doc_id
int32
18
2.25M
text
stringlengths
245
2.96k
source
stringlengths
38
44
__index_level_0__
int64
18
2.25M
1,685,760
Reaction injection molding can produce strong, flexible, lightweight parts which can easily be painted. It also has the advantage of quick cycle times compared to typical vacuum cast materials. The bi-component mixture injected into the mold has a much lower viscosity than molten thermoplastic polymers, therefore large...
https://en.wikipedia.org/wiki?curid=10880315
1,684,814
1,552,702
Reciprocity calibration is currently the favoured primary standard for calibration of measurement microphones. The technique exploits the reciprocal nature of certain transduction mechanisms such as the electrostatic transducer principle used in condenser measurement microphones. In order to carry out a reciprocity cal...
https://en.wikipedia.org/wiki?curid=28022494
1,551,821
205,190
The Oregon Trail is a text-based strategy video game developed by Don Rawitsch, Bill Heinemann, and Paul Dillenberger in 1971 and produced by the Minnesota Educational Computing Consortium (MECC) beginning in 1975. It was developed as a computer game to teach school children about the realities of 19th-century pioneer ...
https://en.wikipedia.org/wiki?curid=354015
205,084
219,423
In a series of four individual experiments involving 70 participants (mean age of 25.6) from the University of Bern community, Jaeggi et al. found that, in comparison to a demographically matched control group, healthy young adults who practiced a demanding working memory task (dual n-back) approximately 25 minutes per...
https://en.wikipedia.org/wiki?curid=850107
219,314
263,709
As the movement's first emissary to the New World, Moritz Schlick visited Stanford University in 1929, yet otherwise remained in Vienna and was murdered in 1936 at the University by a former student, Johann Nelböck, who was reportedly deranged. That year, a British attendee at some Vienna Circle meetings since 1933, A....
https://en.wikipedia.org/wiki?curid=18403
263,566
1,934,844
Mills Observatory would then receive in exchange the 10-inch (25 cm.) Cooke refracting telescope formerly used as a student training instrument and now surplus to requirements. At first the Town Council refused, and there was much correspondence in the local press, and indignation among local amateurs, that the Univers...
https://en.wikipedia.org/wiki?curid=9898493
1,933,736
1,335,607
The adrenal cortex is hyperplastic and overstimulated, with no impairment of the mineralocorticoid pathway. Consequently, levels of DOC, corticosterone, and 18-hydroxycorticosterone are elevated. Although these precursors of aldosterone are weaker mineralocorticoids, the extreme elevations usually provide enough volume...
https://en.wikipedia.org/wiki?curid=717845
1,334,877
1,485,588
During the 2010s, studies on the gene products of the "arl" operon allowed to establish the function of many of the "accessory" proteins of the archaellum, that is, proteins that compose the motor of this organelle. During this time it was possible to define a minimal set of components necessary for a mature and functi...
https://en.wikipedia.org/wiki?curid=36332456
1,484,750
1,311,189
Three different covers for "Game Informer"s first preview of the game for its October 2010 issue were collaborations between Irrational and the magazine, envisioning what a video game magazine would be like in the early 20th century. Each cover, drawn by Irrational's Rob Waters, is inspired by the cover artwork from "T...
https://en.wikipedia.org/wiki?curid=38977195
1,310,470
313,884
The number of actual Allied casualties involved was for various reasons very small compared with the intensive air fighting of 1917–18. The deployment of the Eindeckers was less than overwhelming: the new type was issued in ones and twos to existing reconnaissance squadrons, and it was to be nearly a year before the Ge...
https://en.wikipedia.org/wiki?curid=768600
313,715
490,383
Although most systems operate via delivery of a constant train of stimulation, there is now the advent of so-called "feed-forward" stimulation where the device's activation is contingent on a physiological event, such as an epileptic seizure. In this circumstance, the device is activated and delivers a desynchronizing ...
https://en.wikipedia.org/wiki?curid=40651435
490,129
81,257
In bulk, matter can exist in several different forms, or states of aggregation, known as "phases", depending on ambient pressure, temperature and volume. A phase is a form of matter that has a relatively uniform chemical composition and physical properties (such as density, specific heat, refractive index, and so forth...
https://en.wikipedia.org/wiki?curid=19673093
81,224
835,006
The Siena Complex is composed of four residence halls: Siena Primo, Siena Secondo, Siena Terzo and Siena Quarto. The complex is modeled after the Piazza del Campo, the main town center of Siena, Italy. Bellarmine's namesake, St. Robert Bellarmine, was a native of Tuscany, where Siena is. The Siena buildings were built ...
