ScienceDaily: Top Technology News |
| Even with defects, graphene is strongest material in the world Posted: 31 May 2013 08:47 AM PDT Engineering researchers demonstrate that graphene, even if stitched together from many small crystalline grains, is almost as strong as graphene in its perfect crystalline form. This resolves a contradiction between theoretical simulations, which predicted grain boundaries can be strong, and earlier experiments, which indicated they were much weaker than the perfect lattice.  |
| 'Population census' of galaxies buried in dust Posted: 31 May 2013 07:52 AM PDT Conventional research on distant galaxies have been carried out mainly with visible light and near infrared light. However, it is possible that many galaxies in the universe have been overlooked as much of that radiation is largely absorbed by cosmic dust. That is why millimeter and submillimeter wave observations are important. Stellar light absorbed by dust is reradiated from the dust as millimeter/submillimeter waves. Therefore galaxies, even those which it has not been possible to observe with optical telescopes, can be detected using these wavebands.  |
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