Slides Rule At a gathering of the Oughtred Society, the reckoning may be dead or logarithmic, but the conversation is always right on the mark BY SILKE TUDOR To those born after 1970, the thought of sending someone into space with a slide rule seems ridiculous, but, to early Apollo crews, the mere thought of going up without one would have been a good enough reason to scrub a launch. Slide rules (the Pickett N600-ES Dual Base Log/Log to be precise) were compulsory equipment during our first five trips to the moon; in fact, Neil Armstrong probably determined the distance...