https://en.wikipedia.org/wiki?curid=394938
834,557
1,310,642
Under unified neutral theory, complex ecological interactions are permitted among individuals of an ecological community (such as competition and cooperation), providing all individuals obey the same rules. Asymmetric phenomena such as parasitism and predation are ruled out by the terms of reference; but cooperative st...
https://en.wikipedia.org/wiki?curid=30773
1,309,924
1,877,563
On the afternoon of 16 October 1918, when the Cote-de-Chatillion had just been gained after bitter fighting and the summit of that strong bulwark in the Kriemhilde Stellung was being organized, Pvt. Neibaur was sent out on patrol with his automatic rifle squad to enfilade enemy machinegun nests. As he gained the ridge ...
https://en.wikipedia.org/wiki?curid=9712163
1,876,485
101,177
The ease with which an individual can acquire an amateur radio license varies from country to country. In some countries, examinations may be offered only once or twice a year in the national capital and can be inordinately bureaucratic (for example in India) or challenging because some amateurs must undergo difficult ...
https://en.wikipedia.org/wiki?curid=23275402
101,132
9,643
The impactor's velocity was estimated at . The kinetic energy of the impact was estimated at . The impact created winds in excess of near the blast's center, and created a transient cavity wide and deep that later collapsed. This formed a crater mainly under the sea and covered by of sediment by the 21st century. The i...
https://en.wikipedia.org/wiki?curid=174609
9,639
1,233,080
In 1956, the AEC allocated of an area known as Jackass Flats in Area 25 of the Nevada Test Site for use by Project Rover. Work commenced on test facilities there in mid-1957. All materials and supplies had to be brought in from Las Vegas. Test Cell A consisted of a farm of hydrogen gas bottles and a concrete wall thick...
https://en.wikipedia.org/wiki?curid=23821416
1,232,417
591,364
The better-known genera include, for example, "Aysheaia", which was discovered in the Canadian Burgess Shale and "Hallucigenia", known from both the Chenjiang Maotianshan Shale and the Burgess Shale. "Aysheaia pedunculata" has a morphology apparently basic for lobopodians — for example, a significantly annulated cuticl...
https://en.wikipedia.org/wiki?curid=43184
591,062
722,134
Known fossils of Enantiornithes include eggs, embryos, and hatchlings. An embryo, still curled in its egg, has been reported from the Yixian Formation. Juvenile specimens can be identified by a combination of factors: rough texture of their bone tips indicating portions which were still made of cartilage at the time of...
https://en.wikipedia.org/wiki?curid=1118730
721,754
1,460,527
Sauer was born December 24, 1889 in Warrenton, Missouri, the son of German-born William Albert Sauer and Rosseta J. Vosholl. As a child he was sent to study in Germany for five years. He later attended Central Wesleyan College where his father served as the school botanist and taught music and French. The elder Sauer w...
https://en.wikipedia.org/wiki?curid=1410237
1,459,705
385,443
Since the 1960s composite material airframes and quieter, more efficient engines have become available, and Concorde provided supersonic passenger service for more than two decades, but the most important lasting innovations have taken place in instrumentation and control. The arrival of solid-state electronics, the Gl...
https://en.wikipedia.org/wiki?curid=58422
385,248
754,608
During World War II Keynes acted as adviser to HM Treasury again, negotiating major loans from the U.S., helping formulate the plans for the International Monetary Fund, the World Bank, and the International Trade Organisation at the 1944 Bretton Woods Conference, a package designed to stabilize world economy fluctuati...
https://en.wikipedia.org/wiki?curid=7881361
754,205
1,701,632
Activation of TP receptors stimulates vascular endothelial cell pro-inflammatory responses such as increased expression of cell surface adhesion proteins (i.e. ICAM-1, VCAM-1, and E-selectin); stimulates apoptosis (i.e. cell death) of CD4+ and CD8+ lymphocytes; causes the chemokinesis (i.e. cell movement) of native T c...
https://en.wikipedia.org/wiki?curid=6519036
1,700,677
34,856
The total complement of proteins present at a time in a cell or cell type is known as its proteome, and the study of such large-scale data sets defines the field of proteomics, named by analogy to the related field of genomics. Key experimental techniques in proteomics include 2D electrophoresis, which allows the separ...
