And now, here for your scientific? viewing pleasure, I give you The Bovis Scale and Barometer.

                      BOVIS SCALE

          also known as the BOVIS BIOMETER

The modern version of the Bovis scale was developed by Blanche Merz from the original by the engineer Simoneton, and the French physicist Bovis.

The intensity of the rays or vibrations, of a place, plant or object can be measured using a dowsing pendulum. The Bovis scale utilises the knowledge of electromagnetic wavelengths and specifically the wavelength of red light which is in the region of 6,500