Matter & Energy, YIE-ZYM
Matter is the material substance that constitutes the observable universe and, together with energy, forms the basis of all objective phenomena. Energy, in physics, is the capacity for doing work. It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other various forms.
Matter & Energy Encyclopedia Articles By Title
yield strength
yield strength, minimum stress at which a solid will undergo permanent deformation or plastic flow without a significant......
Young’s experiment
Young’s experiment, classical investigation into the nature of light, an investigation that provided the basic......
Young’s modulus
Young’s modulus, numerical constant, named for the 18th-century English physician and physicist Thomas Young, that......
ytterbium
ytterbium (Yb), chemical element, a rare-earth metal of the lanthanide series of the periodic table. Ytterbium......
yttrium
yttrium (Y), chemical element, a rare-earth metal of Group 3 of the periodic table. Yttrium is a silvery white,......
Z particle
Z particle, massive electrically neutral carrier particle of the weak force that acts upon all known subatomic......
Zeeman effect
Zeeman effect, in physics and astronomy, the splitting of a spectral line into two or more components of slightly......
zeolite
zeolite, any member of a family of hydrated aluminosilicate minerals that contain alkali and alkaline-earth metals.......
zero-point energy
zero-point energy, vibrational energy that molecules retain even at the absolute zero of temperature. Temperature......
Ziegler-Natta catalyst
Ziegler-Natta catalyst, any of an important class of mixtures of chemical compounds remarkable for their ability......
zinc
zinc (Zn), chemical element, a low-melting metal of Group 12 (IIb, or zinc group) of the periodic table, that is......
zinc group element
zinc group element, any of the four chemical elements that constitute Group 12 (IIb) of the periodic table—namely,......
zirconia
zirconia, zirconium dioxide, an industrially important compound of zirconium and oxygen usually derived from the......
zirconium
zirconium (Zr), chemical element, metal of Group 4 (IVb) of the periodic table, used as a structural material for......
zone melting
zone melting, any of a group of techniques used to purify an element or a compound or control its composition by......
Zyklon-B
Zyklon-B, brand name for a hydrogen cyanide–based chemical compound initially created as a pesticide and rodenticide......
Zymogen
Zymogen, any of a group of proteins that display no catalytic activity but are transformed within an organism into......