https://en.wikipedia.org/wiki?curid=23634
34,844
241,950
Giant intestinal roundworms have been known since antiquity. In 1758 Linnaeus named them "Ascaris lumbricoides". For many centuries, they were thought to arise by spontaneous generation. In 1855, "Ascaris" eggs were found in human faeces by Henry Ransom in England then this was described in the literature two years lat...
https://en.wikipedia.org/wiki?curid=60209
241,824
305,122
Claude Henri de Rouvroy, comte de Saint-Simon (1760–1825) was the founder of French socialism as well as modern theoretical socialism in general. As one of the founders of positivism along with his secretary Auguste Comte, Saint-Simon sought to impose upon political science the same level of empiricism and consistency ...
https://en.wikipedia.org/wiki?curid=47246185
304,960
31,456
In humans, glucose is metabolized by glycolysis and the pentose phosphate pathway. Glycolysis is used by all living organisms, with small variations, and all organisms generate energy from the breakdown of monosaccharides. In the further course of the metabolism, it can be completely degraded via oxidative decarboxylat...
https://en.wikipedia.org/wiki?curid=12950
31,446
1,766,430
The campus has long been home to the School of Biosciences (previously School of Agriculture, School of Environmental and Life Sciences) which teaches students studying biological subjects encompassing animal science, food science, agriculture, nutrition and plant science and the University of Nottingham opened the doo...
https://en.wikipedia.org/wiki?curid=12567944
1,765,436
1,596,767
Between 2.5 and 3.0 billion years ago, cyanobacteria started using the energy from light to split water, releasing oxygen into the anaerobic, reducing environment. Parts of this ancient cyanobacterial metabolism are still maintained today. Bandyopadhyay "et al." 2011 created a phylogenic tree for cyanobacteria using 22...
https://en.wikipedia.org/wiki?curid=46182688
1,595,868
129,759
Gamma-ray bursts are very bright as observed from Earth despite their typically immense distances. An average long GRB has a bolometric flux comparable to a bright star of our galaxy despite a distance of billions of light years (compared to a few tens of light years for most visible stars). Most of this energy is rele...
https://en.wikipedia.org/wiki?curid=48803
129,707
1,943,144
Bertrand and coworkers synthesized a stable singlet phosphino-phosphinidene compound using extremely bulky substituents. Hitherto, there had been no free singlet phosphinidenes that were characterized by spectroscopy. The authors prepared a chlorodiazaphospholidine with bulky (2,6-bis[(4-tert-butylphenyl)methyl]-4-meth...
https://en.wikipedia.org/wiki?curid=26451167
1,942,033
915,154
The campus of the University of Tulsa centers on a wide, grassy, quad-like space known as Dietler Commons, formerly called "The U." The predominant architectural style is English Gothic. Most of the buildings are constructed from tan and rose-colored Crab Orchard sandstone from Tennessee interspersed with stone quarrie...
https://en.wikipedia.org/wiki?curid=32043
914,673
451,757
The patient is seated facing the device, which is raised to eye level. One design consists of a bowl containing an illuminated pattern, such as a series of concentric rings. Another type uses a mechanically rotated arm bearing a light source. In either type, light is focused on the anterior surface of the patient's cor...
https://en.wikipedia.org/wiki?curid=4584923
451,538
231,151
The Mongols also used deception very well in their wars. For instance, when approaching a mobile army the units would be split into three or more army groups, each trying to outflank and surprise their opponents. This created many battlefield scenarios for the opponents where the Mongols would seem to appear out of now...
https://en.wikipedia.org/wiki?curid=1909414
231,032
730,468
Traditionally, solenodons' closest relatives were considered to be the giant water shrew of Africa and Tenrecidae of Madagascar, though they are now known to be more closely related to true shrews (Eulipotyphla). Solenodons resemble very large shrews, and are often compared to them; with extremely elongated cartilagino...
https://en.wikipedia.org/wiki?curid=326193
730,083
482,557
In mathematics, a submodular set function (also known as a submodular function) is a set function whose value, informally, has the property that the difference in the incremental value of the function that a single element makes when added to an input set decreases as the size of the input set increases. Submodular fun...
https://en.wikipedia.org/wiki?curid=33273315
482,313
1,102,417
The United Nations Development Programme (UNDP) provided assistance of $500,000 for setting up the Experimental Satellite Communications Earth Station (ESCES) at Ahmedabad and nominated the International Telecommunication Union (ITU) as the executing agency for this project. The UNDP provided another $1.5 million, for ...
