The United States Constitution requires Senators to be at least 30 years of age. Age does not determine seniority in the Senate. As of October 18, 2015, 5 senators are in their 80s, 18 are in their 70s, 32 are in their 60s, 30 are in their 50s, 14 are in their 40s, and 1 is in his 30s. 1  The median age of currently serving Senators is 7009195864480000000â  62 years, 24 days.
No, it wasnât Thomas Edison. Light bulbs were in use long before Edison applied for the patent in 1879. British inventor Humphry Davy invented an incandescent light bulb in 1801 and created the âarc lampâ in 1809. In 1835, Scottish inventor James Bowman Lindsay demonstrated a constant electric light in Dundee.
1879 After many experiments, Thomas Edison invented an incandescent light bulb that could be used for about 40 hours without burning out. By 1880 his bulbs could be used for 1200 hours. 1879 Electric lights (Brush arc lamps) were first used for public street lighting, in Cleveland, Ohio.California Electric Light Company, Inc. in San Fransicso was the first electric company to sell electricity to customers.The company used two small Brush generators to power 21 Brush arc light lamps.821 The first electric motor was invented by Michael Faraday. 1826 Georg Ohm defined the relationship between power, voltage, current and resistance in âOhms Law.â. 1831 Using his invention the induction ring, Michael Faraday proved that electricity can be induced (made) by changes in an electromagnetic field.