Physics Today
Công bố khoa học tiêu biểu
* Dữ liệu chỉ mang tính chất tham khảo
Sắp xếp:
The Hydrogen EconomyIf 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
Physics Today - Tập 57 Số 12 - Trang 39-44 - 2004
Block Copolymers—Designer Soft MaterialsBlock 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... ...
Physics Today - Tập 52 Số 2 - Trang 32-38 - 1999
Lagrangian coherent structures: The hidden skeleton of fluid flowsNew techniques promise better forecasting of where damaging contaminants in the ocean or atmosphere will end up.
Physics Today - Tập 66 Số 2 - Trang 41-47 - 2013
Defects and Superconductivity in the Copper OxidesFew 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 ... ...
Physics Today - Tập 44 Số 6 - Trang 34-40 - 1991
Advantages and disadvantages of various interpretations of the quantum theoryJoseph Henry's genius was attracted primarily to the great experimental problems of his age. Although he was a professor of natural philosophy, a discipline which a century ago combined the various branches of physical science, he is not known to have indulged in the kind of formal considerations to which the title of this evening's discourse alludes. Yet I am confident that my subject is ... ...
Physics Today - Tập 7 Số 10 - Trang 6-13 - 1954
Superconducting Circuits and Quantum InformationSuperconducting circuits can behave like atoms making transitions between two levels. Such circuits can test quantum mechanics at macroscopic scales and be used to conduct atomic-physics experiments on a silicon chip.
Physics Today - Tập 58 Số 11 - Trang 42-47 - 2005
The Deborah NumberIn 1928 I came from Palestine to Easton, Pa., to assist Eugene Cook Bingham at the birth of Rheology. I felt strangely at home. There was Bethlehem quite near, there was a river Jordan and a village called little Egypt. The situation was, however, also slightly confusing. To go from Bethlehem to Egypt, one had to cross the river Jordan, a topological feature which did not conform to the or... ...
Physics Today - Tập 17 Số 1 - Trang 62-62 - 1964
Electromagnetically Induced TransparencyElectromagnetically induced transparency is a technique for eliminating the effect of a medium on a propagating beam of electromagnetic radiation. EIT may also be used, but under more limited conditions, to eliminate optical self-focusing and defocusing and to improve the transmission of laser beams through inhomogeneous refracting gases and metal vapors, as figure 1 illustrates. The techn... ...
Physics Today - Tập 50 Số 7 - Trang 36-42 - 1997
Icosahedral Boron-Rich SolidsBoron-rich molecules and solids hold a special place within chemistry. They do not follow the general bonding rules we are taught in chemistry classes. For example, some boron-rich solids are composed of 12-atom clusters of boron atoms in which each boron atom resides on a vertex of an icosahedron. These solids are very stable refractory materials with melting temperatures up to 2400 °C—a ... ...
Physics Today - Tập 40 Số 1 - Trang 55-62 - 1987
Tổng số: 33
- 1
- 2
- 3
- 4