https://en.wikipedia.org/wiki?curid=8248653
1,101,856
776,873
The Chinese paddlefish was considered anadromous with upstream migration, however little is known about their migration habits and population structure. They were endemic to the Yangtze River Basin in China where they lived primarily in the broad surfaced main stem rivers and shoal zones along the East China Sea. Resea...
https://en.wikipedia.org/wiki?curid=237945
776,457
749,627
Despite their simplicity and development in the early twentieth century, when understanding of chemical bonding was still rudimentary, Lewis structures capture many of the key features of the electronic structure of a range of molecular systems, including those of relevance to chemical reactivity. Thus, they continue t...
https://en.wikipedia.org/wiki?curid=432181
749,229
1,303,011
Raman microscopy, and in particular confocal microscopy, can reach down to sub-micrometer lateral spatial resolution. Because a Raman microscope is a diffraction-limited system, its spatial resolution depends on the wavelength of light and the numerical aperture of the focusing element. In confocal Raman microscopy, th...
https://en.wikipedia.org/wiki?curid=23044361
1,302,296
1,076,110
Riding (1991) developed a two-dimensional cognitive style instrument, his Cognitive Style Analysis (CSA), which is a compiled computer-presented test that measures individuals' position on two orthogonal dimensions – Wholist-Analytic (W-A) and Verbal-Imagery (V-I). The W-A dimension reflects how individuals organise an...
https://en.wikipedia.org/wiki?curid=4642057
1,075,555
96,514
Ordinary matter is composed of atoms, once presumed to be elementary particles – "atomos" meaning "unable to be cut" in Greek – although the atom's existence remained controversial until about 1905, as some leading physicists regarded molecules as mathematical illusions, and matter as ultimately composed of energy. Sub...
https://en.wikipedia.org/wiki?curid=11274
96,473
1,194,119
On 30 July 2021, the first mass vaccination event in New Zealand began in South Auckland at Manukau Institute of Technology and Vodafone Events Centre with the goal of vaccinating at least 15,500 people over three days with the Pfizer/BioNTech vaccine in one of the highest risk areas in the country. Invitations were fi...
https://en.wikipedia.org/wiki?curid=67067814
1,193,479
1,140,992
Phenomenalism has been subjected to a similar criticism. Phenomenalism is the view that only phenomena exist. It is opposed to the common sense intuition that the material objects we perceive exist independently of our perceptual experiences of them and that they even exist when not perceived. This includes for example...
https://en.wikipedia.org/wiki?curid=454085
1,140,398
1,646,655
The GIS industry in China is worth 400 billion yuan per annum as of November 2007. More than 300,000 people were involved in either building or using these systems, according to Zondy Cyber Group president Wu Xincai, who is also the president of the China Association for Geographic Information System. Almost 20,000 ent...
https://en.wikipedia.org/wiki?curid=20598660
1,645,725
702,347
The level of support for creationism among relevant scientists is minimal. In 2007 the Discovery Institute reported that about 600 scientists signed their "A Scientific Dissent from Darwinism" list, up from 100 in 2001. The actual statement of the Scientific Dissent from Darwinism is a relatively mild one that expresse...
https://en.wikipedia.org/wiki?curid=8746727
701,979
59,072
Courtois gave samples to his friends, Charles Bernard Desormes (1777–1838) and Nicolas Clément (1779–1841), to continue research. He also gave some of the substance to chemist Joseph Louis Gay-Lussac (1778–1850), and to physicist André-Marie Ampère (1775–1836). On 29 November 1813, Desormes and Clément made Courtois' d...
https://en.wikipedia.org/wiki?curid=14750
59,047
935,439
On October 24, 2019, NHS England agreed to fund wider access to all of the pharmaceutical company's cystic fibrosis medications that were already licensed at that time, such as Orkambi, Symkevi and Kalydeco, and any future indications of these medicines. The funding agreement was finalized soon after Vertex signed reim...
https://en.wikipedia.org/wiki?curid=1913376
934,945
1,178,529
The RPS mechanism places an obligation on electricity supply companies to produce a specified fraction of their electricity from renewable energy sources. Certified renewable energy generators earn certificates for every unit of electricity they produce and can sell these along with their electricity to supply companie...
https://en.wikipedia.org/wiki?curid=50961436
1,177,905
1,739,329
After formation, a hypercycle reaches either an internal equilibrium or a state with oscillating concentrations of each type of chain "I", but with the total concentration of all chains remaining constant. In this way, the system consisting of all chains can be expressed as a single, integrated entity. During the forma...
