Science
1254 verified facts in this category, showing 901–1000.
- In the Barton's pendulums experiment, pendulums other than the target pendulum do not move as much, demonstrating that torquing a pendulum at its resonance frequency is most efficient.
- In the Barton's pendulums experiment, the target pendulum swings with maximum amplitude when the system vibrates at the resonance frequency of the driver pendulum.
- In the simplest construction of the Barton's pendulums experiment, approximately 10 different pendulums are hung from one common string.
- The Barton's pendulums experiment demonstrates how pendulums respond to vibration at, below, and above their resonant frequencies.
- An aeolipile produces torque from steam jets exiting the turbine.
- Paleontology examines burrows and cast-off parts of organisms (such as molted shells) as forms of fossil evidence.
- In paleontology, fossil tracks are known as ichnites.
- The term 'coprolites' refers to fossilized feces studied in paleontology.
- The term 'ichnites' refers to fossilized tracks left by prehistoric organisms.
- Paleontology includes the study of palynomorphs, which are microscopic fossilized organic particles such as pollen and spores.
- The foundation of paleontology as a science dates back to the work of Georges Cuvier in 1796.
- The brachistochrone curve problem, which asks for the curve of fastest descent between two points under gravity, was a famous challenge posed by Johann Bernoulli in the 17th century.
- Waring's problem asks whether every natural number can be expressed as a sum of a fixed number of k-th powers of natural numbers.
- The Erlangen programme was a method of characterizing geometries based on group theory, proposed by Felix Klein in 1872.
- The Langlands program is an example of an agenda pushing for progress in specific areas of mathematics.
- The Mid-Subatlantic climatological period lasted from 175 to 750 AD.
- The Antiproton Decelerator ejects decelerated antiprotons to several connected experiments.
- The Afshar experiment is a variation of the double-slit experiment in quantum mechanics.
- The secondary pions and kaons produced at Fermilab's Booster Neutrino Beam decay to produce a neutrino beam with an average energy of around 800 MeV.
- Academic discourse on hypothesized alien behavior draws upon evolutionary biology, game theory, and sociology.
- The hypothesized process of abiogenesis includes formation of a habitable planet, prebiotic synthesis of organic molecules, molecular self-replication, self-assembly, autocatalysis, and emergence of cell membranes.
- The prevailing scientific hypothesis holds that the transition from non-living to living entities on Earth was a gradual process rather than a single event.
- A transit of Venus occurred on 9 December 1874.
- Astronomy was the first natural science to reach a high level of sophistication and predictive ability, which it achieved in the second half of the 1st millennium BCE.
- The mathematical formulations of quantum mechanics use mainly a part of functional analysis, especially Hilbert spaces.
- Towards the end of the 19th century, scientists discovered phenomena in both the macro and micro worlds that classical physics could not explain.
- Bliss and Lømo published a 1973 paper in the Journal of Physiology reporting long-lasting potentiation of synaptic transmission in the dentate area of the anaesthetized rabbit following stimulation of the perforant path.
- The article argues that classic neuropsychiatry skills can help clinicians better understand patients' brain function at the bedside.
- The COVID-19 vaccine used to launch Italy's 2024-25 vaccination campaign is a monovalent mRNA vaccine adapted to the JN.1 variant.
- The detection used the IRAM 30-meter radio telescope at Pico Veleta (Granada) and the 40-meter radio telescope at the Yebes Observatory (Guadalajara).
- Mean follow-up after vaccination was 16 months per participant in the Pfizer phase 3 RSV vaccine trial (median 17 months) and 19 months in the GSK phase 3 RSV vaccine trial (median 23 months).
- Stars with masses between one and eight times that of the Sun pass through the asymptotic giant branch (AGB) phase of stellar evolution.
- In a meta-analysis of 14 weight-loss intervention studies, average baseline participant weight ranged from 82 kg to 139 kg, while intervention durations ranged from 8 to 26 weeks.
- The Bureau of Meteorology (BOM) hosts a Real-Time Ocean Reanalysis Intercomparison for Salinity covering 5 ocean reanalyses using a 1993–2013 climatology.
