Active matter
Active matter is matter made of units that consume energy locally and turn it into motion, force, shape change, or organized collective behavior.
Category
Science Topics
Browse Qlopedia topics grouped under Science.
298 topics, showing 25-48 on page 2 of 13.
Topics
Special relativity
Special relativity is Albert Einstein's 1905 theory of space, time, motion, and energy for observers moving at constant velocity. It shows that the speed of light is the same for all inertial observers and that measurements of time and distance depend on relative motion.
General relativity
General relativity is Albert Einstein's theory of gravity. It describes gravity not as an ordinary force, but as the effect of mass and energy shaping spacetime, guiding the motion of planets, light, black holes, gravitational waves, and the universe as a whole.
Gravitational waves
Gravitational waves are ripples in spacetime produced by accelerating massive objects. They let scientists study black holes, neutron stars, and other extreme events through gravity itself rather than only through light.
Cosmic microwave background
The cosmic microwave background is faint microwave radiation that fills the observable universe. It is the cooled remnant of early-universe light released when space became transparent about 380,000 years after the Big Bang.
Optogenetics
Optogenetics is a research method that uses light-sensitive proteins to control selected cells with pulses of light. It is best known in neuroscience, where it lets researchers test how specific neurons and circuits contribute to movement, sensation, memory, emotion, and behavior.
INSPIRE-HEP
INSPIRE-HEP is a high-energy physics website and scholarly information platform for literature records, citations, author profiles, institutions, conferences, experiments, jobs, and dataset discovery.
RePEc
RePEc is an economics research website and decentralized bibliographic network for working papers, journal articles, books, software, author profiles, citations, rankings, and services such as IDEAS and EconPapers.
Papers With Code
Papers With Code is a machine learning website and data project known for linking research papers to code implementations, datasets, methods, evaluation tables, benchmarks, and reproducibility resources.
OpenReview
OpenReview is a website and research platform for open peer review, conference submissions, public discussion, venue workflows, reviewer profiles, preprints, proceedings, and API-based scholarly data access.
dblp
dblp is a computer science bibliography website for searching curated publication records, authors, conferences, journals, series, repositories, XML dumps, RDF data, and linked research metadata.
Open Research Europe
Open Research Europe is an open access publishing website for research outputs, open peer review, European Commission-funded work, and a CERN-hosted publishing platform expanding in 2026.
Dataverse
Dataverse is an open source research data repository website and software project for sharing, preserving, citing, exploring, and analyzing datasets, metadata, files, and research code.
OSF
OSF, the Open Science Framework, is a research collaboration website from the Center for Open Science for managing projects, sharing files, preregistering studies, hosting preprints, and connecting research materials.
CORE
CORE is an open scholarly infrastructure website at core.ac.uk for searching, aggregating, and programmatically accessing open access research papers from repositories and journals.
BASE Search
BASE Search is the Bielefeld Academic Search Engine, a scholarly search website from Bielefeld University Library for finding academic web documents, repository records, open access full texts, and research metadata.
The Lens
The Lens is a Lens.org website and open knowledge platform for searching, analyzing, and linking patent records, scholarly works, citations, biological sequences, profiles, APIs, and institutional research data.
Web of Science
Web of Science is a scholarly research website and citation-index platform from Clarivate for finding literature, following citations, evaluating journals, and analyzing research activity.
Dimensions
Dimensions is a research analytics website and data platform for exploring linked scholarly publications, grants, datasets, clinical trials, patents, citations, policy documents, and research organizations.
OpenCitations
OpenCitations is an open scholarly citation website and research infrastructure for bibliographic metadata, citation indexes, linked open data, downloads, and APIs.
Europe PMC
Europe PMC is a biomedical and life sciences literature website for searching articles, preprints, abstracts, full text, grants, author profiles, citations, annotations, and developer APIs.
MDPI
MDPI is an open access scientific publishing website for journals, article pages, peer review workflows, author guidance, publishing policies, and article processing charges.
Frontiers
Frontiers is an open access scientific publishing website for peer-reviewed journals, article pages, research topics, publishing policies, peer review guidance, and author workflows.
Research Square
Research Square is a multidisciplinary preprint website where researchers share early manuscripts, follow journal-integrated In Review workflows, and read preprints before peer-reviewed publication.