Have a deep view into what people are curious about.

🔗 Food and drink

Gastronorm (GN), sometimes spelled Gastro-Norm, is a European standard for kitchenware tray and container sizes that is commonly seen worldwide in the catering and professional food industry, as well as in certain parts of the high-end consumer market. Gastronorm is generally used worldwide except in most of the United States and Canada, which have their own domestic systems. The Gastronorm standard was first introduced in Switzerland in 1964 and became an official European standard in 1993 with the EN 631 standard.

The basic format is called "GN 1/1" and measures 530×325 mm, with other Gastronorm sizes being multiples and fractions of this basic module size. Gastronorm containers allow for flexible, place efficient, and compatible storage, transport, processing, and serving and can be adapted for shelving, transport on trolleys and conveyor belts, secure temporary placement in compatible sinks, working tables, refrigerators, freezers, ovens, hot water baths, and compatible dishwashers, or display. Other products that have adopted the Gastronorm format include cutting boards and non-stick mats. Many professional food products are even packaged for optimal compatibility with Gastronorm containers, such as pizza base sizes, pre-baked breads, or frozen vegetables.

The most commonly used materials for the containers are stainless steel and (transparent or non-transparent) plastic. Stackable baking trays and stainless steel containers are commonly used for cooking in an oven, while polycarbonate and polypropylene variants are suited for storage of cold foods. Porcelain or melamine containers are used for display.

🔗 Biography 🔗 Mathematics 🔗 Biography/science and academia 🔗 Chicago 🔗 Armenia

Alexander (Smbat) Abian (January 1, 1923 – July 24, 1999) was an Iranian-born Armenian-American mathematician who taught for over 25 years at Iowa State University and became notable for his frequent posts to various Usenet newsgroups, and his advocacy for the destruction of the Moon.

🔗 Russia 🔗 Russia/technology and engineering in Russia 🔗 Russia/history of Russia 🔗 Gemology and Jewelry 🔗 Russia/visual arts in Russia 🔗 Gemology and Jewelry/Jewelry

A Fabergé egg (Russian: яйцо Фаберже́, romanized: yaytso Faberzhe) is a jewelled egg created by the jewellery firm House of Fabergé, in Saint Petersburg, Russia. As many as 69 were created, of which 57 survive today. Virtually all were manufactured under the supervision of Peter Carl Fabergé between 1885 and 1917. The most famous are his 52 "Imperial" eggs, 46 of which survive, made for the Russian Tsars Alexander III and Nicholas II as Easter gifts for their wives and mothers. Fabergé eggs are worth millions of dollars and have become symbols of opulence.

🔗 Typography

Tiresias is a family of TrueType sans-serif typefaces that were designed with the aim of legibility by people with impaired vision at the Scientific Research Unit of Royal National Institute of Blind People in London. The font was originally designed for the RNIB by Chris Sharville of Laker Sharville Design Associates who was working with John Gill at the time.

The family includes

• Tiresias Infofont – for information labels, optimized for maximum legibility at a distance of 30–100 cm.
• Tiresias Keyfont – for labeling the tops of keys of keyboards, PIN pads, appliances, remote controls (features exaggerated punctuation marks, no descender on the J)
• Tiresias LPfont – for large-print publications. A wedge-serif design.
• Tiresias PCfont – for raster displays
• Tiresias Screenfont – for television subtitling and on-screen user interfaces
• Tiresias Signfont – a more open spacing for use on signs

In late 2007, all Tiresias fonts except Tiresias Screenfont were released under the GNU General Public License version 3 or any later version.

The Tiresias Screenfont was sold by Bitstream Inc., who in 2012 were acquired by Monotype Corporation. The acquiring company continues to market Tiresias on its websites.

🔗 United States 🔗 Religion 🔗 Islam 🔗 Discrimination 🔗 African diaspora 🔗 United States/Texas 🔗 Religion/Interfaith 🔗 Dallas-Fort Worth 🔗 Islam/Islam and Controversy

On September 14, 2015, 14-year-old Ahmed Mohamed was arrested at MacArthur High School in Irving, Texas, for bringing a disassembled digital clock to school. The incident ignited allegations of racial profiling and Islamophobia from many media sources and commentators.

The episode arose when Mohamed reassembled the parts of a digital clock in an 8-inch (20 cm) pencil container and brought it to school to show his teachers. His English teacher thought the device resembled a bomb, confiscated it, and reported him to the principal. The local police were called, and they questioned him for an hour and a half. He was handcuffed, taken into custody and transported to a juvenile detention facility, where he was fingerprinted and his mug shot was taken. He was then released to his parents. According to local police, they arrested him because they initially suspected he may have purposely caused a bomb scare. The case was not pursued further by the juvenile justice authorities, but he was suspended from school.

