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🔗 Italy 🔗 Rivers 🔗 Rivers/Waterfalls

The Cascata delle Marmore (Italian: [kaˈskaːta delle ˈmarmore]) or Marmore Falls is a tiered, man-made waterfall in Italy, created by the Romans in 271 BC. At 165m (541 feet) tall, it is the largest man-made waterfall in the world. It is located 7.7 km from Terni, in the region of Umbria.

🔗 Computing 🔗 Computing/Software 🔗 Computing/Amiga

Amiga Unix (informally known as Amix) is a discontinued full port of AT&T Unix System V Release 4 operating system developed by Commodore-Amiga, Inc. in 1990 for the Amiga computer family as an alternative to AmigaOS, which shipped by default. Bundled with the Amiga 3000UX, Commodore's Unix was one of the first ports of SVR4 to the 68k architecture. The Amiga A3000UX model even got the attention of Sun Microsystems, though ultimately nothing came of it.

Unlike Apple's A/UX, Amiga Unix contained no compatibility layer to allow AmigaOS applications to run under Unix. With few native applications available to take advantage of the Amiga's significant multimedia capabilities, it failed to find a niche in the quite-competitive Unix workstation market of the early 1990s. The A3000UX's price tag of $4,998 (equivalent to $9,382 in 2019) was also not very attractive compared to other Unix workstations at the time, such as the NeXTstation ($5,000 for a base system, with a full API and many times the number of applications available), the SGI Indigo (starting at $8,000), or the Personal DECstation 5000 Model 25 (starting at $5,000). Sun, HP, and IBM had similarly priced systems. The A3000UX's 68030 was noticeably underpowered compared to most of its RISC-based competitors.

Unlike typical commercial Unix distributions of the time, Amiga Unix included the source code to the vendor-specific enhancements and platform-dependent device drivers (essentially any part that wasn't owned by AT&T), allowing interested users to study or enhance those parts of the system. However this source code was subject to the same license terms as the binary part of the system – it was not free software. Amiga Unix also incorporated and depended upon many open source components, such as the GNU C Compiler and X Window System, and included their source code.

Like many other proprietary Unix variants with small market shares, Amiga Unix vanished into the mists of computer history when its vendor, Commodore, went out of business. Today, Unix-like operating systems such as Minix, NetBSD, and Linux are available for the Amiga platform.

🔗 Australia 🔗 Animals 🔗 Australia/Australian biota 🔗 Cephalopods

Octopolis and Octlantis are two separate non-human underwater settlements built by the gloomy octopuses. The first settlement, named Octopolis by biologists, was found in 2009. The individual structures in Octopolis consist of burrows around a piece of scrap metal. In 2016, a second settlement was found, named Octlantis, which instead of burrows, has dens and is built with seashells.

🔗 Writing systems

Sütterlinschrift (German pronunciation: [ˈzʏtɐliːnˌʃʁɪft], "Sütterlin script") is the last widely used form of Kurrent, the historical form of German handwriting that evolved alongside German blackletter (most notably Fraktur) typefaces. Graphic artist Ludwig Sütterlin was commissioned by the Prussian Ministry of Science, Art and Culture (Preußisches Ministerium für Wissenschaft, Kunst und Volksbildung) to create a modern handwriting script in 1911. His handwriting scheme gradually replaced the older cursive scripts that had developed in the 16th century at the same time that letters in books had developed into Fraktur. The name Sütterlin is nowadays often used to refer to all varieties of old German handwriting, although only this specific script was taught in all German schools from 1915 to 1941.

🔗 Germany 🔗 Africa 🔗 Birds 🔗 European history

The term Pfeilstorch (German for "arrow stork") is given to storks injured by an arrow while wintering in Africa, before returning to Europe with the arrow stuck in their bodies. To date, around 25 Pfeilstörche have been documented.

The first and most famous Pfeilstorch was a white stork found in 1822 near the German village of Klütz, in the state of Mecklenburg-Vorpommern. It was carrying a 30-inch (76 cm) spear from central Africa in its neck. The specimen was stuffed and can be seen today in the zoological collection of the University of Rostock. It is therefore referred to as the Rostocker Pfeilstorch.

