IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Telegraph Pocket Sounder and Key, ...

We talk about Morse code, named after its inventor, Samuel Morse. However, maybe we should call it Vail code after Alfred Vail, who may be its real inventor. Haven’t heard of him? You aren’t alone.

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Telegraph keys are electrical on-off ...

An example of a radio set-up from the 1960s along with a telegraph key and amateur radio guide booklet. (Photo by Amber Phipps) VIENNA — World Amateur Radio Day is celebrated on April 18 to recognize ...