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Supercooled and Glassy Water
Physics Today - Tập 56 Số 6 - Trang 40-46 - 2003
Pablo G. Debenedetti, H. Eugene Stanley
Cold, noncrystalline states play an important role in understanding the physics of liquid water. From recent experimental and theoretical investigations, a coherent interpretation of water’s properties is beginning to emerge.
The Hydrogen Economy
Physics Today - Tập 57 Số 12 - Trang 39-44 - 2004
G. W. Crabtree, M. S. Dresselhaus, Michelle V. Buchanan
If the fuel cell is to become the modern steam engine, basic research must provide breakthroughs in understanding, materials, and design to make a hydrogen-based energy system a vibrant and competitive force
Block Copolymers—Designer Soft Materials
Physics Today - Tập 52 Số 2 - Trang 32-38 - 1999
Frank S. Bates, Glenn H. Fredrickson
Block copolymers are all around us, found in such products as upholstery foam, adhesive tape and asphalt additives. This class of macromolecules is produced by joining two or more chemically distinct polymer blocks, each a linear series of identical monomers, that may be thermodynamically incompatible (like oil and vinegar). Segregation of these blocks on the molecular scale (5–100 nm) can...... hiện toàn bộ
Thermoelectric Materials: New Approaches to an Old Problem
Physics Today - Tập 50 Số 3 - Trang 42-47 - 1997
G. D. Mahan, B. C. Sales, Jeff Sharp
Thermoelectrics is an old field. In 1823, Thomas Seebeck discovered that a voltage drop appears across a sample that has a temperature gradient. This phenomenon provided the basis for thermocouples used for measuring temperature and for thermoelectric power generators. In 1838, Heinrich Lenz placed a drop of water on the junction of metal wires made of bismuth and antimony. Passing an elec...... hiện toàn bộ
Optics of the Atmosphere: Scattering by Molecules and Particles
Physics Today - Tập 30 Số 5 - Trang 76-77 - 1977
Earl J. McCartney, Freeman F. Hall
The renaissance of x-ray optics
Physics Today - Tập 37 Số 4 - Trang 44-52 - 1984
J. H. Underwood, David Attwood
There has been a spectacular resurgence of interest in the soft x-ray and extreme ultraviolet regions of the electromagnetic spectrum in the past few years. In part, this is due to the development of new x-ray optical devices that have given us an x-ray view of the universe on scales ranging from the microscopic to the astronomical (see figure 1).
Ellipsometry and Polarized Light
Physics Today - Tập 31 Số 11 - Trang 72-72 - 1978
R. M. A. Azzam, N. M. Bashara, Stanley S. Ballard
Lagrangian coherent structures: The hidden skeleton of fluid flows
Physics Today - Tập 66 Số 2 - Trang 41-47 - 2013
Thomas Peacock, George Haller
New techniques promise better forecasting of where damaging contaminants in the ocean or atmosphere will end up.
Issues and Opportunities in Materials Research
Physics Today - Tập 45 Số 10 - Trang 24-31 - 1992
J. S. Langer
In the fall of 1989 the National Research Council issued a major report on materials science and engineering, known more familiarly as the Chaudhari-Flemings report (after Praveen Chaudhari and Merton Flemings) or simply the MS&E report. This was followed in 1990 by a series of regional meetings in four different parts of the US involving hundreds of participants from industry, academi...... hiện toàn bộ
Defects and Superconductivity in the Copper Oxides
Physics Today - Tập 44 Số 6 - Trang 34-40 - 1991
James D. Jorgensen
Few superconducting materials have presented us with the structural elegance and complexity displayed by the recently discovered high-Tc copper oxides. The structures of these materials, consisting of metal-oxygen layers stacked in a variety of sequences, with the metal atoms often in unusual coordinations, are interesting in their own right. More importantly, our present understanding of ...... hiện toàn bộ
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