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.
Quick Answer. The invention of TV was a gradual process starting as early as the 1820s, but it was not until 1927 that Philo Farnsworth produced the first television picture. Even so, David Sarnoff of RCA is remembered as the father of television because he was first to market it. Continue Reading.