Ever wanted to know how engineers made their calculations before digital calculators were on every workbench? [Richard Carpenter] and [Robert Wolf] have just the thing—a sliderule simulator that can ...

Learning something on YouTube seems kind of modern. But if you are watching a 1957 instructional film about slide rules, it also seems old-fashioned. But Encyclopædia Britannica has a complete ...

Try this quick experiment. Do a Google search for ‘Steve Jobs presentation slides.’ Hit images. You’ll find hundreds of photos from Jobs’ now-famous keynotes. Look closely at the slides and you’ll ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This circular device was an aid to ...