Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫  π  -¹ ² ³ °

You are not logged in.

## #576 2019-07-05 00:14:27

ganesh
Registered: 2005-06-28
Posts: 28,456

### Re: crème de la crème

Coenraad Johannes van Houten (15 March 1801, Amsterdam – 27 May 1887, Weesp) was a Dutch chemist and chocolate maker known for the treatment of cocoa mass with alkaline salts to remove the bitter taste and make cocoa solids more water-soluble; the resulting product is still called "Dutch process chocolate". He is also credited with introducing a method for pressing the fat (cocoa butter) from roasted cocoa beans, though this was in fact his father, Casparus van Houten's invention.

Father and son van Houten

Coenraad van Houten was the son of Casparus van Houten (1770–1858) and Arnoldina Koster. His father opened a chocolate factory in Amsterdam in 1815, with a mill turned by laborers. At that time, cocoa beans were ground into a fine mass, which could then be mixed with milk to create a chocolate drink or, with addition of sugar, cinnamon, and vanilla, made into cookies.

Cocoa press

In 1828 Casparus van Houten Sr. (and not his son, who is usually credited) patented an inexpensive method for pressing the fat from roasted cocoa beans. The center of the bean, known as the "nib", contains an average of 54 percent cocoa butter, which is a natural fat. Van Houten's machine – a hydraulic press – reduced the cocoa butter content by nearly half. This created a "cake" that could be pulverized into cocoa powder, which was to become the basis of all chocolate products.
The introduction of cocoa powder not only made creating chocolate drinks much easier, but also made it possible to combine the powder with sugar and then remix it with cocoa butter to create a solid, already closely resembling today's eating chocolate.

In 1838 the patent expired, enabling others to produce cocoa powder and build on Van Houten's success, experimenting to make new chocolate products. In 1847 English chocolate maker J. S. Fry & Sons produced arguably the first chocolate bar. Later developments were in Switzerland, where Daniel Peter introduced milk chocolate in 1875 and Rodolphe Lindtmade chocolate more blendable by the process of conching in 1879.

Dutch process chocolate

Coenraad Van Houten introduced a further improvement by treating the powder with alkaline salts (potassium or sodium carbonates) so that the powder would mix more easily with water. Today, this process is known as "Dutching". The final product, Dutch chocolate, has a dark color and a mild taste.

Later career

In 1835 Coenraad van Houten married Hermina van Houten (unrelated) from Groningen. In 1850 he moved his production from a windmill in Leiden to a steam factory in Weesp. By that time he was exporting chocolate to England, France, and Germany. In 1866 John Cadbury traveled to Weesp to buy a Van Houten press, but didn't use it in his manufacturing until 1875.

Coenraad's son Casparus Johannes (1844–1901), employed since 1865, had a gift for marketing and contributed greatly to the growth of the company. Advertisements for Van Houten could be found on trams throughout Europe and the United States. As early as 1899 Van Houten produced a commercial film that depicted a sleepy clerk who recovers miraculously after eating some chocolate. The factory was a boost for the town of Weesp, whose population doubled in the second half of the 19th century. Casparus Jr. had himself built a 99-room Jugendstil villa in Weesp, by the renowned architect A. Salm (1857–1915). Work was started in 1897 but not completed until 1901, the year he died.

The Van Houten company was sold in 1962 to W.R. Grace, and the factories in Weesp closed in 1971. The Van Houten brand name, still in use, has been transferred several times since, in 1990 from the German chocolate manufacturer Jacobs Suchard to Philip Morris. It subsequently was owned by the Stollwerck chocolate manufacturing company and since 2002 by Barry Callebaut.

The legacy of Dutch process cocoa

Dutch process cocoa is generally acknowledged as superior to cocoa not processed in this way. The combination of the inventions by father and son van Houten led to the nineteenth-century mass production and consumption of chocolate, or, as some call it, the "democratization" of chocolate.

Popular culture

"Drink Van Houten's Cocoa!" wrote Vladimir Mayakovsky in his poem, A Cloud in Trousers. This infamous citation is the title of Ornela Vorpsi's book from 2010.
A Van Houten's Cocoa shop can be seen during the opening battle sequence of Neil Jordan's 1996 film ‘Michael Collins.’

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

## #577 2019-07-07 01:11:43

ganesh
Registered: 2005-06-28
Posts: 28,456

### Re: crème de la crème

543) Mária Telkes

Mária Telkes, (born December 12, 1900, Budapest, Austria-Hungary [now in Hungary]—died December 2, 1995, Budapest), Hungarian-born American physical chemist and biophysicist best known for her invention of the solar distiller and the first solar-powered heating system designed for residences. She also invented other devices capable of storing energy captured from sunlight.

