A team from Naturalis Biodiversity Center in the Netherlands was looking for a Tyrannosaurus in the summer of 2013 in Wyoming. Instead, they found a Triceratops: the famous dinosaur with the three horns and the large neck ...
Paleontology & Fossils
Mar 26, 2024
0
998
Scientists use tiny minerals called zircons as geologic timekeepers. Often no bigger than a grain of sand, these crystals record chemical signatures of the geological environment where they formed. In a new study led by scientists ...
Earth Sciences
Apr 3, 2024
1
109
U.S. Naval Research Laboratory (NRL) scientists have published the Cascaded Variational Quantum Eigensolver (CVQE) algorithm in a recent Physical Review Research article. The algorithm is expected to become a powerful tool ...
Quantum Physics
Mar 25, 2024
0
527
If you were to throw a message in a bottle into a black hole, all of the information in it, down to the quantum level, would become completely scrambled. Because in black holes this scrambling happens as quickly and thoroughly ...
Analytical Chemistry
Apr 5, 2024
0
1071
Ring-shaped chemical structures called saturated heterocycles are found in most FDA-approved drugs but are often difficult to create. Scripps Research chemists have just developed a surprisingly easy method for making many ...
Materials Science
Apr 13, 2024
0
85
A team of chemistry researchers at the University of North Carolina at Chapel Hill has developed a unique approach to harnessing the sun's energy to produce hydrogen gas, a potential clean energy source, from water, according ...
Analytical Chemistry
Mar 26, 2024
0
95
Scientists are normally happy to find regularities and correlations in their data—but only if they can explain them. Otherwise, they worry that those patterns might just be revealing some flaw in the data itself, so-called ...
Analytical Chemistry
Apr 18, 2024
0
83
An international team of researchers from Queen Mary University of London, the University of Oxford, Lancaster University, and the University of Waterloo have developed a new single-molecule transistor that uses quantum interference ...
Nanophysics
Mar 25, 2024
0
754
At the intersection of chemistry and computation, researchers from the University of Glasgow have developed a hybrid digital-chemical probabilistic computational system based on the Belousov-Zhabotinsky (BZ) reaction which ...
Researchers at The University of Manchester have developed a new catalyst which has been shown to have a wide variety of uses and the potential to streamline optimization processes in industry and support new scientific discoveries.
Analytical Chemistry
Apr 8, 2024
0
30
cept
A chemical substance is a material with a specific chemical composition.
A common example of a chemical substance is pure water; it has the same properties and the same ratio of hydrogen to oxygen whether it is isolated from a river or made in a laboratory. Some typical chemical substances are diamond, gold, salt (sodium chloride) and sugar (sucrose). Generally, chemical substances exist as a solid, liquid, or gas, and may change between these phases of matter with changes in temperature or pressure. Chemical reactions convert one chemical substance into another.
Forms of energy, such as light and heat, are not considered to be matter, and thus they are not "substances" in this regard.
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