Problem: Lee de Forest was born in 1873 in Council Bluffs, Iowa, the son of Anna Margaret (nee Robbins) and Henry Swift DeForest. He was a direct descendant of Jesse de Forest, the leader of a group of Walloon Huguenots who fled Europe in the 17th Century due to religious persecution. De Forest's father was a Congregational Church minister who hoped his son would also become a pastor. In 1879 the elder de Forest became president of the American Missionary Association's Talladega College in Talladega, Alabama, a school "open to all of either sex, without regard to sect, race, or color", and which educated primarily African-Americans.

One of de Forest's areas of research at Federal Telegraph was improving the reception of signals, and he came up with the idea of strengthening the audio frequency output from a grid Audion by feeding it into a second tube for additional amplification. He called this a "cascade amplifier", which eventually consisted of chaining together up to three Audions. At this time the American Telephone and Telegraph Company was researching ways to amplify telephone signals to provide better long-distance service, and it was recognized that de Forest's device had potential as a telephone line repeater. In mid-1912 an associate, John Stone Stone, contacted AT&T to arrange for de Forest to demonstrate his invention. It was found that de Forest's "gassy" version of the Audion could not handle even the relatively low voltages used by telephone lines. (Due to the way he constructed the tubes, de Forest's Audions would cease to operate with too high a vacuum.) However, careful research by Dr. Harold D. Arnold and his team at AT&T's Western Electric subsidiary determined that by improving the tube's design, it could be more fully evacuated, and the high vacuum allowed it to successfully operate at telephone line voltages. With these changes the Audion evolved into a modern electron-discharge vacuum tube, using electron flows rather than ions. (Dr. Irving Langmuir at the General Electric Corporation made similar findings, and both he and Arnold attempted to patent the "high vacuum" construction, but the U.S. Supreme Court ruled in 1931 that this modification could not be patented). After a delay of ten months, in July 1913 AT&T, through a third party who disguised his link to the telephone company, purchased the wire rights to seven Audion patents for $50,000. De Forest had hoped for a higher payment, but was again in bad financial shape and was unable to bargain for more. In 1915, AT&T used the innovation to conduct the first transcontinental telephone calls, in conjunction with the Panama-Pacific International Exposition at San Francisco.

was audio frequency amplification something he studied about?

Answer with quotes: One of de Forest's areas of research at Federal Telegraph was improving the reception of signals,

Problem: Maria Corazon "Cory" Cojuangco Aquino (born Sumulong; January 25, 1933 - August 1, 2009) was a Filipina politician who served as the 11th President of the Philippines and the first woman to hold that office. She is widely accredited as the Mother of Asian Democracy. The first female president in the Philippines, Aquino was the most prominent figure of the 1986 People Power Revolution, which toppled the 21-year authoritarian rule of President Ferdinand E. Marcos and restored democracy to the Philippines.

Immediately after assuming the presidency, President Aquino issued Proclamation No. 3, which established a revolutionary government. She abolished the 1973 Constitution that was in force during Martial Law, and by decree issued the provisional 1986 Freedom Constitution pending the ratification of a more formal, comprehensive charter. This allowed her to exercise both executive and legislative powers until the ratification of the 1987 Constitution and the restoration of Congress in 1987. Aquino promulgated two landmark legal codes, namely, the Family Code of 1987, which reformed the civil law on family relations, and the Administrative Code of 1987, which reorganized the structure of the executive branch of government. Another landmark law that was enacted during her tenure was the 1991 Local Government Code, which devolved national government powers to local government units (LGUs). The new Code enhanced the power of LGUs to enact local taxation measures and assured them of a share in the national revenue. Aquino closed down the Marcos-dominated Batasang Pambansa to prevent the new Marcos loyalist opposition from undermining her democratic reforms and reorganized the membership of the Supreme Court to restore its independence. In May 1986, the reorganized Supreme Court declared the Aquino government as "not merely a de facto government but in fact and law a de jure government", whose legitimacy had been affirmed by the community of nations. This Supreme Court decision affirmed the status of Aquino as the rightful leader of the Philippines. To fast-track the restoration of a full constitutional government and the writing of a new charter, she appointed 48 members of the 1986 Constitutional Commission ("Con-Com"), led by retired activist Supreme Court Associate Justice Cecilia Munoz-Palma. The Con-Com completed its final draft in October 1986. On February 2, 1987, the new Constitution of the Philippines, which put strong emphasis on civil liberties, human rights and social justice, was overwhelmingly approved by the Filipino people. The ratification of the new Constitution was followed by the election of senators and congress that same year and the holding of local elections in 1988.

What did the Family Code of 1987 entail?

Answer with quotes:
reformed the civil law on family relations,