Have a deep view into what people are curious about.

🔗 Computing 🔗 Computing/Software 🔗 Numismatics 🔗 Numismatics/Cryptocurrency 🔗 Cryptocurrency

Gridcoin (ticker: GRC) is an open source cryptocurrency which securely rewards volunteer computing performed on the BOINC, a distributed computing platform that is home to over 30 science projects spanning a range of scientific disciplines.

Gridcoin attempts to address and ease the environmental energy impact of cryptocurrency mining through its proof-of-research and proof-of-stake protocols, as compared to the proof of work system used by Bitcoin.

🔗 Norway

Uniquely, the Norwegian archipelago of Svalbard, located in the High Arctic, is an entirely visa-free zone. However, travelers who have a visa requirement to enter mainland Norway/the Schengen area must have a Schengen visa if they travel via mainland Norway/the Schengen area. This must be a double-entry visa so they can return to mainland Norway/the Schengen area.

Those traveling to and from Svalbard must bring passports or national identity cards, as all are subject to identity check. Passports or national identity cards satisfy the Schengen regulatory requirements for identity verification. Due to a transitional arrangement, Norwegian citizens could also prove their identity with a document issued in Norway which included at least name, photo and date of birth, such as a Norwegian driving licence issued after 1998; the transitional period ended on 31 December 2021.

Everybody may live and work in Svalbard indefinitely regardless of country of citizenship. The Svalbard Treaty grants treaty nationals equal right of abode as Norwegian nationals. Non-treaty nationals may live and work indefinitely visa-free as well. Per Sefland, then Governor of Svalbard, said "It has been a chosen policy so far that we haven't made any difference between the treaty citizens and those from outside the treaty". "Regulations concerning rejection and expulsion from Svalbard" are enforced on a non-discriminatory basis. Grounds for exclusion include lack of means of support, and violation of laws or regulations.

Hans-Henrik Hartmann, then head of the legal unit at the Norwegian government's immigration department, said, "If an asylum seeker is refused residence in Norway he can settle in Svalbard so long as he can get there and is able to pay for himself." Svalbard has a high cost of living, but only a limited welfare system. Welfare and health care is available only for Norwegians and for workers employed by a Norwegian company.

The Norwegian Nationality Act applies to Svalbard, cf. Section 1. However, the Act does not provide any special rules for foreign nationals residing on Svalbard. Foreigners living on Svalbard must meet the conditions of the law to obtain Norwegian citizenship. In order to acquire Norwegian citizenship upon application, there is, according to the main rule, a requirement to fulfill the conditions for a permanent residence permit, and consequently a requirement for residence on the Norwegian mainland with a residence permit. Such permits are granted in accordance with the Norwegian Immigration Act. Because the Norwegian Immigration Act does not apply to Svalbard, cf. Section 6, residence on Svalbard does not qualify foreign nationals for residence permits on the Norwegian mainland.

🔗 United States 🔗 Film 🔗 Library of Congress 🔗 Film/American cinema 🔗 Film/Silent films 🔗 Film/Documentary films 🔗 United States/Film - American cinema

A Trip Down Market Street is a 13-minute actuality film recorded by placing a movie camera on the front of a cable car as it traveled down San Francisco’s Market Street. The film shows many details of daily life in a major early 20th century American city, including the transportation, fashions and architecture of the era. The film begins at 8th Street and continues eastward to the cable car turntable, at The Embarcadero, in front of the Ferry Building. Landmarks passed in the latter part of the first half include the Call Building (then San Francisco's tallest) and the Palace Hotel (both on the right; Lotta's Fountain is on the left between the two but is in the shade). The film was produced by the four Miles brothers: Harry, Herbert, Earle and Joe. It is notable for capturing San Francisco four days before the 1906 San Francisco earthquake, which started on the morning of Wednesday, April 18, 1906.

The Miles brothers had been producing films in New York including films shot in San Francisco. In September 1905 they shot the fight between Oscar "Battling" Nelson and Jimmy Britt in Colma, California, just south of San Francisco city limits. The Miles brothers established a studio at 1139 Market Street in San Francisco in early 1906. They shot a railroad descent down Mount Tamalpais as well as the Market Street film. On April 17, Harry and Joe Miles boarded a train for New York, taking the two films with them, but they heard about the earthquake and sent the films to New York while they boarded another train headed back to San Francisco. The Turk Street house of Earle Miles survived the earthquake and subsequent catastrophic fire but the studio did not. The Miles brothers based their business out of Earle's home, and shot more film of post-earthquake scenes; some of this footage, including that of a second trip down a now devastated Market Street, reemerged in 2016. It is likely that the Market Street film survives today because it was sent away before the fire.