https://en.wikipedia.org/wiki?curid=29491519
1,738,352
695,995
The idea of replacing the complicated Schmidt corrector plate with an easy-to-manufacture full-aperture spherical meniscus lens (a meniscus corrector shell) to create a wide-field telescope occurred to at least four optical designers in early 1940s war-torn Europe, including Albert Bouwers (1940), Dmitri Dmitrievich Ma...
https://en.wikipedia.org/wiki?curid=1586249
695,631
1,933,508
Recognizing from experiments performed by R.J. Webber, PhD that meniscus cells have the ability to grow in tissue culture, K.R. Stone, M.D. developed the first meniscus reconstruction device called a collagen regeneration template in 1986. The template or scaffold was composed of glycosaminoglycan (sugar/proteins that ...
https://en.wikipedia.org/wiki?curid=3858970
1,932,400
1,329,033
Military education begins in the 1st year of study, when the cadet (Evelpis) goes through Basic Military Training and is trained in individual tactics. In the years that follow, s/he masters the command of teams and platoons and learns about the organization and operation of the Infantry Company. Military education tak...
https://en.wikipedia.org/wiki?curid=9855862
1,328,305
1,624,812
Stein and Moore developed a method to quantify and separate amino acids with column chromatography, using potato starch as the stationary phase. The fractions, originally collected manually, were collected in their newly developed automated fraction collector, and the amount of each amino acid was determined by an adju...
https://en.wikipedia.org/wiki?curid=789033
1,623,896
2,099,367
When Sinclair regained his health, he started work as a surgeon on convict ships to Australia and had opportunities of collecting at several Australian ports. In 1841, he visited the Bay of Islands on , arriving on 26 October. He met the party of Captain James Clark Ross who were on their way to their to an Antarctic e...
https://en.wikipedia.org/wiki?curid=29786692
2,098,159
1,892,694
The ETF established seven Regional Centers of Innovation and Commercialization (RCICs) to foster technology commercialization throughout the entire state of Texas and act as an efficient deal sourcing mechanism. In addition, a statewide Life Science Regional Center of Innovation and Commercialization also was formed. T...
https://en.wikipedia.org/wiki?curid=5920643
1,891,611
37,185
Increased activism on campus during the 1960s prompted Martin Luther King Jr. to speak at the university in November 1964 on the progress of the Civil Rights Movement. Following Douglas Knight's resignation from the office of university president, Terry Sanford, the former governor of North Carolina, was elected presid...
https://en.wikipedia.org/wiki?curid=53273
37,172
2,041,364
In 2020, Dr. Giger was chosen to lead a new center hosted at the University of Chicago established in response to the ongoing COVID-19 pandemic intended to curate a massive database of medical images to help better understand and treat the disease. The Medical Imaging and Data Resource Center (MIDRC) brings together th...
https://en.wikipedia.org/wiki?curid=53736100
2,040,184
27,892
For experimental physics, hotness means that, when comparing any two given bodies in their respective separate thermodynamic equilibria, any two suitably given empirical thermometers with numerical scale readings will agree as to which is the hotter of the two given bodies, or that they have the same temperature. This ...
https://en.wikipedia.org/wiki?curid=20647050
27,882
111,153
During 1984, Taiwan announced its requirement for attack helicopters; it subsequently evaluated the MBB Bo 105 and MD 500 helicopters. The requirement resulted in an order for 42 AH-1W SuperCobras being placed during 1992. Deliveries of this batch ran from 1993 to 1997. During 1997, it was announced that an additional ...
https://en.wikipedia.org/wiki?curid=574557
111,108
1,154,818
The Karman cannula is a soft, flexible cannula (or curette) used in medical procedures that was popularized by Harvey Karman in the early 1970s. The flexibility of the Karman cannula was claimed to reduce the risk of perforating the uterus during vacuum aspiration. Both Karman's procedure, menstrual extraction, and his...
https://en.wikipedia.org/wiki?curid=6454240
1,154,208
1,791,602
Seiji Ogawa trained as an applied physicist in the University of Tokyo and got a Ph.D. in chemistry from Stanford. He worked for 33 years in Biophysics research at AT&T Bell Laboratories in Murray Hill, New Jersey, and was a Distinguished Member of the technical staff. In 2001, he became Director of the Ogawa Laborator...
