Guglielmo Marconi (Italian pronunciation: [ɡuʎˈʎɛːlmo marˈkoːni]; 25 April 1874 – 20 July 1937) was an Italian inventor, known as the father of long distance radio transmission and for his development of Marconi's law and a radio telegraph system. Marconi is often credited as the inventor of radio, and indeed he shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy". Much of Marconi's work in radio transmission was built upon previous experimentation and the commercial exploitation of ideas by others such as Hertz, Maxwell, Faraday, Popov, Lodge, Fessenden, Stone, Bose, and Tesla. As an entrepreneur, businessman, and founder of the The Wireless Telegraph & Signal Company in 1897, Marconi succeeded in making a commercial success of radio by innovating and building on the work of previous experimenters and physicists. In 1924, he was ennobled as Marchese Marconi.

Marconi was born in Bologna on April 25, 1874, the second son of Giuseppe Marconi, an Italian landowner, and his Irish wife, Annie Jameson, daughter of Andrew Jameson of Daphne Castle in the County Wexford, Ireland and granddaughter of John Jameson, founder of whiskey distillers Jameson & Sons. Marconi was educated privately in Bologna in the lab of Augusto Righi, in Florence at the Istituto Cavallero and, later, in Livorno. As a child Marconi did not do well in school.Baptized as a Catholic, he was also a member of the Anglican Church, being married into it; however, he still received a Catholic annulment.

Walter Leland Cronkite, Jr. (November 4, 1916 – July 17, 2009) was an American broadcast journalist, best known as anchorman for the CBS Evening News for 19 years (1962–81). During the heyday of CBS News in the 1960s and 1970s, he was often cited as "the most trusted man in America" after being so named in an opinion poll. Although he reported many events from 1937 to 1981, including bombing in World War II, the Nuremberg trials, combat in the Vietnam War,Watergate, the Iran Hostage Crisis, and the murders of President John F. Kennedy, civil rights pioneer Martin Luther King, Jr., and The Beatles musician John Lennon, he was known for extensive TV coverage of the U.S. space program, from Project Mercury to the Moon landings to the Space Shuttle. He was the only non-NASA recipient of a Moon-rock award. Cronkite is well known for his departing catchphrase "And that's the way it is," followed by the date on which the appearance is aired.

Cronkite was born in Saint Joseph, Missouri, the son of Helen Lena (née Fritsche, August 1892 - November 1993), and Dr. Walter Leland Cronkite (September 1893 - May 1973), a dentist. He had remote Dutch ancestry on his father's side, the family surname originally being Krankheyt.

Alessandro Giuseppe Antonio Anastasio Gerolamo Umberto Volta (18 February 1745 – 5 March 1827) was an Italianphysicist known especially for the invention of the battery in the 1800s.

Volta was born in Como, Italy on 18 February 1745. In 1774, he became a physics professor at the Royal School in Como. A year later, he improved and popularized the electrophorus, a device that produced a static charge. His promotion of it was so extensive that he is often credited with its invention, even though a machine operating in the same principle was described in 1762 by Swedish professor Johan Wilcke.

In the years between 1776–78, Volta studied the chemistry of gases. He discovered methane after reading a paper by Benjamin Franklin on "flammable air" and carefully searched for it in Italy. In November, 1776, he found methane at Lake Maggiore, and by 1778 he managed to isolate methane. He devised experiments such as the ignition of methane by an electric spark in a closed vessel. Volta also studied what we now call electrical capacitance, developing separate means to study both electrical potential (V) and charge (Q), and discovering that for a given object, they are proportional. This may be called Volta's Law of capacitance, and likely for this work the unit of electrical potential has been named the volt.