1 Hypothyroiditis can occur if the thyroid gland does not function correctly, or if it is not stimulated properly. 2  The most common cause of hypothyroidism in the US is Hashimoto's disease. 3  Symptoms of hypothyroidism include fatigue, cold intolerance and joint and muscle pain.ypothyroidism is a condition that occurs when the thyroid gland does not produce enough thyroid hormones to meet the needs of the body. The thyroid creates two thyroid hormones, triiodothyronine (T3) and thyroxine (T4) that regulate metabolism. They also affect the following: 1.
Other Attempts in Modifying the System. With Peter Goldmark leading the group of CBS researchers, Goldmark invented a particular mechanical color TV system in 1940. This system was actually based on John Logie Bairdâs designs in 1928. But this didnât last long in the market.
If 1965 was the watershed moment for color broadcasting, there was still the small problem of the viewing public not having color television sets. According to NBC, there were only 2,860,000 color households in the United States as of January 1st, 1965 (though that was up from 1,620,000 on January 1st, 1964) [ 25 ]. By July 1st, the number stood at 3,600,000 and on October 1st it was at 4,450,000 color sets [ 26 ], [ 27 ].