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Term: universe


Topics from Topodia matching the term "universe"
Energy
system , potential energy , kinetic energy , energy , energy star
In general, the concept of energy refers to the potential for causing changes. In physics, energy is the ability to do work and has many different forms (potential, kinetic, electromagnetic, etc.) No matter what its form, physical energy has the same units as work; a force applied through a distance. The SI unit of energy, the joule, equals one newton applied through one meter.
Topics for this category include energy resources, energy utilization technologies, technology research and technical innovations, and analytical aspects of energy policy.
Physics
physics , science , extra dimensions , loop quantum gravity , user comments

"Physics is the study and application of the fundamental laws of nature, including the laws of motion, gravity, electromagnetism, heat, and microscopic interactions. These laws govern the behavior of objects at all scales, from the smallest subatomic particles to the entire observable universe. In between, physicists study nuclear reactions, the interactions of atoms with light, properties of solids, chaotic dynamics of fluids, and the evolution of stars and galaxies, among many other applications."

If this doesn't tickle your fancy, there is always the quote from Rutherford: "In science, there is only physics; all the rest is stamp collecting."

Skeptical Inquiry
science , review , skepticism , astrology , scientific method
Critical evaluation of alternative science, paranormal phenomena, news reports about science, etc.
Anomalies and Alternative Science
science , correlation function , superstitions , planetary fluctuations , diagonal method
Science is constantly reshaping itself through unexpected observations, new ideas, and revisions to old theories. While terms like "anomalies" or "alternative" may seem pejorative from an orthodox perspective, from an historical view these are the topics are the very life-blood of science. We must have heretics and revolutionaries challenging our beliefs, and advancing the state of the believable, otherwise science will stagnate into dogma.
Paranormal
unidentified flying objects , archive x , paranormal phenomena , gateway voyage , human consciousness
The paranormal deals with that which cannot be scientifically explained. ESP, Extraterrestrial Life, Psychic Powers, and other topics are covered here.
Science
computer , science , computers , improbable research , solar cells
Sites in this category contain jokes, essays, songs, students' test answers and other humorous content pertaining to science, math, engineering and statistics.
Educational Resources
osgood file , science , america radio reports , scientists , full story
Science educational resources are educational products and services for teachers and students in the general field of science or cover more than one specialty in science. Some examples of webpages to be listed here include science workbooks, class activities, lesson plans, and mentoring programs.
Neuro Linguistic Programming
nlp , audio liminal , presuppositions , assumptions , language patterns
NLP (Neuro-Linguistic Programming) is a powerful system for representing and influencing human behavior. It combines aspects of psychology, linguistics, and computer science. Its techniques have been applied to education, sales, therapy, and all sorts of other fields. Richard Bandler and John Grinder came up with the technology in the 1970's. Tony Robbins popularized it in the 1980's. In the 1990's, Bandler returned with DHE, or Design Human Engineering. Today, NLP's popularity is growing on the internet. These sites represent some of the most useful NLP resources on and off the web.
Amateur
astronomy , telescope , amateur astronomers , planets , wikipedia
This category lists sites specifically for the non-professional areas of astronomy. Amateurs are also known as "backyard astronomers."
SETI
seti , extraterrestrial intelligence , extra-terrestrial intelligence , intelligent life , keeney astroresearch

The Search for Extraterrestrial Intelligence. Institutes and programs for scientific and educational projects relevant to the nature, distribution, and prevalence of life in the universe.

Education
astronomy , project , solar system , planets , lesson
Science/Astronomy/Education is for educational web sites of interest to educators, parents, students, and professionals emphasizing the teaching or learning of various aspects of astronomy or astrophysics. The best sites will try to teach or instruct about astronomy or astrophysics, although clear, easy-to-follow explanations of topics are useful as well. There are also sites here that talk about educational programs of all levels, including - but not limited to, grade school, college programs, and graduate schools.
Solar System
solar system , planets , orbital elements , rotation period , large body
The Solar System currently consists of the Sun, nine planets, and the many asteroids and comets that also orbit the Sun.
Pi
diameter , circumference , digits , ratio , decimal places
Pi = 3.1415926535... An irrational number, a never ending yet never repeating decimal, Pi has been calculated and explored throughout history from the ancient times to the present.
Particle
cern , particle physics , physics , detector , fermilab

Particle physics, often called High Energy Physics (HEP) deals with the smallest building blocks of everything around us - subatomic elementary particles.

