Video encyclopedia

Flashback calendar


Leroy "Ed" Parsons built the first cable TV system in Astoria, Oregon. He put a large TV antenna on the roof of a high hotel building. Then he took a coaxial cable and led it 150 meters across the street to his living room. He also put a TV connected to the cable to the hotel lobby and to the window of his electronics shop. People in town wanted the same service.

Alfred Nobel patents dynamite

Swedish chemist Alfred Nobel patented a new explosive: dynamite. It was safer than conventional explosives used in Nobel’s times as black powder or nitro-glycerine. Nobel originally marketed his invention as “Nobel’s Blasting Powder.” He later changed the name to dynamite. It was derived from the Greek expression dýnamis (“power”).

Anniversaries of the (in)famous