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🔗 Old Tjikko, the oldest living clonal Norway Spruce
Old Tjikko is a 9,550 year-old Norway Spruce, located on Fulufjället Mountain of Dalarna province in Sweden. Old Tjikko originally gained fame as the "world's oldest tree." Old Tjikko is, however, a clonal tree that has regenerated new trunks, branches and roots over millennia rather than an individual tree of great age. Old Tjikko is recognized as the oldest living Picea abies and the third oldest known clonal tree.
The age of the tree was determined by carbon dating of genetically matched plant material collected from under the tree, as dendrochronology would cause damage. The trunk itself is estimated to be only a few hundred years old, but the plant has survived for much longer due to a process known as layering (when a branch comes in contact with the ground, it sprouts a new root), or vegetative cloning (when the trunk dies but the root system is still alive, it may sprout a new trunk).
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- "Old Tjikko, the oldest living clonal Norway Spruce" | 2016-02-08 | 98 Upvotes 26 Comments
🔗 List of countries by tax rates
A comparison of tax rates by countries is difficult and somewhat subjective, as tax laws in most countries are extremely complex and the tax burden falls differently on different groups in each country and sub-national unit. The list focuses on the main indicative types of taxes: corporate tax, individual income tax, and sales tax, including VAT and GST, but does not list capital gains tax.
Some other taxes (for instance property tax, substantial in many countries, such as the United States) and payroll tax are not shown here. The table is not exhaustive in representing the true tax burden to either the corporation or the individual in the listed country. The tax rates displayed are marginal and do not account for deductions, exemptions or rebates. The effective rate is usually lower than the marginal rate. The tax rates given for federations (such as the United States and Canada) are averages and vary depending on the state or province. Territories that have different rates to their respective nation are in italics.
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- "List of countries by tax rates" | 2016-10-10 | 25 Upvotes 13 Comments
🔗 Flâneur
Flâneur (French: [flɑnœʁ]) is a French term popularized in the nineteenth-century for a type of urban male "stroller", "lounger", "saunterer", or "loafer". The word has some nuanced additional meanings (including as a loanword into English). Traditionally depicted as male, a flâneur is an ambivalent figure of urban affluence and modernity, representing the ability to wander detached from society with no other purpose than to be an acute observer of industrialized, contemporary life. Flânerie is the act of strolling, with all of its accompanying associations. A near-synonym of the noun is boulevardier.
The flâneur was first a literary type from 19th-century France, essential to any picture of the streets of Paris. The word carried a set of rich associations: the man of leisure, the idler, the urban explorer, the connoisseur of the street. However, the flâneur's origins are to be found in journalism of the Restoration, and the politics of post-revolutionary public space. Drawing on the work of Charles Baudelaire who described the flâneur in his poetry and 1863 essay "The Painter of Modern Life", Walter Benjamin promoted 20th-century scholarly interest in the flâneur as an emblematic archetype of urban, modern (even modernist) experience. Following Benjamin, the flâneur has become an important symbol for scholars, artists, and writers. The classic French female counterpart is the passante, dating to the works of Marcel Proust, though a 21st-century academic coinage is flâneuse, and some English-language writers simply apply the masculine flâneur also to women. The term has acquired an additional architecture and urban planning sense, referring to passers-by who experience incidental or intentional psychological effects from the design of a structure.
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- "Flâneur" | 2024-04-17 | 30 Upvotes 12 Comments
🔗 RTX2010 radiation-hardened microprocessor
The RTX2010 manufactured by Intersil is a radiation hardened stack machine microprocessor which has been used in numerous spacecraft.
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- "RTX2010 – Radiation-hardened stack machine microprocessor" | 2014-11-15 | 156 Upvotes 60 Comments
- "RTX2010 radiation-hardened microprocessor" | 2014-11-14 | 11 Upvotes 5 Comments
🔗 Sea Peoples
The Sea Peoples are a purported seafaring confederation that attacked ancient Egypt and other regions of the East Mediterranean prior to and during the Late Bronze Age collapse (1200–900 BCE). Following the creation of the concept in the nineteenth century, it became one of the most famous chapters of Egyptian history, given its connection with, in the words of Wilhelm Max Müller: "the most important questions of ethnography and the primitive history of classic nations". Their origins undocumented, the various Sea Peoples have been proposed to have originated from places that include western Asia Minor, the Aegean, the Mediterranean islands and Southern Europe. Although the archaeological inscriptions do not include reference to a migration, the Sea Peoples are conjectured to have sailed around the eastern Mediterranean and invaded Anatolia, Syria, Phoenicia, Canaan, Cyprus and Egypt toward the end of the Bronze Age.
French Egyptologist Emmanuel de Rougé first used the term peuples de la mer (literally "peoples of the sea") in 1855 in a description of reliefs on the Second Pylon at Medinet Habu documenting Year 8 of Ramesses III. Gaston Maspero, de Rougé's successor at the Collège de France, subsequently popularized the term "Sea Peoples" — and an associated migration-theory — in the late 19th century. Since the early 1990s, his migration theory has been brought into question by a number of scholars.
The Sea Peoples remain unidentified in the eyes of most modern scholars and hypotheses regarding the origin of the various groups are the source of much speculation. Existing theories variously propose equating them with several Aegean tribes, raiders from Central Europe, scattered soldiers who turned to piracy or who had become refugees, and links with natural disasters such as earthquakes or climatic shifts.
