The word 'broadcasting' dates back centuries, and originally described a method of sowing seeds. But it took on a new meaning ...
On Oct. 9, 1876, Alexander Graham Bell made a telephone call to his assistant a few miles away — the first demonstration of ...
Whether you declare “SOS” in Morse code or spell it out in seashells on a desert island, a vast majority of the world will understand that you’re in need of help. But before “SOS” was the ...
THE reader of Rayleigh's classical treatise on the theory of sound cannot hut feel that the subject is more of theoretical than of practical interest. It is true that the theoretical results have many ...
MODERN invention rivals ancient miracle in its startling and world-transforming effects. The things which in our youth we were taught to be impossible are now the every day incidents of our life and ...
According to Alfred Nobel's will, the Nobel Prize in Physics was to go to "the person who shall have made the most important discovery or invention within the field of physics." The prize has been ...
In 1858, Italian mathematician Quirico Filopanti outlined the world’s first 24-zone time system—decades before Greenwich set the global clock ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more.
Abstract: Frequency shift telegraphy is described and compared with amplitude modulation telegraphy under various conditions found in radio and wire transmission. Experimental data are given to ...
Famous for its piers, tower, and summer crowds, Blackpool may seem an unlikely wartime hero. But behind the candyfloss and fairground rides lies a secret chapter of World War II history that helped ...
Abstract: Francisco Salva Campillo read in December 16th, 1795 before the Academy of Sciences in Barcelona the paper "On the application of electricity to telegraphy". This is probably one of the ...
But they weren't only interested in astronomy. The extraction of iron, which led to the Iron Age, is a chemical process which early metallurgists developed without understanding any of the science ...