| D008433 |
Mathematics |
The deductive study of shape, quantity, and dependence. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) |
Mathematic |
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| D010825 |
Physics |
The study of those aspects of energy and matter in terms of elementary principles and laws. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) |
Physic |
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| D011827 |
Radiation |
Emission or propagation of acoustic waves (SOUND), ELECTROMAGNETIC ENERGY waves (such as LIGHT; RADIO WAVES; GAMMA RAYS; or X-RAYS), or a stream of subatomic particles (such as ELECTRONS; NEUTRONS; PROTONS; or ALPHA PARTICLES). |
Radiations |
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| D003359 |
Cosmic Radiation |
High-energy radiation or particles from extraterrestrial space that strike the earth, its atmosphere, or spacecraft and may create secondary radiation as a result of collisions with the atmosphere or spacecraft. |
HZE Particles,Radiation, Cosmic,Cosmic Radiations,HZE Particle,Particle, HZE,Particles, HZE,Radiations, Cosmic |
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| D003903 |
Deuterium |
The stable isotope of hydrogen. It has one neutron and one proton in the nucleus. |
Deuterons,Hydrogen-2,Hydrogen 2 |
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| D006112 |
Gravitation |
Acceleration produced by the mutual attraction of two masses, and of magnitude inversely proportional to the square of the distance between the two centers of mass. It is also the force imparted by the earth, moon, or a planet to an object near its surface. (From NASA Thesaurus, 1988) |
G Force,Gravistimulation,Gravity,Force, G,G Forces,Gravities |
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| D001256 |
Astronomy |
The science concerned with celestial bodies and the observation and interpretation of the radiation received in the vicinity of the earth from the component parts of the universe (McGraw Hill Dictionary of Scientific and Technical Terms, 5th ed) |
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| D013816 |
Thermodynamics |
A rigorously mathematical analysis of energy relationships (heat, work, temperature, and equilibrium). It describes systems whose states are determined by thermal parameters, such as temperature, in addition to mechanical and electromagnetic parameters. (From Hawley's Condensed Chemical Dictionary, 12th ed) |
Thermodynamic |
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| D055095 |
Optics and Photonics |
A specialized field of physics and engineering involved in studying the behavior and properties of light and the technology of analyzing, generating, transmitting, and manipulating ELECTROMAGNETIC RADIATION in the visible, infrared, and ultraviolet range. |
Photonics,Photonics and Optics |
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| D055580 |
Astronomical Phenomena |
Aggregates of matter in outer space, such as stars, planets, and comets; their properties; and the processes they undergo. |
Astronomical Processes,Astronomic Concepts,Astronomic Phenomena,Astronomic Phenomenon,Astronomic Process,Astronomic Processes,Astronomical Concepts,Astronomical Process,Astrophysical Concepts,Astrophysical Phenomena,Astrophysical Phenomenon,Astrophysical Processes,Astronomic Concept,Astronomical Concept,Astrophysical Concept,Concept, Astronomic,Concept, Astronomical,Concept, Astrophysical,Concepts, Astronomic,Concepts, Astronomical,Concepts, Astrophysical,Phenomena, Astronomic,Phenomena, Astronomical,Phenomena, Astrophysical,Phenomenon, Astronomic,Phenomenon, Astrophysical,Process, Astronomic,Process, Astronomical,Processes, Astronomic,Processes, Astronomical,Processes, Astrophysical |
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