https://en.wikipedia.org/wiki?curid=6009072
1,790,595
1,296,481
In a press briefing on 7 April 2021, Emer Cooke, the executive director of the European Medicines Agency (EMA) began by stating "Our safety committee, the Pharmacovigilance Risk Assessment Committee (PRAC) of the European Medicines Agency, has confirmed that the benefits of the AstraZeneca vaccine in preventing COVID‑1...
https://en.wikipedia.org/wiki?curid=67257205
1,295,770
1,148,454
Jacobson and his colleagues then published papers on transitioning three states to 100% renewable/WWS energy by 2050. In 2015, Jacobson was the lead author of two peer reviewed papers, one of which examined the feasibility of transitioning each of the 50 United States to a 100% energy system, powered exclusively by win...
https://en.wikipedia.org/wiki?curid=21130805
1,147,847
619,556
Fractures involve the breaking of the bone. As such, it is recommended that medical attention is sought, so as to avoid the bone healing with a malunion, which may result in post-traumatic arthritis. Additional surgery may need to be conducted to properly treat a malunion. As with a dislocation, closed reduction is att...
https://en.wikipedia.org/wiki?curid=12040038
619,241
302,003
Verification of machinery and equipment usually consists of design qualification (DQ), installation qualification (IQ), operational qualification (OQ), and performance qualification (PQ). DQ may be performed by a vendor or by the user, by confirming through review and testing that the equipment meets the written acquis...
https://en.wikipedia.org/wiki?curid=13144608
301,842
2,156,685
The most common use of noninvasive genotyping in medicine is non-invasive prenatal diagnosis (NIPD), which provides an alternative to riskier techniques such as amniocentesis. With the discovery of cell-free fetal DNA in maternal plasma, NIPD became a popular method for determining sex, paternity, aneuploidy, and the o...
https://en.wikipedia.org/wiki?curid=6246830
2,155,454
71,091
Black-body radiation becomes a visible glow of light if the temperature of the object is high enough. The Draper point is the temperature at which all solids glow a dim red, about . At , a small opening in the wall of a large uniformly heated opaque-walled cavity (such as an oven), viewed from outside, looks red; at , ...
https://en.wikipedia.org/wiki?curid=726748
71,064
645,990
Based on data from VX-100 testing, it was expected that, if room temperature superconductors are ever discovered, the VX-200 engine would have a system efficiency of 60–65% and a potential thrust level of 5 N. Optimal specific impulse appeared to be around 5,000 s using low cost argon propellant. One of the remaining u...
https://en.wikipedia.org/wiki?curid=40248
645,650
421,907
A relatively recent avenue of drug research in treating depression and drug addiction is through PPARα and PPARγ activation. Both TLR4-mediated and NF-κB-mediated signalling pathways have been implicated in the development of addiction to several drugs such as opioids and cocaine, and therefore are appealing targets fo...
https://en.wikipedia.org/wiki?curid=18775143
421,701
1,550,168
He began in the video game music and sound industry in 1987 as a composer/sound designer and programmer for Williams Electronic Games in Chicago writing music and creating sound effects for pinball machines and coin-operated video games. In 1989, Schmidt left Williams to become one of the video game industry's first in...
https://en.wikipedia.org/wiki?curid=6131499
1,549,287
15,277
The Gripen entered service using the PS-05/A pulse-Doppler X band multi-mode radar, developed by Ericsson and GEC-Marconi, which is based on the latter's advanced Blue Vixen radar for the Sea Harrier that also served as the basis for the Eurofighter's CAPTOR radar. The all-weather radar is capable of locating and ident...
https://en.wikipedia.org/wiki?curid=87577
15,272
387,425
Sir Isaac Newton had published his "Philosophiae Naturalis Principia Mathematica" in 1687 in which he gave a derivation of Kepler's laws, which describe the motion of the planets, from his laws of motion and his law of universal gravitation. However, though Newton had privately developed the methods of calculus, all hi...
https://en.wikipedia.org/wiki?curid=344783
387,230
1,233,831
Stevens' primary achievement in Panama was to build the infrastructure needed for the completion of the canal. "The digging," he said, "is the least thing of all." He proceeded immediately to build warehouses, machine shops, and piers. Communities for the personnel were planned and built to include housing, schools, ho...
https://en.wikipedia.org/wiki?curid=475761
1,233,168
1,076,193
The original intent was to place the 37 mm /L40 armament in the turret but there was insufficient space. The gun placement followed the French Char B1 and anticipated the early versions of the Churchill tanks, although in these tanks the hull guns were howitzers, rather than high-velocity guns. The M11/39 had other sho...
