Have a deep view into what people are curious about.

🔗 India 🔗 Time 🔗 Hinduism 🔗 Measurement

Hindu texts describe units of Kala measurements, from microseconds to Trillions of years. According to these texts, time is cyclic, which repeats itself forever.

🔗 Africa 🔗 Writing systems 🔗 Africa/Niger 🔗 Morocco 🔗 Berbers 🔗 Tunisia 🔗 Africa/Algeria 🔗 Africa/Mali

Tifinagh (Tuareg Berber language: ⵜⴼⵏⵗ or ⵜⴼⵉⵏⵗ, Berber pronunciation: [tifinaɣ]) or Tuareg Tifinagh is an abjad script used to write the Tuareg Berber language by the Tuareg Berbers of the Sahara desert in southern Algeria, northeastern Mali, northern Niger and northern Burkina Faso. Tuareg Tifinagh is descended from the ancient Libyco-Berber alphabet.

Neo-Tifinagh (ⵜⵉⴼⵉⵏⴰⵖ) is an alphabet that was created in northern Algeria around the 1980s as a modified version of the traditional Tuareg Tifinagh. Neo-Tifinagh has been used since the 1980s by Algerians and later by Moroccans for the symbolic promotion of the Berber language, while mainly using the Berber Latin alphabet in most publications. Neo-Tifinagh is often simply called "Tifinagh" by non-academics in Berber countries and in the media, thus confusing it with the traditional and distinct "Tuareg Tifinagh" which is the actual "Tifinagh".

There are significant differences between the ancient Libyco-Berber script and the Tuareg Tifinagh script, but also many similarities. Many letters from the ancient Libyco-Berber script do not exist (anymore) in the Tuareg Tifinagh, while other letters evolved into a different pronunciation in the current Tuareg Tifinagh script.

There are also significant differences between the Tuareg Tifinagh script and the newly created Neo-Tifinagh alphabet. Many Tuareg Tifinagh letters are discarded in Neo-Tifinagh, and other ones are modified in form or in pronunciation. The Neo-Tifinagh alphabet also features invented vowels and other letters not found in Tuareg Tifinagh. About half of the letters in the Neo-Tifinagh alphabet were either completely invented (ⵥ,ⴻ,ⵕ,ⵄ,ⵃ,ⵞ,ⵯ,ⵇ,ⵚ,ⴽ,ⵅ,ⴿ,ⵖ,ⵠ), modified in form (ⴰ,ⵓ,ⴼ,ⵁ,ⵍ) or repurposed for a different pronunciation (ⵀ,ⵡ,ⴵ). All traditional Tuareg Tifinagh letters that consist entirely of dots (ⵗ,ⵈ,ⴾ,ⵆ,ⵘ,ⵂ) were discarded by the creators of Neo-Tifinagh and were replaced by newly invented ones. Tuareg people in the Sahara desert continue to use these dotted letters as an integral part of their traditional Tuareg Tifinagh script, thus deliberately distinguishing themselves and their writings from the northern Berbers of Morocco and northern Algeria who use the Neo-Tifinagh alphabet or the Berber Latin alphabet in writing the Berber language.

The ancient Libyco-Berber script (or the Libyc script) was used by the ancient northern Berbers known as Libyco-Berbers, also known as Libyc people, Numidians, Afri and Mauretanians who inhabited the northern parts of Morocco, Algeria, Tunisia and Libya as well as the Canary Islands west of Morocco.

From the ancient Libyco-Berber script came the Tifinagh script (Tuareg Tifinagh) through a long evolution. And then from the Tifinagh script was the modern Neo-Tifinagh alphabet created.

The name Tifinagh is stylized as Tifinaɣ in the Berber Latin alphabet, and in the Neo-Tifinagh alphabet it is written as ⵜⵉⴼⵉⵏⴰⵖ, while in the Tuareg people's traditional Tifinagh it's written as ⵜⴼⵉⵏⵗ or ⵜⴼⵏⵗ.