This Pfeilstorch was crucial in understanding the migration of European birds. Before migration was understood, people struggled to explain the sudden annual disappearance of birds like the white stork and barn swallow. Besides migration, some theories of the time held that they turned into other kinds of birds, mice, or hibernated underwater during the winter, and such theories were even propagated by zoologists of the time. The Rostocker Pfeilstorch in particular proved that birds migrate long distances to wintering grounds.

🔗 Plants

Cyclanthera brachystachya, the exploding cucumber (but not to be confused with Ecballium elaterium), in the cucurbit or gourd family (Cucurbitaceae), is a herbaceous vine usually grown for its curiosity value, but the fruit is also edible.

🔗 Sociology

In sociology and economics, the precariat () is a social class formed by people suffering from precarity, which means existing without predictability or security, affecting material or psychological welfare. The term is a portmanteau merging precarious with proletariat.

Unlike the proletariat class of industrial workers in the 20th century who lacked their own means of production and hence sold their labor to live, members of the precariat are only partially involved in labor and must undertake extensive unremunerated activities that are essential if they are to retain access to jobs and to decent earnings. Classic examples of such unpaid activities include continually having to search for work (including preparing for and attending job interviews), as well as being expected to be perpetually responsive to calls for "gig" work (yet without being paid an actual wage for being "on call").

The hallmark of the precariat class is the condition of lack of job security, including intermittent employment or underemployment and the resultant precarious existence. The emergence of this class has been ascribed to the entrenchment of neoliberal capitalism.

🔗 France 🔗 Military history 🔗 Architecture 🔗 Military history/Fortifications 🔗 Military history/French military history 🔗 Archaeology 🔗 Military history/Medieval warfare 🔗 Metalworking 🔗 Military history/European military history 🔗 Woodworking

Guédelon Castle (Château de Guédelon) is a castle currently under construction near Treigny, France. The castle is the focus of an experimental archaeology project aimed at recreating a 13th-century castle and its environment using period technique, dress, and material.

In order to fully investigate the technology required in the past, the project is using only period construction techniques, tools, and costumes. Materials, including wood and stone, are all obtained locally. Jacques Moulin, chief architect for the project, designed the castle according to the architectural model developed during the 12th and 13th centuries by Philip II of France.

Construction started in 1997 under Michel Guyot, owner of Château de Saint-Fargeau, a castle in Saint-Fargeau 13 kilometres away. The site was chosen according to the availability of construction materials: an abandoned stone quarry, in a large forest, with a nearby pond. The site is in a rural woodland area and the nearest town is Saint-Sauveur-en-Puisaye, about 5 kilometres (3.1 mi) to the northeast.

🔗 Statistics 🔗 Books

How to Lie with Statistics is a book written by Darrell Huff in 1954, presenting an introduction to statistics for the general reader. Not a statistician, Huff was a journalist who wrote many how-to articles as a freelancer.

The book is a brief, breezy illustrated volume outlining the misuse of statistics and errors in the interpretation of statistics, and how errors create incorrect conclusions.

In the 1960s and 1970s, it became a standard textbook introduction to the subject of statistics for many college students. It has become one of the best-selling statistics books in history, with over one and a half million copies sold in the English-language edition. It has also been widely translated.

Themes of the book include "Correlation does not imply causation" and "Using random sampling." It also shows how statistical graphs can be used to distort reality. For example, by truncating the bottom of a line or bar chart so that differences seem larger than they are. Or, by representing one-dimensional quantities on a pictogram by two- or three-dimensional objects to compare their sizes so that the reader forgets that the images do not scale the same way the quantities do.

The original edition contained illustrations by artist Irving Geis. In a UK edition, Geis' illustrations were replaced by cartoons by Mel Calman.

🔗 United States 🔗 California 🔗 Companies 🔗 California/San Francisco Bay Area 🔗 Internet 🔗 Internet culture 🔗 Business 🔗 Crime and Criminal Biography

The eBay stalking scandal was a campaign conducted in 2019 by eBay and contractors. The scandal involved the aggressive stalking and harassment of two e-commerce bloggers, Ina and David Steiner, who wrote frequent commentary about eBay on their website EcommerceBytes. Seven eBay employees pleaded guilty to charges involving criminal conspiracies. The seven employees included two senior members of eBay’s corporate security team. Two members of eBay's Executive Leadership Team who were implicated in the scandal were not charged.