https://en.wikipedia.org/wiki?curid=3032789
1,075,638
2,145,860
A major theme of "Night Thoughts" is the reinforcement of Thomas Kuhn's conception of history of science as a convoluted mesh of non-linear progress effected by the biography of the scientists. Jakob's research becomes the central means by which the author expresses Kuhn's theory, reinforcing each situation with footno...
https://en.wikipedia.org/wiki?curid=29873865
2,144,629
756,654
The distinctive shape of the A4 has made it an obvious choice for model manufacturers, with examples being made in the majority of the popular scales, including a wooden example for the Brio wooden railway. One of the first two Hornby Dublo locomotive models produced, in 1938, was an A4. In 1999 a 'Super Detail' Hornby...
https://en.wikipedia.org/wiki?curid=174685
756,251
1,991,033
The Amarna Era includes the reigns of Akhenaten, Smenkhkare, Tutankhamun and Ay. The period is named after the capital city established by Akhenaten, son of Amenhotep III. Akhenaten started his reign as Amenhotep IV, but changed his name when he discarded all other religions and declared the Aten or sun disc as the onl...
https://en.wikipedia.org/wiki?curid=44625317
1,989,890
195,223
Beginning in the late 1940s, rockets were used to study cosmic rays. In 1958, Explorer 1, the first of the Explorer series of space missions, was launched to study the intensity of cosmic rays above the atmosphere and measure the fluctuations in this activity. This mission observed the existence of the Van Allen radiat...
https://en.wikipedia.org/wiki?curid=20479
195,123
585,345
Japanese air raids on Northern Australia hastened the formation in late 1942 of No. 1 Wing RAAF, comprising No. 54 Squadron RAF, No. 452 Squadron RAAF and No. 457 Squadron RAAF, under the command of Wing Commander Clive Caldwell, flying the Spitfire Vc(trop). The wing arrived at Darwin in February 1943, and saw constan...
https://en.wikipedia.org/wiki?curid=15630676
585,045
47,680
The FA-50 can be externally fitted with Rafael's Sky Shield or LIG Nex1's ALQ-200K ECM pods, Sniper or LITENING targeting pods, and Condor 2 reconnaissance pods to further improve the fighter's electronic warfare, reconnaissance, and targeting capabilities. Other improved weapon systems include SPICE multifunctional gu...
https://en.wikipedia.org/wiki?curid=2309765
47,660
1,606,623
Circa 1694, Sauveur began working with Loulié on "the science of sound", that is, acoustics. As Fontenelle put it, Sauveur laid out a vast plan that amounted to the "discovery of an unknown country", and that created for him a "personal empire", the study of "acoustical sound" ("le son acoustique"). But, as Fontenelle ...
https://en.wikipedia.org/wiki?curid=8676042
1,605,719
1,766,341
The initial implementation of this system at Donlands Dairy in Toronto led to a contract at Vancouver City Savings Credit Union ("Vancity") in Vancouver, British Columbia, to create a real-time multi-branch online banking system. Geac developed hardware and operating system software to link minicomputers together, and ...
https://en.wikipedia.org/wiki?curid=28396947
1,765,347
725,806
Spathic iron ores are rich in manganese and have negligible phosphorus. This led to their one major benefit, connected with the Bessemer steel-making process. Although the first demonstrations by Bessemer in 1856 had been successful, later attempts to reproduce this were infamously failures. Work by the metallurgist Ro...
https://en.wikipedia.org/wiki?curid=875418
725,425
1,084,320
Deicing of roads has traditionally been done with salt, spread by snowplows or dump trucks designed to spread it, often mixed with sand and gravel, on slick roads. Sodium chloride (rock salt) is normally used, as it is inexpensive and readily available in large quantities. However, since salt water still freezes at , i...
https://en.wikipedia.org/wiki?curid=1428177
1,083,763
41,749
At the start of the season, it was announced that Montoya would be moving to McLaren in 2005. The team began the season with a radical nose-cone design, known as the "Walrus-Nose", that proved uncompetitive and was replaced by a more conventional assembly in Hungary. Ferrari dominated for a third consecutive season, wi...
https://en.wikipedia.org/wiki?curid=34104
41,734
923,086
CDC's approach in the STAR used what is today known as a "memory-memory architecture". This referred to the way the machine gathered data. It set up its pipeline to read from and write to memory directly. This allowed the STAR to use vectors of length not limited by the length of registers, making it highly flexible. U...
