Abstract: The present invention is an apparatus and method that includes a photographic camera synchronized to a video camera with a computer and viewing monitors in a unique combination that allows professional photography customers to visually determine the appropriate size of a portrait photograph and matching picture frame by displaying upon a viewer a perspective view of a video image of the photographic image and the matching picture frame within a simulated room image.

Abstract: A composition able to absorb mercury vapor and to disinfect a surface. The composition hasa source of halogen; anda non-aqueous solvent of low vapor pressure for the source of halogen. The composition is of low vapor pressure.

Abstract: A composition to absorb mercury vapour and to suppress mercury vapour. The composition comprises an iodide and a polyhydric alcohol. It may include a Lewis acid. A method of absorbing mercury comprising applying to the source of the mercury the above composition is described.

Abstract: A sensor circuit for detecting a ground fault in devices that eliminate or prevent static electricity and for producing appropriate alarm signals to indicate an undesirable ungrounded condition. In particular, the sensor circuit includes means for monitoring a ground-fault system by using a wrist strap monitoring circuit, a proximity monitoring circuit and at least one surface monitoring circuit. The wrist strap monitoring circuit and the surface monitoring circuits are used to detect the status of a grounding connection between an operator and/or a surface at a work station and a ground potential. The proximity monitoring circuit is used to determine whether an operator (or another person) is in proximity to the work station. A logic circuit means detects the status of the aforementioned monitoring circuits and selectively activates an alarm means if a fault condition exists.

Abstract: A composition to absorb mercury vapor and suppress the formation of the vapor. The composition comprises a carrier liquid, for example water, an alcohol or glycol, copper ions, for example copper sulphate and thiosulphate ions, for example sodium thiosulphate. The absorbent is efficient and clean in use.