Telkes, daughter of Aladar Telkes and Maria Laban de Telkes, was raised in Budapest. She studied physical chemistry at the University of Budapest, graduating with a B.A. in 1920 and a Ph.D. in 1924. She became an instructor at the institution in 1924 but decided to immigrate to the United States after visiting a relative, who served at the time as the Hungarian consul in Cleveland. In 1925 she accepted a position as a biophysicist for the Cleveland Clinic Foundation, where she worked with American surgeon George Washington Crile to create a photoelectric device that recorded brain waves.

Telkes became an American citizen in 1937. That same year she became a research engineer at Westinghouse Electric, where she developed instruments that converted heat into electrical energy; however, she made her first forays into solar energy research in 1939. That year, as part of the Solar Energy Conversion Project at the Massachusetts Institute of Technology (MIT), she worked on thermoelectric devices powered by sunlight. Telkes was assigned to the U.S. Office of Scientific Research and Development during World War II, and it was there that she created one of her most important inventions: a solar distiller capable of vaporizing seawater and recondensing it into drinkable water. Although the system was carried aboard life rafts during the war, it was also scaled up to supplement the water demands of the Virgin Islands. She remained at MIT after the war, becoming an associate research professor in metallurgy in 1945.

Until the end of her career, Telkes continued to develop solar-energy applications and received several patents for her work. Together with American architect Eleanor Raymond, she designed and constructed the world’s first modern residence heated with solar energy. The house was built in Dover, Massachusetts, in 1948. Boxlike solar collectors captured sunlight and warmed the air in a compartment between a double layer of glass and a black sheet of metal. Warmed air was then piped into the walls, where it transferred heat to Glauber’s salts (crystallized sodium sulfate) for storage and later use. She improved upon existing heat-exchanger technology to create solar stoves and solar heaters, receiving a \$45,000 grant from the Ford Foundation in 1953 to create a universal solar oven that could be adapted for use by people living at all latitudes. She also worked to develop materials capable of enduring the temperature extremes of space. In 1980 she assisted the U.S. Department of Energy in the development of the world’s first solar-electric residence, which was built in Carlisle, Massachusetts.

In 1952, Telkes became the first recipient of the Society of Women Engineers Achievement Award. In 1977 she received a lifetime achievement award from the National Academy of Sciences Building Research Advisory Board for her contributions to solar-heated building technology and the Charles Greeley Abbot Award from the American Solar Energy Society.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

## #578 2019-07-09 01:36:14

ganesh
Registered: 2005-06-28
Posts: 28,456

### Re: crème de la crème

544) Amos E. Joel Jr.

Amos Edward Joel Jr. (March 12, 1918 – October 25, 2008) was an American electrical engineer, known for several contributions and over seventy patents related to telecommunications switching systems.

Biography

Joel was born in Philadelphia, and spent portions of his youth living in New York City, where he graduated from DeWitt Clinton High School in the Bronx.

He earned his B.Sc. (1940) and M.Sc. (1942) in electrical engineering from Massachusetts Institute of Technology, where he worked on the Rockefeller Differential Analyzer (project headed by Vannevar Bush), and a thesis on functional design of relays and switch circuits, advised by Samuel H. Caldwell. Joel worked at Bell Labs (1940–83) where he first undertook cryptology studies (collaboration with Claude Shannon), followed by studies on electronic switching system that resulted in the 1ESS switch (1948–60). He then headed the development of advanced telephone services (1961–68), which led to several patents, including one on Traffic Service Position System and a mechanism for handoff in cellular communication (1972). The latter invention made mobile telephony widely available by allowing a multitude of callers to use the limited number of available frequencies simultaneously and by allowing the seamless switching of calls from tower to tower as callers traveled. After 1983, he worked as a consultant to AT&T, developing mechanisms for optical switching.

Joel died in his home in Maplewood, New Jersey on October 25, 2008, at age 90.

Edward Joel Amos Jr. could be the inventor of the century. He invented the cellphone (Mobile communication system, US 3663762 A) in 1970.

Abstract

The invention provided for a high capacity cellular mobile communication system arranged to establish and maintain continuity of communication paths to mobile stations passing from the coverage of one radio transmitter into the coverage of another radio transmitter. A control center determines mobile station locations and enables a switching center to control dual access trunk circuitry to transfer an existing mobile station communication path from a formerly occupied cell to a new cell location. The switching center subsequently enables the dual access trunk to release the call connection to the formerly occupied cell.

