ScienceDaily: Top Technology News |
- Fermi's latest gamma-ray census highlights cosmic mysteries
- Research on US nuclear levels after Fukushima could aid in future nuclear detection
- Rebalancing the nuclear debate through education
- Taming light: Mastering the fine structuring of ultrashort light fields
| Fermi's latest gamma-ray census highlights cosmic mysteries Posted: 09 Sep 2011 04:51 PM PDT Every three hours, NASA's Fermi Gamma-ray Space Telescope scans the entire sky and deepens its portrait of the high-energy universe. Every year, the satellite's scientists reanalyze all of the data it has collected, exploiting updated analysis methods to tease out new sources. These relatively steady sources are in addition to the numerous transient events Fermi detects, such as gamma-ray bursts in the distant universe and flares from the sun. Earlier this year, the Fermi team released its second catalog of sources detected by the satellite's Large Area Telescope, producing an inventory of 1,873 objects shining with the highest-energy form of light.  |
| Research on US nuclear levels after Fukushima could aid in future nuclear detection Posted: 09 Sep 2011 04:51 PM PDT What do increased atmospheric radioactivity concentrations in Washington state tell us about what happened in the Fukushima nuclear disaster? For one expert, the story is in the numbers.  |
| Rebalancing the nuclear debate through education Posted: 09 Sep 2011 08:14 AM PDT Better physics teaching with a particular emphasis on radioactivity and radiation science could improve public awareness through education of the environmental benefits and relative safety of nuclear power generation, according to scientists. Experts have suggestsed that it might then be possible to have a less emotional debate about the future of the industry that will ultimately reduce our reliance on fossil fuels.  |
| Taming light: Mastering the fine structuring of ultrashort light fields Posted: 09 Sep 2011 04:49 AM PDT Physicists have generated for the first time "white" light pulses. They are able to control their field on a time scale shorter than an optical oscillation. These new tools hold promise for unprecedented control of the motion of electrons.  |
| You are subscribed to email updates from ScienceDaily: Top Technology News To stop receiving these emails, you may unsubscribe now. | Email delivery powered by Google |
| Google Inc., 20 West Kinzie, Chicago IL USA 60610 | |
No comments:
Post a Comment