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.
The first fully modern color TV was announced in 1944, but color TV sets did not go on sale in the US until 1953. Color television has a long history reaching back to 1928. Itâ¦'s roots go back just a little further still. In 1925 John Logie Baird demonstrated the first working television system in London England. It used a spinning disc with holes in it to produce a moving image.