Stream of consciousness: The relevant information is: Radio broadcasting became popular in the 1920s, alongside the new film industry.
Q: Radio broadcasting in the United States is a major mass medium. Unlike radio in most other countries, American radio has historically relied primarily on commercial advertising sponsorship on for-profit stations. The U.S. does not have a national broadcaster that aims its programs at the general public. Nonprofit broadcasting typically comes in three forms: radio evangelism, community radio, and government-subsidized public radio, all of which rely at least to some extent on listener donations. Shortwave broadcasting in the United States includes federal government programs, as well as a limited number of privately managed broadcasts, for overseas audiences. Radio broadcasting became popular in the 1920s, alongside the new film industry. The arrival of television in the 1950s forced radio into a niche role, as leading participants moved into the much larger field of television. In the 21st century, radio has been adjusting to the arrival of the Internet and Internet radio.

Answer this question based on the passage: when did radio become popular in the us?
A: the 1920s

Stream of consciousness: The important part for answering this question is: Charge conservation was first proposed by British scientist William Watson in 1746 and American statesman and scientist Benjamin Franklin in 1747, although the first convincing proof was given by Michael Faraday in 1843.
Q: In physics, charge conservation is the principle that electric charge can neither be created nor destroyed. The net quantity of electric charge, the amount of positive charge minus the amount of negative charge in the universe, is always conserved. Charge conservation was first proposed by British scientist William Watson in 1746 and American statesman and scientist Benjamin Franklin in 1747, although the first convincing proof was given by Michael Faraday in 1843.

Answer this question: who discovered law of conservation of electric charge?
A: first proposed by British scientist William Watson in 1746 and American statesman and scientist Benjamin Franklin in 1747 , although the first convincing proof was given by Michael Faraday in 1843

Stream of consciousness: This is the relevant information: The 36th season, Survivor: Ghost Island premiered on February 28, 2018.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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Q: The 36th season, Survivor: Ghost Island premiered on February 28, 2018.

Answer this question: what is the current season number of survivor?
A: 36th