Find an Orthopedic Specialist Near You. However, behind knee pain may be a symptom of deep vein thrombosis (blood clot in the leg), which is a serious and life-threatening condition. The blood clot can break loose and cause a pulmonary embolism in the lung, a heart attack, or even stroke. Deep vein thrombosis has similar symptoms to a Bakerâs cyst.
Baird was a Scottish engineer and inventor of the world's first working television system in Hastings, England, in 1923. His public demonstration subsequently took place in Selfridges, a department store in London England, during March 1925.
John Logie Baird, a Scotsman, invented the first fully working TV system in the United Kingdom. It was first demonstrated in 1925 in London and was the first system to be used â¦ for public scheduled broadcasts in 1929.The system was electro-mechanical and used a rotating disc to deliver a picture.ohn Logie Baird (August 13, 1888 - June 14, 1946) a Scottish engineer invented the TV on the 26th January 1926 and it was demonstrated a year later in 1927 the phonovision â¦ system of recording TV.