Summary of the Invention

In the exemplary embodiment an electronic data processor is incorporated into a mobile communications system comprising a plurality of base stations each located in individual cell areas. The system is arranged to locate mobile stations in any cell area and to establish communication paths between located mobile stations and between located mobile stations and fixed stations. Apparatus is provided to establish and maintain a record of communication links serving located mobile stations. Additional apparatus is provided to periodically interrogate predetermined cell areas to detect the movement of located mobile stations into new cell areas. Apparatus is also provided to establish and record identity of communication links to the new cell areas and to reassign existing communication paths to new communication links while maintaining continuity of communication service.

In accordance with one feature of my invention directional antenna apparatus is provided in each cell area to locate mobile stations within particular cell areas.

Another feature of my invention is the provision of a stored program electronic data processor to assimilate location information, assign communication links, and process service requests for mobile stations located in a plurality of cell areas.

Another feature of my invention is the provision of switching apparatus wherein communication paths may be established between located mobile stations and between located mobile stations and fixed stations connected to the telephone direct distance dialing network.

In accordance with still another feature of my invention dual access switching apparatus is provided wherein communication paths established over communication links to certain cell areas may be switched onto communication links to other cell areas while maintaining continuity of communications between roaming mobile stations.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

## #579 2019-07-11 01:20:09

ganesh
Registered: 2005-06-28
Posts: 28,456

### Re: crème de la crème

545) Tom Parry Jones

Thomas "Tom" Parry Jones OBE (27 March 1935 – 11 January 2013) was a Welsh scientist, inventor and entrepreneur, who was responsible for developing and marketing the first handheld electronic breathalyser, winning the Queen's Award for Technological Achievement in 1980 for the work. Born and raised on Anglesey, he attended Bangor University and went on to study for his doctorate at University of Alberta, Canada. Prior to his work on the breathalyser at Lion Laboratories, he was a lecturer at the Royal Military College of Science and the University of Wales Institute of Science and Technology. He established the Dr Tom Parry Jones Endowment Fund at Bangor University in 2002. After selling Lion Laboratories in 2005, he set up PPM Technology and Welsh Dragon Aviation. A trust was set up in his, and his wife's, names. The Tom and Raj Jones Trust promotes work by young entrepreneurs.

Early life, education and early career

Parry Jones was born on 27 March 1935 at Carreglefn, near Amlwch, Anglesey, North Wales, the son of a farmer. He was a native Welsh language speaker, which he used as a first language. Parry Jones attended the primary school at Carreglefn and the Ysgol Syr Thomas Jones comprehensive school at Amlwch. He studied chemistry at Bangor University, graduating in 1958, and then took a doctorate at the University of Alberta, Canada.

Following his doctorate, Parry Jones appointed as a lecturer at the Royal Military College of Science at Shrivenham, Oxfordshire. In 1964, he moved to the University of Wales Institute of Science and Technology (UWIST) at Cardiff.

Lion Laboratories

In 1967, Parry Jones established Lion Laboratories in Cardiff, with his colleague and Managing Director William "Bill" Ducie, an electrical engineer. The Road Safety Act 1967 introduced the first legally enforceable maximum blood alcohol level for drivers in the UK, above which it became an offence to be in charge of a motor vehicle; and introduced the roadside breathalyser, made available to police forces across the country.

In 1969, Lion Laboratories' version of the breathalyser, known as the Alcolyser, and incorporating crystal-filled tubes that changed colour (yellow to green) above a certain level of alcohol in the breath. Parry Jones continued to work at the University at this time, until in 1975 when he asked for a two-year leave of absence in order to investigate the commercial possibilities of the device. During 1976 he informed the University that he would not be returning. Lion Laboratories won the Queen's Award for Technological Achievement in 1980 for development of the first hand-held electronic breath-alcohol instrument (Alcolmeter), and this device was later marketed worldwide. Alcohol in the breath was analysed by an electrochemical [fuel cell] sensor rather than chemical crystals, providing a more reliable kerbside screening test for alcohol influence. A positive test was then complemented by sampling blood or urine for analysis at a forensic laboratory.

In 1983 breath-alcohol analysis was accepted for evidential purposes and Lion Intoximeter 3000 was the first instrument approved by the British Home Office for testing drunken drivers. More recently, a much more sophisticated breath-alcohol analyzer, the Lion Intoxilyzer 6000 is now used by the UK police for evidential purposes. In 1991, Lion Laboratories was sold to the American company MPD, Inc.. Parry Jones later said, "I found inventing the device the easy part. But producing it, developing it and selling it was the challenge.”