It is not about particles you could see under a microscope (e.g. dust particles) and it is not about chemical molecules.

The World Wide Web was invented by particle physicists at CERN.

Relativity
general relativity , relativity , einstein , general theory , black holes
Classical mechanics generalized (extended) to realm of high velocities (special relativity), and strong gravitational fields (general relativity). In particular, the theory that time and space form a single 'spacetime' which is curved in the presence of energy and mass.
NASA
nasa , solar system , system , ads , technology
Sites belonging to NASA or sponsored by NASA. If a site is not directly NASA initiated or sponsored by NASA it belongs in another category.
Human
genes , human genome , genome , scientists , entire article
This category is for listing sites dealing with the genetics of the human race.
Science
science , scientific revolution , electrical machine , full text , internet archive
Covers the development of science within a regional, topical, social or political context. Many scientific discoveries were influenced or hindered by the political and cultural climate of the times.
Religious Studies
god , religion , world religions , mahayana buddhism , buddha
The Religious Studies category contains academic sites, references on primary sources (such as texts from various religious traditions), and other resources for the study of religions from an objective or comparative viewpoint. Sites that emphasize the study of a particular religion by adherents of that religion are classifed with that religion.
Sacred Geometry and Art
fibonacci numbers , geometry , mandala , phi , golden section
This category lists web pages that offer information on sacred geometry observations. Sacred geometry is the observation of geometric forms in relation to sacred terms where sacred terms might be resolved as sacred measures. Sacred geometry can be observed through sacred architecture, fine art, music, and literary works such as Saint Teresa of Avila's "Interior Castle". It is about the playing of harmony among things created.
UFOs
ufos , aliens , ufo , communication , sightings
Sites pertaining to aliens and UFOs (unidentified flying objects.)

If you have a personally-owned (not company) site that does not pertain to any specific field of UFO research, please submit it to the Personal Pages subcategory.

Astrology
astrology , god , planets , horoscope , standard time
Astrology is an ancient science. Astrologers believe that events in the heavens and those on the earth mirror one another, sharing as they do a common space and time. Astrology is not just about sun signs, and nor is it a form of fortune telling. It is about maximising human potential through the information offered in the natal chart.
Time Travel
time machine , time travel , einstein , mallett , dial
In this category you can find everything on the possibilities of time travel (illusion or reality?) in the framework of Einstein's theory of relativity.
Asia
zhineng qigong , hunyuan qi , chi kung , shaolin kungfu , complete book
Qigong instructors offering classes to the general public in Asia.
Galaxies
galaxies , galaxy , milky way , andromeda , astro-ph preprint server
Research Centers
university , astronomy , department , research , astrophysics
This category lists sites especially for institutional astronomical research centers.
News and Media
scientists , researchers , science , full story , thomas h. maugh ii
Current news and features about science and technology.
Alexander Technique
alexander technique , alexander , technique , special edition e-journal , london
The Alexander Technique is a long-established method of helping people learn how to release harmful physical stress from their body - stress that can result in such symptoms as backache, stiff neck and shoulders and a variety of repetitive strain injuries. It is also widely used by performers who wish to improve the quality of their work.
Absolute Zero
nobel prize , physics , atoms , nist , bell labs
Mars
mars , planet , nasa , atmosphere , red planet
Mars is the 4th planet out from the sun. Sites in this category deal with this planet, and its moons.
Active Galactic Nuclei - Quasars
quasars , huge mass , galaxy , jet , active galaxies
Bioanalytical Chemistry
liquid water , biosensors , workshop , clinical analysis , techniques

This category links to categories with sites in which the topic is analysis of chemicals from living things. Nowadays, many of these analytes can be synthesized with out the need for a biological source.
The term is also used in cases where the analyte may be inorganic but the matrix is biological, such as iron in blood.
For cases of the presence of biological or inorganic contaminants in water, or effluent, see Environmental_Chemistry.