Several 35mm prints exist with slight changes in footage. Copies are held at the Library of Congress and the Prelinger Archives. A digital version is viewable online at Internet Archive, YouTube and Wikimedia Commons. In 2010, the film was selected for preservation in the National Film Registry by the Library of Congress.

🔗 Computing

A stack-oriented programming language is one that relies on a stack machine model for passing parameters. Several programming languages fit this description, notably Forth, RPL, PostScript, BibTeX style design language and many assembly languages (on a much lower level).

Stack-oriented languages operate on one or more stacks, each of which may serve a different purpose. Thus, programming constructs in other programming languages may need to be modified for use in a stack-oriented system. Further, some stack-oriented languages operate in postfix or Reverse Polish notation, that is, any arguments or parameters for a command are stated before that command. For example, postfix notation would be written 2, 3, multiply instead of multiply, 2, 3 (prefix or Polish notation), or 2 multiply 3 (infix notation).

🔗 Skepticism 🔗 Psychology 🔗 Equine

Clever Hans (in German: der Kluge Hans) was an Orlov Trotter horse that was claimed to have performed arithmetic and other intellectual tasks.

After a formal investigation in 1907, psychologist Oskar Pfungst demonstrated that the horse was not actually performing these mental tasks, but was watching the reactions of his trainer. He discovered this artifact in the research methodology, wherein the horse was responding directly to involuntary cues in the body language of the human trainer, who had the faculties to solve each problem. The trainer was entirely unaware that he was providing such cues. In honour of Pfungst's study, the anomalous artifact has since been referred to as the Clever Hans effect and has continued to be important knowledge in the observer-expectancy effect and later studies in animal cognition. Pfungst was an assistant to German philosopher and psychologist Carl Stumpf, who incorporated the experience with Hans into his further work on animal psychology and his ideas on phenomenology.

🔗 Shopping Centers 🔗 Zimbabwe

The Eastgate Centre is a shopping centre and office block in central Harare, Zimbabwe whose architect is Mick Pearce. Designed to be ventilated and cooled by entirely natural means, it was probably the first building in the world to use natural cooling to this level of sophistication. It opened in 1996 on Robert Mugabe Avenue and Second Street, and provides 5,600 m² of retail space, 26,000 m² of office space and parking for 450 cars.

🔗 Food and drink 🔗 Japan

Toilet meal (Japanese: 便所飯, benjo-meshi) is a Japanese slang term and social phenomenon referring to the act of an individual eating a meal in a toilet room. In modern Japan, some people eat alone in a bathroom for various reasons; the most common reason is that they do not wish to be seen eating alone. Other reasons include saving money from eating out, to hide from co-workers in a busy workplace, or simply because they find it more comfortable.

Since toilet meals are often solitary and clandestine, others are unlikely to be aware of its occurrence. For this reason, "toilet meals" were initially regarded as an urban legend, but subsequent investigations have confirmed the phenomenon as relatively widespread. The term "toilet meal" has even been referenced in various popular media, most notably in various Japanese television shows.

🔗 Mathematics

The probabilistic method is a nonconstructive method, primarily used in combinatorics and pioneered by Paul Erdős, for proving the existence of a prescribed kind of mathematical object. It works by showing that if one randomly chooses objects from a specified class, the probability that the result is of the prescribed kind is strictly greater than zero. Although the proof uses probability, the final conclusion is determined for certain, without any possible error.

This method has now been applied to other areas of mathematics such as number theory, linear algebra, and real analysis, as well as in computer science (e.g. randomized rounding), and information theory.

🔗 Computing 🔗 Computing/Networking

Internet 0 is a low-speed physical layer designed to route 'IP over anything.' It was developed at MIT's Center for Bits and Atoms by Neil Gershenfeld, Raffi Krikorian, and Danny Cohen. When it was invented, a number of other proposals were being labelled as "internet 2." The name was chosen to emphasize that this was designed to be a slow, but very inexpensive internetworking system, and forestall "high-performance" comparison questions such as "how fast is it?"

Effectively, it would enable a platform for pervasive computing -- everything in a building could be on the same network to share data gathering and actuation. A light switch could turn on a light bulb by sending a packet to it, they can be linked together by the user.