Floyd Alburn Firestone (1898–1986) was an acoustical physicist, who in 1940 while a professor at the University of Michigan invented the first practical ultrasonic testing method and apparatus.
 He was granted US Patent 2,280,226 for the invention in 1942.
 Manufactured by Sperry Corporation, the testing device was known variously as the Firestone-Sperry Reflectoscope, the Sperry Ultrasonic Reflectoscope, the Sperry Reflectoscope and sometimes also just as a Supersonic Reflectoscope, the name Firestone had originally coined for the instrument.
 The technology is not just used in quality control in factories to reject defective parts before shipment, but also revolutionized transportation safety.
 For example, ultrasonic testing is used for safety maintenance inspection of railroad cars, particularly axles and wheels, aircraft, particularly fuselages, and other transportation vessels for material fatigue.
 Dr. Firestone’s ultrasonic pulse echo technique for metal defect testing was also later applied in medical diagnosis, giving birth to the field of Echocardiography and to the field of Medical Ultrasonography, generally.
 Dr. Firestone was the editor of the Journal of the Acoustical Society of America from 1939-1957.
 Among Firestone’s many other inventions in his field are in a single year an “automatic device for the minute inspection of flaws”, “a new and useful improvement in hook-up of electrical apparatus”, and “[a] device for measuring noise”, and, even, later a “musical typewriter”.
Emma Goldman (June 27 [O.S. June 15] , 1869May 14, 1940) was an anarchist political activist and writer.
 She played a pivotal role in the development of anarchist political philosophy in North America and Europe in the first half of the 20th century.
Almeda Sperry (born July 13, 1879) was an anarchist, political activist, and former prostitute.
 She was notably involved with fellow anarchist Emma Goldman, although the romantic aspects of that friendship are contested.
World Trade Center Almeda Park is an international trade, service and information centre in Cornellà de Llobregat (suburb of Barcelona), Catalonia, Spain.
 WTC Almeda Park has been in operation since June 2004.
 Currently consists of several buildings, it is planned to build a skyscraper (Hotel WTC Almeda Park) with 28 floors and rise 94 metres.
Sperry or Sperry Top-Sider is the original American brand of boat shoe designed in 1935 by Paul A. Sperry, older brother of writer and illustrator Armstrong Sperry, whose books often featured a sailing theme.
 Sperrys, or Top-Siders, were the first boat shoes introduced into the boating and footwear markets.
 Today the Sperry brand is owned by Wolverine World Wide and is headquartered in Lexington, Massachusetts.
Paul Alling Sperry born in New Haven, Connecticut, the second of three sons born to Nettie Alling Sperry and Sereno Clark Sperry.
 His younger brother, Armstrong Wells Sperry, was a writer and illustrator of children’s literature, best known for his 1941 Newbery Medal-winning book, "Call It Courage".
 Sperry’s father was a native of New Haven who served in leadership positions for several companies in the area, including the William Wells Company, the United States Finishing Company and the Pond Lily Company.
 His grandfather, William Wallace Sperry was a shipbuilder and served as a sergeant major in the 13th Connecticut Infantry Regiment during the American Civil War.
William Miller Sperry (1839–1927) is the namesake of the William Miller Sperry Observatory in Cranford, New Jersey.
 He moved to Cranford in 1898 and succeeded his brother Thomas Sperry as president of S&H Green Stamps.
 Buried in Fairview Cemetery (Westfield, New Jersey), Sperry was the donor behind Sperry Park bordering the Rahway River in Cranford.
 The site is also part of the Rahway River#Rahway River Parkway, a greenway of the Union County Department of Parks and Recreation Sperry's great-granddaughter, Frances Beinecke, is an environmentalist and the former president of Natural Resources Defense Council, and his grandson is William Sperry Beinecke.
Architect Joseph Evans Sperry was born in 1854 in Georgetown, South Carolina.
 He later relocated to Baltimore, Maryland, where he partnered with James Bosley Noel Wyatt to form the architectural firm Wyatt and Sperry.
 Their affiliation lasted from 1878 to 1887.
 The two probably became acquainted while working in the office of Architect, E. Francis Baldwin, where he worked from 1872 until 1876.
 With Wyatt, he designed a number of buildings around Baltimore before breaking off on his own.
 Sperry became one of Baltimore's leading architects, designing many public buildings, including churches, hospitals, and banks.
 In 1914 he was named an AIA Fellow.
 Sperry also designed several buildings at Johns Hopkins University and one building at West Virginia University.
 Sperry's most famous building is probably the Emerson "Bromo-Seltzer" Tower in Baltimore.
 Sperry's buildings were designed in a variety of styles, but overall were eclectic.
 Sperry practiced architecture independently from 1888 until he died in 1930.
Almeda University (also known as Almeda College, Almeda College & University, or Almeda International University) was a non-accredited American institution that offered various academic degrees including online certificate programs, general "Life Experience Degrees", and doctorates in religion and theology.
 Almeda was accredited by the Council for Distance Education Accreditation, the Interfaith Education Ministries (IEM), and the Association for Online Academic Excellence (AOAEX), none of which were recognized by the United States Department of Education or the Council for Higher Education Accreditation.
Almeda is an area of Cornellà de Llobregat (Catalonia, Spain), in the metropolitan area of Barcelona.
 It was constructed in front of Parc de Can Mercader.
 The neighbourhood originated during the Industrial Revolution and grew substantially with the settlement of migrant workers from other areas of the country during the 1950s.
 Some of Cornellà's most important companies are located there.
 Its main business estates are Fira de Cornellà, WTC Almeda Park and the local branch of El Corte Inglés.
 Almeda has had a railway station since 1912, even though the current one was built in 1985.
 It is integrated in the Barcelona Metro network as part of line L8.

Question: Both Almeda Sperry and Emma Golman were and anarchist and what?
Answer: political activist