Alchemy
alchemy , bruno , ormes , atomic mass , science
Historically, alchemy is based on the ancient belief that all matter consists of various mixtures of four basic elements: Earth, Air, Fire and Water. In current usage, any chemistry based on ancient principles rather than modern physics may be included.
Neutron Stars
neutron star , neutron stars , pulsar , pulsars , neutron
Novae and Supernovae
nucleus , discovery image , lick observatory supernova search , supernovae , supernova
Interstellar Medium
solar system , home page , interstellar medium , planets , local interstellar cloud
Cellular Automata
cellular automata , applet , artificial life , simulation , automaton
Observatories
observatory , astronomy , telescope , university , telescopes
This category lists sites especially for astronomical observatories of institutions.
X-ray
nasa , smithsonian astrophysical observatory , astrophysics science division , liberating star stuff , louis pasteur
This category lists sites especially for astronomical observatories with x-ray capabilities.
Pharmaceutical
drug carriers , drug delivery , drug , pharmaceutical sciences , delivery
Philosophy of Science
science , theories , hempel , dn model , reduction
The philosophy of science is concerned with the philosophical interpretation and study of the natural sciences, in particular, physics, biology, and mathematics.
Neutrino
neutrinos , neutrino , university , frederick reines , particle physics
Neutrinos are some of the most dificult to observe elementary particles. They interact only weakly. Most of them escape without detection, only a tiny fraction of them can be seen. There are three kinds of neutrinos: electron neutrino, muon neutrino and tau neutrino. Neutrinos can oscillate i.e. they can change their identity in flight and transform from one kind of neutrino into another kind of neutrino. Sources of observed neutrinos include: nuclear reactors, accelerator beams, radioactive sources, secondary particles created by interaction of cosmic rays in the atmosphere, Sun, supernovae. Other possible soruces are: dark matter, gamma ray bursts, active galactic nuclei, relic neutrinos, Earth interior.
Black Holes
black holes , black hole , event horizon , general relativity , gravity
This category is dedicated to sites about black holes - ultra-compact astronomical objects that are predicted by Einstein's theory of general relativity, whose gravity is so strong that not even light can escape.
Satellites
ngst , rem , orbit , sem , technology
Europe
andrew , planetarium , last admission , solar system , space encounters
A planetarium is a place that allows its visitors to experience the wonders of space while still on earth. Shows presented are entertaining, but have an educational aspect as well.
Image Processing
first element , test target , millimeter , pixel profile , test element
This category contains links to research and state of the art technology in Image Processing. Image Processing is the computer manipulation of images. Some of the many algorithms used in image processing include convolution (on which many others are based), FFT, DCT, thinning (or skeletonisation), edge detection and contrast enhancement. These are usually implemented in software but may also use special purpose hardware for speed. Image processing contrasts with computer graphics, which is usually more concerned with the generation of artificial images, and visualisation, which attempts to understand (real-world) data by displaying it as an artificial image (e.g. a graph). Image processing is used in image recognition and computer vision. (source: Dictionary.com)
Infinity
infinity , natural numbers , fractions , context , actual infinity
Used in many context, infinity can have many meanings. The sequence of natural numbers, 1, 2, 3, ..., is said to be infinite. In geometry, the number of points on a line is said to be infinite. Time is often assumed to be infinite, in the sense that it had no beginning, or will have no end, or both. Space is often assumed to be infinite in extent. Infinity is not bound by the basic rules and axioms of math and can destroy logic in arithmetic.
United States
planetarium , solar system , private bookings , mars , planets
Canada
burke science building , montr , planetarium , h.r. macmillan space centre , educational activities multimedia
Helium
helium , liquid helium , gas , helium ii , atmosphere
Carbon
carbon , graphite , carbon dioxide , compounds , element
Nitrogen
nitrogen , nitric acid , molecular nitrogen , ammonia , nitrogen gas
Oxygen
oxygen , atmosphere , abundant element , combustion , oxygen gas
Neon
neon , helium , atmosphere , simple asphyxiant , element
Magnesium
magnesium , abundant element , precipitate , separation , magnesia
Silicon
silicon , silicon dioxide , silica , carbon , abundant element
Iron
iron , pig iron , carbon , wrought iron , abundant element
Lagrangian and Hamiltonian Mechanics
least action , maupertuis , system , principle , quantum mechanics
This is a reformulation of Newton's Laws of Motion, developed by W. R. Hamilton and J. L. Lagrange, using Hamilton's principle of least action and then further analysing the resultant formulae using methods in calculus of variations.
Hydrogen
hydrogen , gas , hydrogen gas , hydrogen atom , compounds
Academic Departments
kirkwood observatory , astronomy , telescope , indiana , cogshall
This category lists sites of degree granting departments of recognized colleges and universities.
Meteorites
meteorites , lunar meteorites , meteorite , specimens , lunar meteorite
A Meteorite is a fragment of rock (often with a very high metallic content) that has its origins in outer space.