Cosma / Communication / Knowledge / Realm / Physical / Matter
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Introduction1
Peter Weatherall (YouTube Channel)
Peter Weatherall (Official Website)
Dictionary
matter : material substance that occupies space, has mass, and is composed predominantly of atoms consisting of protons, neutrons, and electrons, that constitutes the observable universe, and that is interconvertible with energy — Merriam-Webster See also OneLook
Thesaurus
Roget’s II (Thesaurus.com), Merriam-Webster Thesaurus, Visuwords
Encyclopedia
Matter is any substance that has mass and takes up space by having volume. All objects that we can touch are ultimately composed of atoms, which are made up of interacting particles, and in everyday as well as scientific usage, “matter” generally includes atoms and anything made up of them, and any particles (or combination of particles) that act as if they have both rest mass and volume. However it does not include massless particles such as photons, or other energy phenomena or waves such as light or sound. — Wikipedia
Matter (Encyclopædia Britannica)
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Inspiration
Reactions (American Chemical Society, YouTube Channel)
Reactions (American Chemical Society, Official Website)
Talks about Chemistry (TED: Ideas Worth Spreading)
Articles about Chemistry (Big Think)
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Innovation
The nature of the chemical bond is the problem at the heart of all chemistry. — Bryce Crawford
Science
Chemistry is the scientific discipline involved with compounds composed of atoms, i.e. elements, and molecules, i.e. combinations of atoms: their composition, structure, properties, behavior and the changes they undergo during a reaction with other compounds. Chemistry addresses topics such as how atoms and molecules interact via chemical bonds to form new chemical compounds. — Wikipedia
Chemistry (Free Animated Education, YouTube Playlist)
Free Animated Education (Facebook)
Chemistry (Encyclopædia Britannica)
Oxford Dictionary of Chemistry (Oxford Reference)
Combined Chemical Dictionary (CRC Press)
Chemistry (Eric Weisstein’s World of Chemistry, Wolfram Research)
Chemistry (Wolfram Alpha)
Step by Step Chemistry (Wolfram Alpha)
Merck Index: Chemicals, Drugs and Biologicals (Royal Society of Chemistry)
Merck Index (Wikipedia)
Technology
Chemical engineering deals with the study of operation and design of chemical plants as well as methods of improving production. Chemical engineers develop economical commercial processes to convert raw material into useful products. — Wikipedia
Materials Engineering deals with determining the best material to use based upon its strength, electrical properties, resistance to heat or corrosion, and a host of other reasons; but they all relate to the matter’s properties. — Materials Engineering, Purdue University
Commerce
Entrepreneurship
Chemistry Campaigns (Kickstarter)
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Preservation
History
Chemistry (Free Animated Education, YouTube Playlist)
Free Animated Education (Facebook)
Alchemy is an ancient branch of natural philosophy, a philosophical and protoscientific tradition that was historically practiced in China, India, the Muslim world, and Europe. — Wikipedia
History of Science: Alchemy (Crash Course History of Science)
Alchemy (Dictionary of the History of Ideas: Studies of Selected Pivotal Ideas)
The Creation of Chemistry (Crash Course Chemistry)
Changing Concepts of Matter from Antiquity to Newton (Dictionary of the History of Ideas: Studies of Selected Pivotal Ideas)
The Chemical Revolution of Antoine-Laurent Lavoisier (American Chemical Society)
Aintoine Lavoisier (Encyclopædia Britannica)
Robert Boyle (Official Site)
Robert Boyle (Encyclopædia Britannica)
Boyle’s Law (Encyclopædia Britannica)
All Nobel Prizes in Chemistry (Nobel Foundation)
Landmarks in Chemical History (American Chemical Society)