- A study titled 'El Niño was a key driver of anomalous ocean warming in Southeast Asia in 2023' was published in Scientific Reports.
- The study "'Feeling' or 'sensing' the future? Testing for anomalous cognitions in clinical versus healthy populations" was published in the journal Heliyon in November 2022.
- A vervet-monkey research dataset contained 68,443 recorded affiliative interactions and 16,259 recorded agonistic interactions, gathered using ad libitum sampling.
- The ensemble mean trend in total global ocean kinetic energy before 1990 was approximately (−0.01 ± 0.16) × 10¹⁷ J per decade and was not statistically significant.
- FDA's NARMS interim data updates use genomic analysis to screen enteric bacteria for resistance to medically important antibiotics.
- In 2018, questions about problematic social media use were included in the HBSC survey for the first time.
- The HBSC study is a multicentric international study conducted in collaboration with the WHO in 51 nations.
- On June 7, 2024, the National Academies of Sciences, Engineering, and Medicine (NASEM) published the FDA co-sponsored report 'The Role of Seafood in Child Growth and Development,' which concluded there was not enough evidence to revise seafood amounts recommended in the Dietary Guidelines for Americans.
- The EPA reference dose for chronic oral exposure to methylmercury is 0.1 micrograms of mercury per kilogram of body weight per day.
- According to the ninth AIFA report, the Comirnaty vaccine accounted for 68% of adverse event reports and 71.2% of doses administered in the campaign so far.
- According to the ninth AIFA report, the median age of people who experienced a reported adverse event after COVID-19 vaccination was 48 years.
- According to the ninth AIFA report, 101,110 adverse event reports were registered in Italy out of 84,010,605 COVID-19 vaccine doses administered between 27 December 2020 and 26 September 2021, a rate of 120 reports per 100,000 doses.
- The study draws on metadata from more than five million scientific publications spanning 2000-2024 across 27 fields.
- The Behavioral Risk Factor Surveillance System (BRFSS), a state-based telephone health survey, began in 1984 in 15 states.
- The 2007 PrISMA study surveyed 3,418 children aged 10-14 living in urban areas of Italy.
- According to Italy's Passi surveillance, about 6% of adults aged 18-69 report depressive symptoms.
- The PHQ2 test used in Italy's Passi surveillance has a specificity of 90% for detecting depressive symptoms.
- In 2015, the European Medicines Agency authorized 93 medicines for commercial sale.
- Roche is the producer of Avastin, and Novartis is the producer of Lucentis.
- A 2025 study led by Hirano T. examined the impact of land use change and drought on net emissions of carbon dioxide and methane from tropical peatlands in Southeast Asia, published in AGU Advances.
- There is currently no known cure for endometriosis.
- A 2026 paper by Nabeshima and Onuma titled 'Winter migratory birds may carry diverse antimicrobial resistance genes into Japan' was published in One Health Outlook.
- A 2026 study by Jensen, Goldstein, Fukasawa, Iannarilli, and Kays titled 'Large mammal recovery in the wake of human population decline' was published in the Journal of Applied Ecology.
- NGC 5468, the galaxy shown in the accompanying image, is located about 130 million light-years from Earth.
- The KM3NeT scientific collaboration includes 350 scientists from 68 laboratories around the world.
- In 2018, about 5,000 surgical revascularizations were performed in Spain.
- In 2018, more than 70,000 percutaneous revascularizations were performed in Spain.
- Diseases of the circulatory system, led by ischemic heart disease, are the leading cause of death in Spain, accounting for 28.3% of deaths.
- The dog skeleton belonged to a male canid between two and three years old at death.
- The metropolitan France leveling network (mainland and Corsica) is subdivided into 4 increasingly dense levels called 1st, 2nd, 3rd, and 4th order.
- In 2004, an expedition of students from the IGN's school (formerly ENSG, now Géodata Paris) attempted to reach the summit of Mont Blanc but did not succeed.
- The Vera C. Rubin Observatory, located on Cerro Pachón in Chile, hosts the 8.4-meter Simonyi Survey Telescope.
