic Field meter can be rented for £25/week (www.healthy-house.co.uk)
* Powerwatch sells or hires out meters which can monitor your electrical and microwave