Neo-Tifinagh, which was created in northern Algeria around the 1980s, is a heavily modified version of the traditional Tuareg Tifinagh script. This newly created Neo-Tifinagh script spread from Algeria to Morocco and was rebranded by the Moroccan Royal Institute of the Amazigh Culture (IRCAM) as "Tifinaghe-Ircam" or simply "Tifinaghe", and is used in a small part of Moroccan and some Libyan elementary schools to teach the Berber language to children, as well as in a number of literary publications and some websites and media. In Algeria, most Berber language education programs in elementary schools, high schools and university use the Berber Latin alphabet, while a small number of schools use Neo-Tifinagh, Tuareg Tifinagh in the south, or even the Arabic alphabet.

The word tifinagh is thought by some scholars to be a Berberized feminine plural cognate or adaptation of the Latin word "Punicus", (meaning "Punic" or "Phoenician") through the Berber feminine prefix ti- and Latin Punicus; thus tifinagh could possibly mean "the Phoenician (letters)" or "the Punic letters". Others support an etymology involving the Tuareg verb efnegh, meaning to write. However, the Tuareg verb efnegh is probably derived from the noun "Tifinagh" because all the northern Berbers of Morocco, northern Algeria, Tunisia and northern Libya have a different (and probably older) verb "ari, aru, ara" which means "to write".

🔗 Terrorism 🔗 Watches 🔗 Brands

The Casio F-91W is a digital watch manufactured by Japanese electronics company Casio. Introduced in 1989, it is popular for its low price and long battery life. Annual production is 3 million units per year.

🔗 United States 🔗 Military history 🔗 Military history/Military science, technology, and theory 🔗 Military history/Weaponry 🔗 Korea

A graphite bomb is intended to be a non-lethal weapon used to disable an electrical grid. The bomb works by spreading a dense cloud of extremely fine, chemically treated carbon filaments over air-insulated high voltage installations like transformers and power lines, causing short-circuits and subsequent disruption of the electricity supply in an area, a region or even an entire small country. The weapon is sometimes referred to as blackout bomb or as soft bomb because its direct effects are largely confined to the targeted electrical power facility, with minimal risk of immediate collateral damage. However, since water supply systems and sewage treatment systems depend on electricity, widespread outbreaks of cholera and other waterborne diseases, causing large numbers of civilian deaths, have in the past been the direct consequence of this bomb's use.

🔗 Computing 🔗 Computing/Software

The Pick operating system (often called just "the Pick system" or simply "Pick") is a demand-paged, multiuser, virtual memory, time-sharing computer operating system based around a unique MultiValue database. Pick is used primarily for business data processing. It is named after one of its developers, Dick Pick.

The term "Pick system" has also come to be used as the general name of all operating environments which employ this multivalued database and have some implementation of Pick/BASIC and ENGLISH/Access queries. Although Pick started on a variety of minicomputers, the system and its various implementations eventually spread to a large assortment of microcomputers, personal computers and mainframe computers.

🔗 United States 🔗 Espionage 🔗 Scientology 🔗 Crime and Criminal Biography

Operation Snow White was a criminal conspiracy by the Church of Scientology during the 1970s to purge unfavorable records about Scientology and its founder, L. Ron Hubbard. This project included a series of infiltrations into and thefts from 136 government agencies, foreign embassies and consulates, as well as private organizations critical of Scientology, carried out by Church members in more than 30 countries. It was one of the largest infiltrations of the United States government in history, with up to 5,000 covert agents. This operation also exposed the Scientology plot "Operation Freakout", because Operation Snow White was the case that initiated the U.S. government's investigation of the Church.

Under this program, Scientology operatives committed infiltration, wiretapping, and theft of documents in government offices, most notably those of the U.S. Internal Revenue Service. Eleven highly placed Church executives, including Mary Sue Hubbard (third wife of founder L. Ron Hubbard and second-in-command of the organization), pleaded guilty and were convicted in federal court of obstructing justice, burglary of government offices, and theft of documents and government property. The case was United States v. Mary Sue Hubbard et al., 493 F.Supp. 209 (D.D.C. 1979).

🔗 Biography 🔗 Computing 🔗 Computer science 🔗 Mathematics 🔗 Biography/science and academia 🔗 Cryptography 🔗 Cryptography/Computer science 🔗 Israel

Michael Oser Rabin (Hebrew: מִיכָאֵל עוזר רַבִּין; September 1, 1931 – April 14, 2026) was an Israeli mathematician and computer scientist who was co-recipient, with Dana Scott, of the 1976 ACM Turing Award for their work on computational complexity.

