Abstract: The first commerical metal-filament lamp was the osmium lamp, the filaments of which were made of osmium. They had a good commercial life at 1.5 watts per c-p., and were used in considerable ...
Whether you’re working, studying or reading, the best desk lamps will provide the right amount of lighting for your task. Not only can they illuminate your space, but they can also reduce the ...
This is not the Black Market. It couldn’t be the Black Market, because that column was shaped by the shared taste and sensibility of a group of writers whose collective voice I couldn’t emulate if I ...