Other activities

Parry Jones later set up PPM Technology, a company manufacturing instruments for monitoring toxic gases. Through PPM, he supported chemistry students at Bangor University. He also established a small air charter company, Welsh Dragon Aviation, in which he flew return charter flights for passengers from Mona Airport to Cardiff in a Cessna 340. For more than two decades, Parry Jones was a trustee of the Engineering Education Scheme for Wales; a student of the year award is given out annually by the organisation. In 2005, he was named a fellow of Bangor University.

Endowment Fund

In about 2002, he established the Dr Tom Parry Jones Endowment Fund, at Bangor University, to encourage young people to develop careers and entrepreneurship in science and technology. The fund supports an annual Bangor Science Festival. He was also chairman of the Welsh Centre for International Affairs; and a trustee of the Engineering Education Scheme for Wales.

Personal life

With his ex-wife Jean, he had a son, Gareth and two daughters Diane and Sara. Parry Jones was appointed an Officer of the Order of the British Empire (OBE) in 1986. He was inducted into the Gorsedd in 1997.

Death

On 11 January 2013, Parry Jones died at Llandudno General Hospital, aged 77, following a short illness. Following his death, Bangor University released a statement which read "Dr Tom Parry Jones' worldwide reputation and genuine enthusiasm for developing Wales' future economy through ensuring that young people are well supported in developing their scientific knowledge and entrepreneurial skills - made him a treasured alumnus of Bangor University.". A memorial service was held at Capel Mawr, Llangristiolus, which was followed a day later by his cremation at Bangor Crematorium. He was survived by his wife, children and mother.

A plaque honouring Parry Jones was unveiled by his wife, Raj, at the Llangefni police station in November 2013. The Tom and Raj Jones Trust was set up which promotes young entrepreneurs. The inaugural Tom Parry Jones Memorial Lecture was given in 2014 at Bangor University by First Minister of Wales, Carwyn Jones. It was entitled "A Breathtaking Legacy of an Inventor, Entrepreneur & Philanthropist", and Jones said "I am very pleased to be able to be part of the inaugural Tom Parry Jones Memorial Lecture and, in doing so, to further honour such an outstanding role model for researchers, entrepreneurs and philanthropists across Wales and far beyond". Coinciding with that lecture, the Jones o Gymru Crisp company released a sweet chilli crisp dedicated to Parry Jones' achievements, which raised money for the Trust.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

## #580 2019-07-14 00:34:06

ganesh
Registered: 2005-06-28
Posts: 28,456

### Re: crème de la crème

546) Vinton Cerf

Vinton Cerf, in full Vinton Gray Cerf, (born June 23, 1943, New Haven, Connecticut, U.S.), American computer scientist who is considered one of the founders, along with Robert Kahn, of the Internet. In 2004 both Cerf and Kahn won the A.M. Turing Award, the highest honour in computer science, for their “pioneering work on internetworking, including the design and implementation of the Internet’s basic communications protocols, TCP/IP, and for inspired leadership in networking.”

In 1965 Cerf received a bachelor’s degree in mathematics from Stanford University in California. He then worked for IBM as a systems engineer before attending the University of California at Los Angeles (UCLA), where he earned a master’s degree and then a doctorate in computer science in 1970 and 1972, respectively. He then returned to Stanford, where he joined the faculty in computer science and electrical engineering.

While at UCLA, Cerf worked under fellow student Stephen Crocker in the laboratory of Leonard Kleinrock on the project to write the communication protocol (Network Control Program [or Protocol]; NCP) for the ARPANET (Advanced Research Projects Agency Network; see DARPA), the first computer network based on packet switching, a heretofore untested technology. (In contrast to ordinary telephone communications, in which a specific circuit must be dedicated to the transmission, packet switching splits a message into “packets” that travel independently over many different circuits.) UCLA was among the four original ARPANET nodes. Cerf also worked on the software that measured and tested the performance of the ARPANET. While working on the protocol, Cerf met Kahn, an electrical engineer who was then a senior scientist at Bolt Beranek & Newman. Cerf’s professional relationship with Kahn was among the most important of his career.

In 1972 Kahn moved to DARPA as a program manager in the Information Processing Techniques Office (IPTO), where he began to envision a network of packet-switching networks—essentially, what would become the Internet. In 1973 Kahn approached Cerf, then a professor at Stanford, to assist him in designing this new network. Cerf and Kahn soon worked out a preliminary version of what they called the ARPA Internet, the details of which they published as a joint paper in 1974. Cerf joined Kahn at IPTO in 1976 to manage the office’s networking projects. Together, with many contributing colleagues sponsored by DARPA, they produced TCP/IP (Transmission Control Protocol/Internet Protocol), an electronic transmission protocol that separated packet error checking (TCP) from issues related to domains and destinations (IP).