https://en.wikipedia.org/wiki?curid=37171
922,600
1,209,699
California has been the state leading hybrid sales in the U.S. with 55,553 vehicles sold in 2009, 74,932 in 2008, and 91,417 in 2007. In 2009 it was followed by New York (15,438) and Florida (14,949). In terms of new hybrids sold per capita, the District of Columbia was the leader in 2009 with 3.79 hybrids per 1000 res...
https://en.wikipedia.org/wiki?curid=26712551
1,209,052
2,147,660
The Biotron Institute for Experimental Climate Change Research at Western University in London, Ontario is a facility constructed to simulate ecosystems and funded by the Canadian government to study how plants, microbes and insects sense and adjust to climate change. Its biome chambers allow control of temperature, hu...
https://en.wikipedia.org/wiki?curid=66044286
2,146,429
12,467
Asimov attended New York City public schools from age five, including Boys High School in Brooklyn. Graduating at 15, he attended the City College of New York for several days before accepting a scholarship at Seth Low Junior College. This was a branch of Columbia University in Downtown Brooklyn designed to absorb some...
https://en.wikipedia.org/wiki?curid=14573
12,462
248,156
The motives behind Whitney's acceptance of a contract to manufacture muskets in 1798 were mostly monetary. By the late 1790s, Whitney was on the verge of bankruptcy and the cotton gin litigation had left him deeply in debt. His New Haven cotton gin factory had burned to the ground, and litigation sapped his remaining r...
https://en.wikipedia.org/wiki?curid=9732
248,028
956,985
Some current examples of LAWs are automated "hardkill" active protection systems, such as a radar-guided CIWS systems used to defend ships that have been in use since the 1970s (e.g., the US Phalanx CIWS). Such systems can autonomously identify "and attack" oncoming missiles, rockets, artillery fire, aircraft and surfa...
https://en.wikipedia.org/wiki?curid=36973733
956,479
1,051,818
A majority of the research has found that individuals with autism perform poorly on measures of executive function. A general decrease in working memory (WM) is one of the limitations, although some studies have found that working memory is not impaired in autistic children relative to controls matched for IQ. However,...
https://en.wikipedia.org/wiki?curid=31113136
1,051,272
1,505,001
CAL was scheduled to launch in 2016 on a Pressurized Cargo Vehicle in soft-stowage. After docking with ISS the CAL payload was to be installed by astronauts into an EXPRESS (EXpedite the PRocessing of Experiments to Space Station) rack inside the space station. The EXPRESS rack provides a standardized power, data, ther...
https://en.wikipedia.org/wiki?curid=44676560
1,504,155
1,251,618
While studying tuberculosis in lab rats, Fibiger found tumors in some wild rats collected from Dorpat (officially Tartu, now in Estonia) in 1907. Rats having stomach tumour (papilloma) also had nematodes and their eggs. He found that some tumours were metastatic (cancerous). He hypothesised that the nematodes caused th...
https://en.wikipedia.org/wiki?curid=898814
1,250,940
1,560,162
A herbarium is a collection of preserved plant specimens and associated data used for scientific study. Originally, the word "herbarium" referred to books about medicinal plants. In 1700, French botanist Joseph Pitton de Tournefort used the word to describe a collection of dried plants and Carl Linnaeus continued to us...
https://en.wikipedia.org/wiki?curid=53632609
1,559,276
2,013,281
Sonodynamic therapy can be combined with other therapeutic techniques to enhance treatment efficacy for various types of cancers and diseases. SDT can be combined with photodynamic therapy, chemotherapy, radiation, MRI, and immunotherapy. PDT has often been used in combination with SDT as sonosensitizers are also photo...
https://en.wikipedia.org/wiki?curid=36264089
2,012,123
1,675,852
The discovery of LFEs originates in Japan at the Nankai trough and is in part due to the nationwide collaboration of seismological research following the Kobe earthquake of 1995. Low frequency earthquakes in Japan were first observed in a subduction setting where the Philippine Sea plate subducts at the Nankai trough n...
https://en.wikipedia.org/wiki?curid=7674011
1,674,910
567,085
Work started immediately on larger versions, first the HeS 6 which was simply a larger HeS 3b, and then on a new design known as the HeS 8 which once again re-arranged the overall layout. The compressor and turbine were connected with a large-diameter drum long-enough to fit an annular combustion chamber between them. ...
https://en.wikipedia.org/wiki?curid=259389
566,795