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Wissenschaft News
- 'Slow light' on a chip holds promise for optical communications
- Synthetic eye prosthesis: Plastic artificial cornea implants may offer hope for blind patients
- Breaking up phosphorus with ultraviolet light may offer a safer, simpler way to build many...
- New self-assembling photovoltaic technology repairs itself
- Listening to ancient colors: New technique may help restorers identify decades-old pigments
- Water purification: Is colloidal silver necessary for bacteria removal?
- Scientist offers better ways to engineer Earth's climate to prevent dangerous global warming
- Helping corn-based plastics take more heat
- Magnetism's subatomic roots: Study of high-tech materials helps explain everyday phenomenon
- Novel nanotechnology collaboration leads to breakthrough in cancer research
- Chemists, engineers achieve world record with high-speed graphene transistors
- Experiment records ultrafast chemical reaction with vibrational echoes
- Chemists develop simple technique to visualize atomic-scale structures
- The perfect nanocube: Precise control of size, shape and composition
- Edible nanostructures: Compounds made from renewable materials could be used for gas storage, food technologies
- Strain-gating piezotronics: New class of piezoelectric logic devices created using zinc oxide nanowires
- 'Smart materials' process promises to revolutionize manufacturing of medical devices, other products
- Metal-mining bacteria are green chemists
- Chemists discover method to create high-value chemicals from biomass
- New material may reveal inner workings of hi-temp superconductors
- High-speed filter uses electrified nanostructures to purify water at low cost
- Off-the-shelf dyes improve solar cells
- IceCube neutrino observatory nears completion
- Silicon oxide circuits break barrier: Nanocrystal conductors could lead to massive, robust 3-D storage
- Yikes! Sensor measures yoctonewton forces fast
- Micro rheometer is latest 'lab on a chip' device
- Tiny rulers to measure nanoscale structures
- Mimicking fish and tailoring radar to warn of bridge peril
- Stretched polymer snaps back smaller than it started
- Tiny logo demonstrates advanced display technology using nano-thin metal sheets
- Secrets of the gecko foot help robot climb
- Medicine reaches the target with the help of magnets
- Prediction of intrinsic magnetism at silicon surfaces could lead to single-spin magnetoelectronics
- 'Greening' your flat screen TV: Engineers develop an organic LED light source for home electronics,...
- New 'light switch' chloride binder developed
- Tofu ingredient yields formaldehyde-free glue for plywood and other wood products
- 'Dry water' could make a big splash commercially, help fight global warming
- Cement, the glue that holds oyster families together
- Trouble with sputter? Blame giant nanoparticles
- Microneedle, quantum dot study opens door to new clinical cancer tools
- Glorious gadolinium gives flash memory a future
- Half-a-loaf method can improve magnetic memories
- 'Spintronics' breakthrough holds promise for next-generation computers
- New generation of power: Hi-tech rechargeable batteries developed for military
- Scientists help explain graphene mystery
- How to count the messenger out: Mapping the structure of protonated water clusters
- New atom-scale products on horizon: Breakthrough discovery enables nanoscale manipulation of piezoelectric effect
- Cluster bomb for cancer care: Nano-vehicle delivers chemotherapy treatments on target
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| Geschrieben von: Administrator | ||||||||||
| Dienstag, 01. Juli 2008 um 00:00 | ||||||||||
JPAGE_CURRENT_OF_TOTAL DefinitionMetalle sind Werkstoffe, die aus einem Gitter mit positiv geladenen Atomrümpfen und dazwischen frei beweglichen Elektronen bestehen. Die freie Beweglichkeit der Elektronen in der äußersten Schale entsteht durch die Überlappung von Valenz- und Leitungsband. Die metallische Bindung ist richtungslos.
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