Following the incident, the police determined Mohamed had no malicious intent, and he was not charged with any crime. News of the incident went viral – initially on Twitter – with allegations by commentators that the actions of the school officials and police were due to their stereotyping of Mohamed based on his Sudanese ancestry and Muslim faith. Afterwards, U.S. President Barack Obama as well as other politicians, activists, technology company executives, and media personalities commented about the incident. Many of them praised Mohamed for his ingenuity and creativity, and he was invited to participate in a number of high-profile events related to encouraging youth interest in science and technology. Although Mohamed was cleared in the final police investigation, he became the subject of conspiracy theories – many of them contradictory, citing no evidence, and conflicting with established facts – which claimed that the incident was a deliberate hoax.

On November 23, 2015, Ahmed's family threatened to sue the City of Irving and the school district for civil rights violations and physical and mental anguish unless they received written apologies and compensation of $15 million. This lawsuit was dismissed in May 2017 for lack of evidence. The family also sued conservative talk show hosts Glenn Beck, Ben Shapiro, and another Fox News commentator for lesser amounts on the grounds of defamation of character. Both cases were dismissed with prejudice for First Amendment free speech reasons. In late 2015, his family decided to accept a scholarship from the Qatar Foundation and move to Qatar.

🔗 Psychology

The psychology of music preference refers to the psychological factors behind peoples' different music preferences. Music is heard by people daily in many parts of the world, and affects people in various ways from emotion regulation to cognitive development, along with providing a means for self-expression. Music training has been shown to help improve intellectual development and ability, though no connection has been found as to how it affects emotion regulation. Numerous studies have been conducted to show that individual personality can have an effect on music preference, mostly using personality, though a recent meta-analysis has shown that personality in itself explains little variance in music preferences. These studies are not limited to American culture, as they have been conducted with significant results in countries all over the world, including Japan, Germany, and Spain.

🔗 Military history 🔗 Military history/Military science, technology, and theory 🔗 Military history/Weaponry 🔗 Military history/World War II 🔗 Military history/Military land vehicles 🔗 Military history/European military history 🔗 Military history/British military history

The Canal Defence Light (CDL) was a British "secret weapon" of the Second World War.

It was based upon the use of a powerful carbon-arc searchlight mounted on a tank. It was intended to be used during night-time attacks, when the light would allow enemy positions to be targeted. A secondary use of the light would be to dazzle and disorient enemy troops, making it harder for them to return fire accurately. The name Canal Defence Light was used to conceal the device's true purpose. For the same reason, in US service they were designated T10 Shop Tractor.

🔗 Telecommunications

The Better Approach to Mobile Ad-hoc Networking (B.A.T.M.A.N.) is a routing protocol for multi-hop mobile ad hoc networks which is under development by the German "Freifunk" community and intended to replace the Optimized Link State Routing Protocol (OLSR).

B.A.T.M.A.N.'s crucial point is the decentralization of knowledge about the best route through the network — no single node has all the data. This technique eliminates the need to spread information about network changes to every node in the network. The individual node only saves information about the "direction" it received data from and sends its data accordingly. The data gets passed from node to node, and packets get individual, dynamically created routes. A network of collective intelligence is created.

In early 2007, the B.A.T.M.A.N. developers started experimenting with the idea of routing on layer 2 (Ethernet layer) instead of layer 3. To differentiate from the layer 3 routing daemon, the suffix "adv" (for: advanced) was chosen. Instead of manipulating routing tables based on information exchanged via UDP/IP, it provides a virtual network interface and transparently transports Ethernet packets on its own. The batman-adv kernel module has been part of the official Linux kernel since 2.6.38.

🔗 Physics

In the philosophy of thermal and statistical physics, the Brownian ratchet or Feynman–Smoluchowski ratchet is an apparent perpetual motion machine of the second kind, first analysed in 1912 as a thought experiment by Polish physicist Marian Smoluchowski. It was popularised by American Nobel laureate physicist Richard Feynman in a physics lecture at the California Institute of Technology on May 11, 1962, during his Messenger Lectures series The Character of Physical Law in Cornell University in 1964 and in his text The Feynman Lectures on Physics as an illustration of the laws of thermodynamics. The simple machine, consisting of a tiny paddle wheel and a ratchet, appears to be an example of a Maxwell's demon, able to extract mechanical work from random fluctuations (heat) in a system at thermal equilibrium, in violation of the second law of thermodynamics. Detailed analysis by Feynman and others showed why it cannot actually do this.