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🔗 Biography 🔗 Computing 🔗 London 🔗 Philosophy 🔗 Philosophy/Logic 🔗 Business 🔗 England 🔗 Biography/science and academia 🔗 Philosophy/Philosophers 🔗 Philately 🔗 Biography/Core biographies

Charles Babbage (; 26 December 1791 – 18 October 1871) was an English polymath. A mathematician, philosopher, inventor and mechanical engineer, Babbage originated the concept of a digital programmable computer.

Considered by some to be a father of the computer, Babbage is credited with inventing the first mechanical computer that eventually led to more complex electronic designs, though all the essential ideas of modern computers are to be found in Babbage's Analytical Engine. His varied work in other fields has led him to be described as "pre-eminent" among the many polymaths of his century.

Parts of Babbage's incomplete mechanisms are on display in the Science Museum in London. In 1991, a functioning difference engine was constructed from Babbage's original plans. Built to tolerances achievable in the 19th century, the success of the finished engine indicated that Babbage's machine would have worked.

Noblesse oblige (; French: [nɔblɛs ɔbliʒ]) is a French expression used in English meaning that nobility extends beyond mere entitlements and requires the person who holds such a status to fulfill social responsibilities. For example, a primary obligation of a nobleman could include generosity towards those around him.

The Oxford English Dictionary states that the term suggests "noble ancestry constrains to honourable behaviour; privilege entails responsibility."

The Dictionnaire de l'Académie française defines it thus:

1. Whoever claims to be noble must conduct himself nobly.
2. (Figuratively) One must act in a fashion that conforms to one's position and privileges with which one has been born, bestowed and/or has earned.

🔗 United States 🔗 Saudi Arabia

In January 2020, the FTI Consulting company claimed that in May 2018 with "medium to high confidence" the phone of Jeff Bezos had been hacked by a file sent from the WhatsApp account of the crown prince of Saudi Arabia, Mohammed bin Salman. The Saudi Arabian embassy to the United States has denied the allegations. Billionaire Jeff Bezos, the owner of The Washington Post newspaper and founder of the company Amazon, engaged FTI Consulting in February 2019 after the National Enquirer in January 2019 reported details of Bezos's affair. FTI Consulting did not link the National Enquirer to the hack. In December 2021, the FBI stated they could not find proof to substantiate claims that Saudi Arabia hacked Jeff Bezos phone, and has considered an investigation into those allegations a low priority.

🔗 International relations 🔗 Germany 🔗 Disaster management 🔗 Poland 🔗 Current events 🔗 Rivers

The 2022 Oder environmental disaster is a mass die-off of fish, beavers and other wildlife in the Oder river in Poland and Germany, causing a health and environmental crisis in large parts of the country and subsequently a political scandal.

🔗 Architecture 🔗 Japan 🔗 Japan/Tokyo

The X-Seed 4000 is a visionary skyscraper for what would be, if it was built, the tallest building in the world. The idea was initially created and developed by Peter Neville. Its proposed 4-kilometre (2.5 mi) height, 6-kilometre-wide (3.7 mi) sea-base, and 800-floor capacity could accommodate 500,000 to 1,000,000 inhabitants. This structure would be composed of over 3,000,000 tons of pure steel.

It was designed for Tokyo, Japan by the Taisei Corporation in 1995 as a futuristic environment combining ultra-modern living and interaction with nature. Methods of transportation within the X-seed would most likely include MagLev trains.

The X-Seed 4000 "is never meant to be built," says Georges Binder, managing director of Buildings & Data, a firm which compiles data banks on buildings worldwide. "The purpose of the plan was to earn some recognition for the firm, and it worked."

Unlike conventional skyscrapers, to remain habitable the (X-Seed 4000) would be forced to actively protect its occupants from considerable internal air pressure and external air pressure gradations and weather fluctuations that its massive elevation would cause. Its design calls for the use of solar power to maintain internal environmental conditions. As the proposed site for the structure is located in the Pacific Ring of Fire, the most active volcano range in the world, the X-Seed 4000 would be subject to earthquakes and tsunamis.

