1834 – John Venn, English mathematician and philosopher is born.
John Venn, FRS, was an English logician and philosopher noted for introducing the Venn diagram, used in the fields of set theory, probability, logic, statistics, and computer science.
1932 – Frances E. Allen, American computer scientist is born.
Frances Elizabeth “Fran” Allen is an American computer scientist and pioneer in the field of optimizing compilers. Her achievements include seminal work in compilers, code optimization, and parallelization. She also had a role in intelligence work on programming languages and security codes for the National Security Agency.
Allen was the first female IBM Fellow and in 2006 became the first woman to win the Turing Award.
1956- Meg Whitman, American business executive and political candidate is born.
Margaret Cushing “Meg” Whitman is an American business executive and political candidate. She is the chairwoman, president, and chief executive officer of Hewlett-Packard. A native of Long Island, New York, she is a graduate of Princeton University and Harvard Business School. Whitman served as an executive in The Walt Disney Company where she was vice president of strategic planning throughout the 1980s. In the 1990s, she served as an executive for DreamWorks, Procter & Gamble, and Hasbro. Whitman served as president and chief executive officer of eBay from 1998 to 2008. During her 10 years with the company, she oversaw its expansion from 30 employees and $4 million in annual revenue to more than 15,000 employees and $8 billion in annual revenue. In 2014, Whitman was named 20th in Forbes list of the 100 most powerful women in the world.
2007 – NASA’s Phoenix spaceship is launched.
Phoenix was a robotic spacecraft on a space exploration mission on Mars under the Mars Scout Program. The Phoenix lander descended on Mars on May 25, 2008. Mission scientists used instruments aboard the lander to search for environments suitable for microbial life on Mars, and to research the history of water there. The total mission cost was about US $386 million, which includes cost of the launch.
The multi-agency program was headed by the Lunar and Planetary Laboratory at the University of Arizona, under the direction of NASA’s Jet Propulsion Laboratory. The program was a partnership of universities in the United States, Canada, Switzerland, Denmark, Germany, the United Kingdom, NASA, the Canadian Space Agency, the Finnish Meteorological Institute, Lockheed Martin Space Systems, MacDonald Dettwiler & Associates (MDA) and other aerospace companies. It was the first mission to Mars led by a public university in NASA history. It was led directly from the University of Arizona’s campus in Tucson, with project management at the Jet Propulsion Laboratory in Pasadena, Calif., and project development at Lockheed Martin in Denver, Colorado. The operational funding for the mission extended through November 10, 2008.
Phoenix was NASA’s sixth successful landing out of seven attempts and was the first successful landing in a Martian polar region. The lander completed its mission in August 2008, and made a last brief communication with Earth on November 2 as available solar power dropped with the Martian winter. The mission was declared concluded on November 10, 2008, after engineers were unable to re-contact the craft. After unsuccessful attempts to contact the lander by the Mars Odyssey orbiter up to and past the Martian summer solstice on May 12, 2010, JPL declared the lander to be dead. The program was considered a success because it completed all planned science experiments and observations.
2011 – Adafruit starts carrying EL wire!
NEW PRODUCTS – EL Wire: White, Aqua, Blue, Green, Yellow, Orange, Red and Pink! Electroluminescent wire! EL Wire, also known as Electroluminescent wire is a stiff wire core coated with phosphor and then covered with a protective PVC sheath. When an AC signal is applied to it, it glows! See colors below. It looks a little like thin neon. Very bendable, it keeps its shape and you can curl it around your finger. Its an easy way to add some glow to a project, not as bright as LEDs but uses a lot less power! Read more.
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