- The scientific description of the deep-sea chiton Ferreiraella populi was published in the open-access Biodiversity Data Journal.
- Research indicates that inadequate sleep impairs the consolidation of factual memories.
- High caffeine doses during pregnancy might increase the risk of premature delivery, low birth weight, and miscarriage.
- The australopithecine specimen known as 'Lucy' is approximately 3 million years old.
- The Global Flourishing Study is a longitudinal panel study of over 200,000 participants in 22 countries, spanning all six populated continents.
- Theorists from LPC Caen and VECC (India) used a theoretical model called BUU@VECC-McGill to simulate the dynamics of nucleon interactions in the collisions.
- The FAZIA particle detector has been in operation since 2015.
- The global average temperature rose by 1.09°C when comparing the 1850-1900 average to the 2011-2020 average.
- The Sea Care research project has a planned duration of three years and conducts sampling using the training ship Amerigo Vespucci and other Italian Navy vessels.
- The Sea Care project is a partnership between the Italian National Institute of Health (ISS), the National System for Environmental Protection (SNPA), the Italian Navy, and several universities.
- Researchers studied bushfire fighters' responses to three consecutive days of simulated firefighting tasks conducted at 33°C or 19°C.
- Samuel Hirst said the research team initially hypothesized that larger islands, supporting greater biodiversity and prey diversity, would be associated with more complex rattlesnake venoms.
- The researchers collected venom samples from 83 rattlesnakes, some of which measured up to four feet long.
- A study titled 'Island biogeography and competition drive rapid venom complexity evolution across rattlesnakes' was published in the journal Evolution in 2025 with DOI 10.1093/evolut/qpaf074.
- Hemophilia A results from a missing or deficient clotting factor VIII, while Hemophilia B results from a missing or deficient clotting factor IX.
- If non-Hodgkin lymphoma spreads to the bone marrow, it can reduce blood-cell production and lower platelet count, leading to easy bruising and bleeding.
- Vitamin K deficiency can slow blood clotting and cause more blood to accumulate under the skin as a bruise.
- Blood from two of the six patients infected with the newly identified bacteria was tested by culture at the CDC, where the organism was grown in the laboratory.
- The researchers' experiment involved balls bouncing as if on a racquetball court, with participants watching the animation until the balls vanished and then predicting when they would have reached the ground.
- For billions of years, bacteria and other single-celled organisms were the only life on Earth.
- The 2020–2025 Dietary Guidelines for Americans recommend consuming no more than 2,300 milligrams of sodium per day.
- The human body contains more than 600 muscles, compared with 206 skeletal bones.
- Myelin is a thin layer of fat that covers some neuronal axons and acts as an insulator, helping transmit nerve impulses.
- An estimated 234,030 new cases of lung cancer were expected to be diagnosed in the U.S. in 2018.
- In a meta-analysis of 7,703 Clostridium difficile infection patients, 1,525 developed recurrent infection.
- A 2025 study in JACC Advances, volume 4, issue 2, article 101541, evaluated the combined use of transcatheter edge-to-edge repair and left atrial appendage occlusion.
- People with a bicuspid aortic valve usually undergo a CT scan, in addition to echocardiograms, to check for changes in the size of the aorta.
- William Gahl, an MIT graduate from the class of 1972, heads the Undiagnosed Diseases Program at the National Institutes of Health.
- In 1990, the U.S. Dietary Guidelines added a recommendation that less than 30% of total caloric intake should come from fat.
- The Cahuilla earthquake swarm occurred about 10 miles from the San Jacinto fault zone, between the San Jacinto and Elsinore faults near the Cahuilla Band of Mission Indians reservation.
- Heart disease accounted for an estimated 19 million deaths worldwide in 2020, making it the leading cause of death globally.
- In the Mayo Clinic study of 68 women, 21 received estrogen through a skin patch, 17 received estrogen orally, and 30 received a placebo.
- A study on interracial and cross-class marriage analyzed both Census data and federal tax records.
- Glutamate, a form of the amino acid glutamic acid, occurs naturally in foods including cheese, tomatoes, mushrooms and meat.