A sea-based location and a Mount Fuji shape are some of this building's other major design features—the real Mount Fuji is land-based and is 3,776 metres (12,388 ft) high so is 224 metres (735 ft) shorter than the X-Seed 4000.

The X-Seed 4000 is projected to be twice the height of the Shimizu Mega-City Pyramid at 2,004 metres (6,575 ft). The Shimizu Mega-City Pyramid (proposed in 2007, also planned for Tokyo, Japan) faces most of the same problems as the X-Seed. Other projects that may be in the top five man made structures are the Ultima Tower 3,218 metres (10,558 ft) in San Francisco, Dubai City Tower 2,400 metres (7,900 ft) and the Bionic Tower 1,228 metres (4,029 ft) in either Hong Kong or Shanghai.

🔗 United States 🔗 Biography 🔗 Business 🔗 Automobiles 🔗 Miami 🔗 Indiana Historical Society 🔗 Biography/sports and games 🔗 United States/Indiana

Carl Graham Fisher (January 12, 1874 – July 15, 1939) was an American entrepreneur. Despite severe astigmatism, he became actively involved in auto racing. He was a seemingly tireless pioneer and promoter of the automotive industry and highway construction, and of real estate development in Florida. He is widely regarded as a promotional genius.

Despite family financial strains and a disability, in the late 19th century he became a bicycle enthusiast and opened a modest bicycle shop with a brother. He became involved in bicycle racing, as well as many activities related to the emerging American auto industry. In 1904, Carl Fisher and his friend James A. Allison bought an interest in the U.S. patent to manufacture acetylene headlights, a precursor to electric models which became common about ten years later. Soon Fisher's firm supplied nearly every headlamp used on automobiles in the United States as manufacturing plants were built all over the country to supply the demand. The headlight patent made him rich as an automotive parts supplier when he and Allison sold their company, Prest-O-Lite, to Union Carbide in 1913 for $9 million (equivalent of approximately $230 million in 2019).

Fisher operated in Indianapolis what is believed to be the first automobile dealership in the United States, and also worked at developing an automobile racetrack locally. After being injured in stunts himself, and following a safety debacle at the new Indianapolis Motor Speedway, of which he was a principal, he helped develop paved racetracks and public roadways. Improvements he implemented at the speedway led to its nickname, "The Brickyard."

In 1912, Fisher conceived and helped develop the Lincoln Highway, the first road for the automobile across the entire United States of America. A convoy trip a few years later by the U.S. Army along Fisher's Lincoln Highway was a major influence upon then Lt. Col. Dwight D. Eisenhower years later in championing the Interstate Highway System during his presidency in the 1950s.

Carl Fisher followed the east-west Lincoln Highway in 1914 with the conception of the north-south Dixie Highway, which led from Michigan to Miami. Under his leadership, the initial portion was completed within a single year, and he led an automobile caravan to Florida from Indiana.

At the south end of the Dixie Highway in Miami, Florida, Fisher, with the assistance of his partners John Graham McKay and Thomas Walkling, became involved in the successful real estate development of the new resort city of Miami Beach, built on a largely unpopulated barrier island and reached by the new Collins Bridge across Biscayne Bay directly at the terminus of the Dixie Highway. Fisher was one of the best known and active promoters of the Florida land boom of the 1920s. By 1926, he was worth an estimated $100 million, and redirected his promotional efforts when the Florida real estate market bubble burst after 1925. His final major project, cut short by the Great Depression, was a "Miami Beach of the north" at Montauk, located at the eastern tip of Long Island, New York.

His fortune was lost in the Stock Market Crash of 1929 and the Great Depression in the United States which followed shortly thereafter. He found himself living in a small cottage in Miami Beach, doing minor work for old friends. Nevertheless, years after his fortune had been lost, at the end of his career, he took on one more project, albeit more modest than many of his past ventures, and built the famous Caribbean Club on Key Largo, intended as a "poor man's retreat."