Cerf’s work on making the Internet a publicly accessible medium continued after he left DARPA in 1982 to become a vice president at MCI Communications Corporation (WorldCom, Inc., from 1998 to 2003). While at MCI he led the effort to develop and deploy MCI Mail, the first commercial e-mail service that was connected to the Internet. In 1986 Cerf became a vice president at the Corporation for National Research Initiatives, a not-for-profit corporation located in Reston, Virginia, that Kahn, as president, had formed to develop network-based information technologies for the public good. Cerf also served as founding president of the Internet Society from 1992 to 1995. In 1994 Cerf returned to MCI as a senior vice president, and from 2000 to 2007 he served as chairman of the Internet Corporation for Assigned Names and Numbers (ICANN), the group that oversees the Internet’s growth and expansion. In 2005 he left MCI to become vice president and “chief Internet evangelist” at the search engine company Google Inc.

In addition to his work on the Internet, Cerf served on many government panels related to cybersecurity and the national information infrastructure. A fan of science fiction, he was a technical consultant to one of author Gene Roddenberry’s posthumous television projects, Earth: Final Conflict. Among his many honours were the U.S. National Academy of Engineering’s Charles Stark Draper Prize (2001), the Prince of Asturias Award for Technical and Scientific Research (2002), the Presidential Medal of Freedom (2005), the Queen Elizabeth Prize for Engineering (2013), and the French Legion of Honour (2014).

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

## #581 Yesterday 01:15:14

ganesh
Registered: 2005-06-28
Posts: 28,456

### Re: crème de la crème

547) Anatol Josepho

Anatol Marco Josepho (March 31, 1894 – December 16, 1980), born Anatol Josephewitz, was a Jewish Siberian immigrant to the United States from Omsk, Russia, who invented and patented the first automated photo booth in 1925, which was named the "Photomaton". In 1927, he was paid one million dollars for the invention.

Biography

Josepho's father was a wealthy jeweler and his mother died when he was three years old. He developed a close bond with his father and became interested in the Wild West cultural phenomenon of expansion in the United States in the late 1800s. He began taking photographs with a Brownie camera produced by the Eastman Kodak Company during his childhood and he attended a local technical institute to pursue his growing interest in photography in 1909 at the age of 15. Anatol fled his home country of Siberia after the 1917 Russian Revolution. He moved to China, opening a photo studio in Shanghai, then to the United States. In the early 1920s, he worked in New York to develop the Photomaton. In July 1926, he met and married Ganna Belle Kehlmann (January 10, 1904 – October 19, 1978). The two were friends with their neighbor, performer Will Rogers and his wife Betty Blake. They had two children, both boys. He died on December 16, 1980 at the age of 86 in a rest home in La Jolla from a series of strokes.

The Photomaton

Josepho's invention of the photo booth, known as the "Photomaton", debuted in September 1925 at 1659 Broadway Street in Manhattan, located in the heart of New York City. The Photomaton charged twenty-five cents for a strip of eight photos that were developed in eight minutes. The automation was achieved in a room that synchronized a coin controlled camera that featured a single source of diffuse light. White-gloved attendants stayed by the machine during hours of operation to control the crowds as well as to provide maintenance for the machine. Around 280,000 customers, for instance, waited the eight-minute process as reported by Time magazine in April 1927. The Photomaton Company was created to place Photomaton machines all over the country. Future President Franklin D. Roosevelt was a member of the board of directors. In 1928, Josepho sold the rights to the machine to Henry Morgenthau, Sr. for \$1,000,000, equivalent to \$14,591,085 in 2018. In an interview with The New York Times, Morgenthau said that the machine will allow them "to do in the photographic field what Woolworths has done in novelties and merchandise, Ford in automobiles". The following year, the machine was introduced to the European market with notable figures such as André Breton and Salvador Dalí had their portraits taken.

Legacy

Camp Josepho, a 110-acre property, which stretches from Mandeville Canyon to Will Rogers State Park, was given to the Boy Scouts of the Crescent Bay Council on July 7, 1941 by Anatol Josepho[11] Sixty-five years later, Camp Josepho under the Western Los Angeles County Council (WLACC) continues to fulfill its mission of serving youth throughout Los Angeles, with a unique emphasis on filmmaking, shooting sports, and computer programming. Remnants of what once was Josepho's personal mansion can be found between the camp and Murphy Ranch.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline