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🔗 54% of adults in the United States have prose literacy below the 6th-grade level
A 2019 report by the National Center for Education Statistics determined that mid to high literacy in the United States is 79% with 21% of American adults categorized as having "low level English literacy," including 4.1% classified as "functionally illiterate" and an additional 4% that could not participate. According to the U.S. Department of Education, 54% of adults in the United States have prose literacy below the 6th-grade level.
In many nations, the ability to read a simple sentence suffices as literacy, and was the previous standard for the U.S. The definition of literacy has changed greatly; the term is presently defined as the ability to use printed and written information to function in society, to achieve one's goals, and to develop one's knowledge and potential.
The United States Department of Education assesses literacy in the general population through its National Assessment of Adult Literacy (NAAL). The NAAL survey defines three types of literacy:
- prose literacy: the knowledge and skills needed to search, comprehend, and use continuous texts. Examples include editorials, news stories, brochures, and instructional materials.
- document literacy: the knowledge and skills needed to search, comprehend, and use non-continuous texts in various formats. Examples include job applications, payroll forms, transportation schedules, maps, tables, and drug and food labels.
- quantitative literacy: the knowledge and skills required to identify and perform computations, either alone or sequentially, using numbers embedded in printed materials. Examples include balancing a checkbook, figuring out tips, completing an order form, or determining an amount.
Modern jobs often demand a high level of literacy, and its lack in adults and adolescents has been studied extensively.
According to a 1992 survey, about 40 million adults had Level 1 literary competency, the lowest level, comprising understanding only basic written instructions. A number of reports and studies are published annually to monitor the nation's status, and initiatives to improve literacy rates are funded by government and external sources.
Discussed on
- "54% of adults in the United States have prose literacy below the 6th-grade level" | 2021-12-29 | 166 Upvotes 207 Comments
🔗 Nikon F-Mount
The Nikon F-mount is a type of interchangeable lens mount developed by Nikon for its 35mm format single-lens reflex cameras. The F-mount was first introduced on the Nikon F camera in 1959, and features a three-lug bayonet mount with a 44Â mm throat and a flange to focal plane distance of 46.5Â mm. The company continues, with the 2020 D6 model, to use variations of the same lens mount specification for its film and digital SLR cameras.
Discussed on
- "Nikon F-Mount" | 2021-12-28 | 33 Upvotes 78 Comments
🔗 FRACTRAN
FRACTRAN is a Turing-complete esoteric programming language invented by the mathematician John Conway. A FRACTRAN program is an ordered list of positive fractions together with an initial positive integer input n. The program is run by updating the integer n as follows:
- for the first fraction f in the list for which nf is an integer, replace n by nf
- repeat this rule until no fraction in the list produces an integer when multiplied by n, then halt.
Conway 1987 gives the following formula for primes in FRACTRAN:
Starting with n=2, this FRACTRAN program generates the following sequence of integers:
- 2, 15, 825, 725, 1925, 2275, 425, 390, 330, 290, 770, ... (sequence A007542 in the OEIS)
After 2, this sequence contains the following powers of 2:
- (sequence A034785 in the OEIS)
which are the prime powers of 2.
Discussed on
- "FRACTRAN" | 2017-04-26 | 82 Upvotes 8 Comments
🔗 Time formatting and storage bugs
In computer science, time formatting and storage bugs are a class of software bugs which may cause time and date calculation or display to be improperly handled. These are most commonly manifestations of arithmetic overflow, but can also be the result of other issues. The most well-known consequence of bugs of this type is the Y2K problem, but many other milestone dates or times exist that have caused or will cause problems depending on various programming deficiencies.
Discussed on
- "Time formatting and storage bugs" | 2021-12-26 | 47 Upvotes 2 Comments
🔗 London Beer Flood of 1814
The London Beer Flood was an accident at Meux & Co's Horse Shoe Brewery, London, on 17 October 1814. It took place when one of the 22-foot-tall (6.7 m) wooden vats of fermenting porter burst. The pressure of the escaping liquid dislodged the valve of another vessel and destroyed several large barrels: between 128,000 and 323,000 imperial gallons (580,000–1,470,000 L; 154,000–388,000 US gal) of beer were released in total.
The resulting wave of porter destroyed the back wall of the brewery and swept into an area of slum dwellings known as the St Giles rookery. Eight people were killed, five of them mourners at the wake being held by an Irish family for a two-year-old boy. The coroner's inquest returned a verdict that the eight had lost their lives "casually, accidentally and by misfortune". The brewery was nearly bankrupted by the event; it avoided collapse after a rebate from HM Excise on the lost beer. The brewing industry gradually stopped using large wooden vats after the accident. The brewery moved in 1921, and the Dominion Theatre is now where the brewery used to stand. Meux & Co went into liquidation in 1961.
Discussed on
- "London Beer Flood of 1814" | 2021-12-24 | 91 Upvotes 24 Comments
🔗 Greenspun's Tenth Rule
Greenspun's tenth rule of programming is an aphorism in computer programming and especially programming language circles that states:
Any sufficiently complicated C or Fortran program contains an ad hoc, informally-specified, bug-ridden, slow implementation of half of Common Lisp.
Discussed on
- "Greenspun's Tenth Rule of Programming" | 2021-12-24 | 32 Upvotes 10 Comments
- "Greenspun's Tenth Rule" | 2011-08-06 | 13 Upvotes 3 Comments
🔗 Rosemary Kennedy
Rose Marie "Rosemary" Kennedy (September 13, 1918 – January 7, 2005) was the eldest daughter born to Joseph P. Kennedy Sr. and Rose Fitzgerald Kennedy. She was a sister of President John F. Kennedy and Senators Robert F. and Ted Kennedy.
In her early young adult years, Rosemary Kennedy experienced seizures and violent mood swings. In response to these issues, her father arranged a prefrontal lobotomy for her in 1941 when she was 23 years of age; the procedure left her permanently incapacitated and rendered her unable to speak intelligibly.
Rosemary Kennedy spent most of the rest of her life being cared for at St. Coletta, an institution in Jefferson, Wisconsin. The truth about her situation and whereabouts was kept secret for decades. While she was initially isolated from her siblings and extended family following her lobotomy, Rosemary did go on to visit them during her later life.
🔗 The Indian state of Kerala has a communist government and India's highest HDI
Communism in Kerala refers to the strong presence of communist ideas in the Indian state of Kerala. In addition to Kerala, the Indian states of West Bengal and Tripura have had multiple democratically elected Marxist governments, and change takes place in the government by regular multiparty electoral processes. Communism of Kerala has provided Indian communist stalwarts such as M. N. Govindan Nair, C. Achutha Menon, K. Damodaran, T. V. Thomas, N. E. Balaram, E. M. S. Namboodiripad, A. K. Gopalan, K. R. Gouri Amma, P. K. Vasudevan Nair and C. K. Chandrappan
Today the two largest communist parties in Kerala politics are the Communist Party of India (Marxist) and the Communist Party of India. The Left Democratic Front is a coalition of left-wing political parties in the state of Kerala and is one of the two major political coalitions in Kerala, each of which have been in power alternatively for the last two decades. The coalition led by the Communist Party of India (Marxist) consists of the Communist Party of India, the Janata Dal (Secular), the Nationalist Congress Party, the Indian National League, the Kerala Congress (Anti-merger Group), and the Indian National Congress (Socialist).
Discussed on
- "The Indian state of Kerala has a communist government and India's highest HDI" | 2021-12-22 | 15 Upvotes 5 Comments
🔗 Rocky Mountain Basic
Rocky Mountain BASIC (also RMB or RM-BASIC) is a dialect of the BASIC programming language created by Hewlett-Packard. It was especially popular for control of automatic test equipment using GPIB. It has several features which are or were unusual in BASIC dialects, such as event-driven operation, extensive external I/O support, complex number support, and matrix manipulation functions. Today, RMB is mainly used in environments where an investment in RMB software, hardware, or expertise already exists.
Discussed on
- "Rocky Mountain Basic" | 2021-12-22 | 55 Upvotes 22 Comments
🔗 Death by Coconut
Coconuts falling from their trees and striking individuals can cause serious injury to the back, neck, shoulders and head, and are occasionally fatal.
Following a 1984 study on "Injuries Due to Falling Coconuts", exaggerated claims spread concerning the number of deaths by falling coconuts. Falling coconuts, according to urban legend, kill a few people a year. This legend gained momentum after the 2002 work of a noted expert on shark attacks was characterized as saying that falling coconuts kill 150 people each year worldwide. This statistic has often been contrasted with the number of shark-caused deaths per year, which is around five.
Concern about the risk of fatality due to falling coconuts led local officials in Queensland, Australia, to remove coconut trees from beaches in 2002. One newspaper dubbed coconuts "the killer fruit". Historical reports of actual death by coconut nonetheless date back to the 1770s.
Another way to "die by coconut" is to suffer sudden cardiac death as a result of hyperkalemia, after consuming moderate to large quantities of coconut water, due to the high levels of potassium in coconut water.
Discussed on
- "Death by Coconut" | 2021-12-21 | 107 Upvotes 80 Comments