[Patman2700] has a nice scope for his paintball gun that uses a red dot instead of cross-hairs. The problem is that he kept forgetting to turn it off which ended up running the batteries down ...

BivarOpto, the Optoelectronics division of Bivar Inc, introduced a light pipe designed specifically to operate with board-mounted push-button switches, enabling non-lighted switch models to perform ...

One of those nights when it was too hot to sleep I decided to get a drink of cold water at three in the morning. I stepped into the second-floor hall and pushed the light switch. It is the old round, ...