History of Chemistry (Nature)
History of Chemistry (Wikipedia)
Timeline of Chemistry (Wikipedia)
Materials Engineering History (Engineering and Technology History Wiki)
Library
DDC: 539 Matter (Library Thing)
Subject: Matter (Library Thing)
DDC: 540 Chemistry (Library Thing)
Subject: Chemistry (Library Thing)
Subject: Matter (Open Library)
Subject: Chemistry (Open Library)
LCC: QC 170 Matter (UPenn Online Books)
LCC: QD Chemistry (UPenn Online Books)
LCC: QC 170 Matter (Library of Congress)
Subject: Matter (Library of Congress)
LCC: QD Chemistry (Library of Congress)
Subject: Chemistry (Library of Congress)
Subject: Matter (WorldCat)
Subject: Chemistry (WorldCat)
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Participation
Education
Miacademy Learning (YouTube Channel)
Miacademy (Official Website)
Matter (Chem4Kids)
What’s Matter? (Crash Course Kids, YouTube Video)
Properties of Matter (Crash Course Kids, YouTube Playlist)
Chemistry (The Franklin Institute)
Collisions Chemistry (PlayMada Games)
Chemistry (Wired Chemist)
Chemistry (Science Trek)
Compounds (Science Trek)
Chemistry (PHET Interactive Simulations, University of Colorado)
Adventures in Chemistry (American Chemical Society)
ChemMatters (American Chemical Society)
American Association of Chemistry Teachers (American Chemical Society)
Educational Resources (American Chemical Society)
Journal of Chemical Education (American Chemical Society)
Chemistry Education Research and Practice
Chemical Engineering (American Society for Engineering Education)
Materials Engineering (American Society for Engineering Education)
MERLOT: Multimedia Educational Resource for Learning and Online Teaching
OER Commons: Open Educational Resources
Course
Crash Course Chemistry (YouTube Playlist)
Crash Course Chemistry (Web Site)
General Chemistry I: Atoms, Molecules, and Bonding (MITx)
General Chemistry II: Chemical Equilibrium, Kinetics, and Transition (MITx)
Chemistry Department Courses (MIT OpenCourseWare)
Chemistry Courses (edX)
MicroBachelors Program in University Chemistry (HarvardX)
Structure of Materials Course (MITx)
Materials Science and Engineering Department Courses (MITx)
Chemical Engineering Department Courses (MIT OpenCourseWare)
Materials Science and Engineering Department Courses (MIT OpenCourseware)
Community
Occupation
CareerOneStop, YouTube Channel (U.S. Department of Labor, Employment and Training Administration)
CareerOneStop, Official Website (U.S. Department of Labor, Employment and Training Administration)
Chemists (CareerOneStop, U.S. Department of Labor, Employment and Training Administration)
Chemists and Materials Scientists (U.S. Occupational Outlook Handbook)
CareerOneStop, YouTube Channel (U.S. Department of Labor, Employment and Training Administration)
CareerOneStop, Official Website (U.S. Department of Labor, Employment and Training Administration)
Chemical Engineers (CareerOneStop, U.S. Department of Labor, Employment and Training Administration)
Materials Engineers (CareerOneStop, U.S. Department of Labor, Employment and Training Administration)
Materials Engineers (U.S. Occupational Outlook Handbook)
Chemistry Careers (American Chemistry Society)
Organization
International Union of Pure and Applied Chemistry
Royal Society of Chemistry
American Chemical Society
American Institute of Chemists
Chemical Structure Association Trust
Institution of Chemical Engineers (IChemE)
American Institute of Chemical Engineers (AIChE)
Society for the Advancement of Material and Process Engineering (SAMPE)
News
Journal of the American Chemical Society
American Chemical Society Publications
Nature Chemistry (Nature)
Chemistry (Phys.org)
Chemistry (Scientific American)
Chemistry Publications (JSTOR)
Chemistry (JSTOR)
Chemistry (EurekaAlert, AAAS)
Chemistry (Nature)
Chemical Engineering (Nature)
AIChE Journal
Advances in Chemical Engineering and Science
Chemical and Engineering News (American Chemical Society)
Materials Chemistry (Nature)
Materials Science (Science News)
Book