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- "Sea Peoples" | 2023-08-08 | 33 Upvotes 3 Comments
- "Sea Peoples" | 2017-07-10 | 69 Upvotes 23 Comments
🔗 ST3000DM001
The ST3000DM001 is a hard disk drive released by Seagate Technology in 2011 as part of the Seagate Barracuda series. It has a capacity of 3 terabytes (TB) and a spindle speed of 7200 RPM. This particular drive model was reported to have unusually high failure rates, approximately 5.7 times higher fail rates in comparison to other 3 TB drives.
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- "ST3000DM001" | 2021-06-07 | 270 Upvotes 250 Comments
🔗 Don't Mess with Texas
Don't Mess with Texas is a slogan for a campaign aimed at reducing littering on Texas roadways by the Texas Department of Transportation. The phrase "Don't Mess with Texas" is prominently shown on road signs on major highways, television, radio and in print advertisements. The campaign is credited with reducing litter on Texas highways roughly 72% between 1987 and 1990. The campaign's target market was 18- to 35-year-old males, which was statistically shown to be the most likely to litter. While the slogan was not originally intended to become a statewide cultural phenomenon, it did.
Beyond its immediate role in reducing litter, the slogan has been popularly appropriated by Texans. The phrase has become "an identity statement, a declaration of Texas swagger". Though the origin of the slogan is not well known outside of Texas, it appears on countless items of tourist souvenirs. Since the phrase is a federally registered trademark, the department has tried at times to enforce its trademark rights with cease and desist letters, but has had very limited success. The slogan is the title of the book, Don’t Mess With Texas: The Story Behind the Legend.
"Don't Mess with Texas" has been awarded a plaque on the Madison Avenue Walk of Fame and a place in the Advertising Hall of Fame, a distinction given to only two slogans annually.
"Don't Mess with Texas" is also the official motto of the Virginia-class submarine USS Texas.
In 2011 the result of a public vote for the best "Don't Mess with Texas" ad over the last 25 was revealed, the winner was one created by the Commemorative Air Force (then called the Confederate Air Force). The ad involved the CAF's Boeing B-17 "Sentimental Journey" pursuing and retaliating against a truck from which trash was thrown.
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- "Don't Mess with Texas" | 2020-04-21 | 218 Upvotes 190 Comments
🔗 Nvidia’s CEO Is the Uncle of AMD’s CEO
Lisa Su (Chinese: 蘇姿丰; Pe̍h-ōe-jī: So͘ Chu-hong; born 7 November 1969) is a Taiwanese-born American business executive and electrical engineer, who is the president, chief executive officer and chair of AMD. Early in her career, Su worked at Texas Instruments, IBM, and Freescale Semiconductor in engineering and management positions. She is known for her work developing silicon-on-insulator semiconductor manufacturing technologies and more efficient semiconductor chips during her time as vice president of IBM's Semiconductor Research and Development Center.
Su was appointed president and CEO of AMD in October 2014, after joining the company in 2012 and holding roles such as senior vice president of AMD's global business units and chief operating officer. She currently serves on the boards of Cisco Systems, Global Semiconductor Alliance and the U.S. Semiconductor Industry Association, and is a fellow of the Institute of Electrical and Electronics Engineers (IEEE). Recognized with a number of awards and accolades, she was named Executive of the Year by EE Times in 2014 and one of the World's Greatest Leaders in 2017 by Fortune. She became the first woman to receive the IEEE Robert Noyce Medal in 2021.
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- "Nvidia’s CEO Is the Uncle of AMD’s CEO" | 2023-08-01 | 158 Upvotes 174 Comments
🔗 The Diolkos: an ancient Greek paved trackway enabling boats to be moved overland
The Diolkos (Δίολκος, from the Greek διά, dia "across" and ὁλκός, holkos "portage machine") was a paved trackway near Corinth in Ancient Greece which enabled boats to be moved overland across the Isthmus of Corinth. The shortcut allowed ancient vessels to avoid the long and dangerous circumnavigation of the Peloponnese peninsula. The phrase "as fast as a Corinthian", penned by the comic playwright Aristophanes, indicates that the trackway was common knowledge and had acquired a reputation for swiftness.
The main function of the Diolkos was the transfer of goods, although in times of war it also became a preferred means of speeding up naval campaigns. The 6 km (3.7 mi) to 8.5 km (5.3 mi) long roadway was a rudimentary form of railway, and operated from c. 600 BC until the middle of the 1st century AD. The scale on which the Diolkos combined the two principles of the railway and the overland transport of ships remained unique in antiquity.
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- "Diolkos" | 2020-10-21 | 167 Upvotes 28 Comments
- "The Diolkos: an ancient Greek paved trackway enabling boats to be moved overland" | 2016-07-31 | 121 Upvotes 27 Comments
🔗 Gene Gun
In genetic engineering, a gene gun or biolistic particle delivery system is a device used to deliver exogenous DNA (transgenes), RNA, or protein to cells. By coating particles of a heavy metal with a gene of interest and firing these micro-projectiles into cells using mechanical force, an integration of desired genetic information can be induced into cells. The technique involved with such micro-projectile delivery of DNA is often referred to as biolistics.
This device is able to transform almost any type of cell and is not limited to the transformation of the nucleus; it can also transform organelles, including plastids and mitochondria.