Although he had lost his fortune and late in life considered himself a failure, Fisher is widely regarded as a decidedly successful man in the long view of his life. He was inducted into the Automotive Hall of Fame in 1971. In a 1998 study judged by a panel of 56 historians, writers, and others, Carl G. Fisher was named one of the Fifty Most Influential People in the history of the State of Florida by The Ledger newspaper. PBS labeled him "Mr. Miami Beach." Just south of Miami Beach, Fisher Island (which he once owned, and is named for him), became one of the wealthiest and most exclusive residential areas in the United States.

🔗 Mathematics

The expression "casting out nines" may refer to any one of three arithmetical procedures:

• Adding the decimal digits of a positive whole number, while optionally ignoring any 9s or digits which sum to a multiple of 9. The result of this procedure is a number which is smaller than the original whenever the original has more than one digit, leaves the same remainder as the original after division by nine, and may be obtained from the original by subtracting a multiple of 9 from it. The name of the procedure derives from this latter property.
• Repeated application of this procedure to the results obtained from previous applications until a single-digit number is obtained. This single-digit number is called the "digital root" of the original. If a number is divisible by 9, its digital root is 9. Otherwise, its digital root is the remainder it leaves after being divided by 9.
• A sanity test in which the above-mentioned procedures are used to check for errors in arithmetical calculations. The test is carried out by applying the same sequence of arithmetical operations to the digital roots of the operands as are applied to the operands themselves. If no mistakes are made in the calculations, the digital roots of the two resultants should be the same. If they are different, therefore, one or more mistakes must have been made in the calculations.

🔗 Electronics 🔗 Electrical engineering

The trancitor as the combined word of a "transfer-capacitor" is to be considered as another active-device category besides the transistor as a "transfer-resistor". As observed in the table shown, four kinds of active devices are theoretically deduced. Among them, trancitors are missing to be the third and fourth kinds, whereas transistors, such as bipolar junction transistor (BJT) and field-effect transistor (FET), were already invented as the first and second kinds, respectively. Unlike the transistor switching the current at its output (i.e., current source), the trancitor transfers its input to the voltage output (i.e., voltage source), so an inverse relationship with each other.

🔗 Africa 🔗 Egypt 🔗 Africa/Sudan

Bir Tawil (Egyptian Arabic: بير طويل, romanized: Bīr Ṭawīl, lit. 'tall water well', [biːɾ tˤɑˈwiːl]) is a 2,060 km² (795.4 sq mi) area of land along the border between Egypt and Sudan, which is uninhabited and claimed by neither country. When spoken of in association with the neighbouring Halaib Triangle, it is sometimes referred to as the Bir Tawil Triangle, despite the area's quadrilateral shape; the two "triangles" border at a quadripoint.

Its terra nulliuscode: lat promoted to code: la status results from a discrepancy between the straight political boundary between Egypt and Sudan established in 1899, and the irregular administrative boundary established in 1902. Egypt asserts the political boundary, and Sudan asserts the administrative boundary, with the result that the Hala'ib Triangle is claimed by both and Bir Tawil by neither. In 2014, author Alastair Bonnett described Bir Tawil as the only place on Earth that was habitable but was not claimed by any recognised government.

🔗 Spaceflight 🔗 Physics 🔗 Alternative Views

A quantum vacuum thruster (QVT or Q-thruster) is a theoretical system hypothesized to use the same principles and equations of motion that a conventional plasma thruster would use, namely magnetohydrodynamics (MHD), to make predictions about the behavior of the propellant. However, rather than using a conventional plasma as a propellant, a QVT would interact with quantum vacuum fluctuations of the zero-point field.

The concept is controversial and generally not considered physically possible. However, if QVT systems were possible they could eliminate the need to carry propellant, being limited only by the availability of energy.