Chemistry (National Academies Press)
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Expression
Fun
SnuggliePuppy (YouTube Channel)
Paige the Border Collie (Facebook Page)
Humor
Reactions, American Chemical Society (YouTube Channel)
Reactions, American Chemical Society (Official Instagram)
Alchemy (Tim Hunkin, Rudiments of Wisdom Encyclopedia)
Materials (Rudiments of Wisdom Encyclopedia, Tim Hunkin)
Toy
Science History Institute (YouTube Channel)
Science History Institute Museum & Library (Official Website)
Science at Play: The History of Chemistry Sets (Sciience History Institute)
The Rise and Fall and Rise of the Chemistry Set (Sarah Zielinski, Smithsonian Magazine)
Chemistry Set (Wikipedia)
Recent News from Phys.org …
- First electrically pumped perovskite polariton...on July 29, 2026 at 7:20 pm
Resolving a long-standing problem in semiconductor physics and optoelectronics, a team of researchers from Skoltech—a VEB.RF group institution—and their colleagues from ITMO University and HSE University have for the first time demonstrated direct electrical pumping of a polariton laser based on a solution-processed halide perovskite microcrystal. Published in Nature, this solution to a decades-long technological challenge ushers in inexpensive nonepitaxial laser diodes operating under […]
- Kitchen cling film helps build centimeter-scale...on July 29, 2026 at 6:40 pm
As materials become thinner—now reaching the thickness of single atoms—it has become increasingly difficult to create sufficiently large sheets and transfer them without cracking them into tiny flakes. Recent work by a broad Amsterdam-based team of scientists, published in the journal ACS Nano, presents a new technique that solves this problem using an unexpected material found in any home kitchen.
- Researchers find factors that cause respiratory...on July 29, 2026 at 6:40 pm
Researchers at the FAMU-FSU College of Engineering and Florida State University's Resilient Infrastructure and Disaster Response Center have identified how hurricane flooding can affect health long after a storm. In research published in the Journal of Cleaner Production, the researchers identified the factors most likely to create hazardous respiratory conditions inside homes after flooding.
- Warm Agulhas Current fuels Western Cape's worst...on July 29, 2026 at 6:20 pm
For communities across the Western Cape, cut-off low weather systems are a familiar threat. They can dump torrents of rain in a matter of hours, flooding roads, damaging homes and infrastructure, and, in the worst cases, causing loss of life. What scientists have long wanted to understand is why some of these storms become so destructive, and researchers at the University of Cape Town (UCT) found that the answer lies far offshore, in the warm waters of the Agulhas Current.
- Trees and microbes team up to improve nitrogen...on July 29, 2026 at 6:00 pm
Forest trees growing in air containing higher levels of carbon dioxide (CO2) radically change the way they "cycle" nitrogen, a key plant nutrient, with implications for forests as a nature-based climate solution.
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Related
Here are links to pages about closely related subjects.
“Fundamentals”
Law (Constant) Relativity
Force Gravity, Electromagnetism (Light, Color)
Matter (Microscope) Molecule, Atom (Periodic Table), Particle
“Space”
Universe (Astronomical Instrument)
Galaxy Milky Way, Andromeda
Planetary System Star, Brown Dwarf, Planet, Moon
Our Neighborhood
Solar System Sun
Terrestrial Planet Mercury, Venus, Earth (Moon), Mars
Asteroid Belt Ceres, Vesta
Jovian Planet Jupiter, Saturn, Uranus, Neptune
Trans-Neptunian Object
Kuiper Belt Pluto, Haumea, Makemake
Scattered Disc Eris, Sedna, Planet X
Oort Cloud Etc. Scholz’s Star
Small Body Comet, Centaur, Asteroid
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Notes
1. The resources on this page are are organized by a classification scheme developed exclusively for Cosma.