🔗 Cuba

Organopónicos or organoponics is a system of urban agriculture using organic gardens. It originated in Cuba and is still mostly focused there. It often consists of low-level concrete walls filled with organic matter and soil, with lines of drip irrigation laid on the surface of the growing media. Organopónicos is a labour-intensive form of local agriculture.

Organopónico farmers employ a wide variety of agroecological techniques including integrated pest management, polyculture, and crop rotation. Most organic materials are also produced within the gardens through composting. This allows production to take place with few petroleum-based inputs.

Organopónicos first arose as a community response to lack of food security during the Special Period after the collapse of the Soviet Union. It is publicly functioning in terms of ownership, access, and management, but heavily subsidized and supported by the Cuban government.

🔗 Spaceflight

MOOSE, originally an acronym for Man Out Of Space Easiest but later changed to the more professional-sounding Manned Orbital Operations Safety Equipment, was a proposed emergency "bail-out" system capable of bringing a single astronaut safely down from Earth orbit to the planet's surface. The design was proposed by General Electric in the early 1960s. The system was quite compact, weighing 200 lb (91 kg) and fitting inside a suitcase-sized container. It consisted of a small twin-nozzle rocket motor sufficient to deorbit the astronaut, a PET film bag 6 ft (1.8 m) long with a flexible 0.25 in (6.4 mm) ablative heat shield on the back, two pressurized canisters to fill it with polyurethane foam, a parachute, radio equipment and a survival kit.

The astronaut would leave the vehicle in a space suit, climb inside the plastic bag, and then fill it with foam. The bag had the shape of a blunt cone, with the astronaut embedded in its base facing the apex of the cone. The rocket pack would protrude from the bag and be used to slow the astronaut's orbital speed enough so that he would reenter Earth's atmosphere, and the foam-filled bag would act as insulation during the subsequent aerobraking. Finally, once the astronaut had descended to 30,000 ft (9.1 km) where the air was sufficiently dense, the parachute would automatically deploy and slow the astronaut's fall to 17 mph (7.6 m/s). The foam heat shield would serve a final role as cushioning when the astronaut touched down and as a flotation device should they land on water. The radio beacon would guide rescuers.

General Electric performed preliminary testing on some of the components of the MOOSE system, including flying samples of heat shield material on a Mercury mission, inflating a foam-filled bag with a human subject embedded inside, and test-dropping dummies and a human subject in MOOSE foam shields short distances. U.S. Air Force Capt. Joe Kittinger's historic freefall from a balloon at 103,000 ft (31,000 m) in August 1960 also helped demonstrate the feasibility of such extreme parachuting. However, the MOOSE system was nonetheless always intended as an extreme emergency measure when no other option for returning an astronaut to Earth existed; falling from orbit protected by nothing more than a spacesuit and a bag of foam was unlikely to ever become a particularly safe—or enticing—maneuver.

Neither NASA nor the U.S. Air Force expressed an interest in the MOOSE system, and so by the end of the 1960s the program had been quietly shelved.

🔗 Electronics

The Smith chart, invented by Phillip H. Smith (1905–1987), and T. Mizuhashi, is a graphical calculator or nomogram designed for electrical and electronics engineers specializing in radio frequency (RF) engineering to assist in solving problems with transmission lines and matching circuits. The Smith chart can be used to simultaneously display multiple parameters including impedances, admittances, reflection coefficients, ${\displaystyle S_{nn}\,}$ scattering parameters, noise figure circles, constant gain contours and regions for unconditional stability, including mechanical vibrations analysis. The Smith chart is most frequently used at or within the unity radius region. However, the remainder is still mathematically relevant, being used, for example, in oscillator design and stability analysis. While the use of paper Smith charts for solving the complex mathematics involved in matching problems has been largely replaced by software based methods, the Smith charts display is still the preferred method of displaying how RF parameters behave at one or more frequencies, an alternative to using tabular information. Thus most RF circuit analysis software includes a Smith chart option for the display of results and all but the simplest impedance measuring instruments can display measured results on a Smith chart display.