ScienceDaily: Top Technology News |
- A better device to detect ultraviolet light
- New kind of microscope uses neutrons
- Ultraviolet light to the extreme: Experiments may help in the design of new sources of extreme ultraviolet light
- Surprisingly simple scheme for self-assembling robots
- Laying down a discerning membrane
- Astronomers discover large 'hot' cocoon around a small baby star
| A better device to detect ultraviolet light Posted: 04 Oct 2013 12:43 PM PDT Researchers have developed a new photodiode that can detect in just milliseconds a certain type of high-energy ultraviolet light, called UVC, which is powerful enough to break the bonds of DNA and harm living creatures. |
| New kind of microscope uses neutrons Posted: 04 Oct 2013 09:50 AM PDT Researchers have developed a new concept for a microscope that would use neutrons -- subatomic particles with no electrical charge -- instead of beams of light or electrons to create high-resolution images. |
| Posted: 04 Oct 2013 09:50 AM PDT When you heat a tiny droplet of liquid tin with a laser, plasma forms on the surface of the droplet and produces extreme ultraviolet (EUV) light, which has a higher frequency and greater energy than normal ultraviolet. Now, researchers have mapped this EUV emission and developed a theoretical model that explains how the emission depends on the three-dimensional shape of the plasma. In doing so, they found a previously untapped source of EUV light. |
| Surprisingly simple scheme for self-assembling robots Posted: 04 Oct 2013 07:52 AM PDT Researchers find that small cubes with no exterior moving parts can propel themselves forward, jump on top of each other, and snap together to form arbitrary shapes. |
| Laying down a discerning membrane Posted: 04 Oct 2013 06:08 AM PDT One of the thinnest membranes ever made is also highly discriminating when it comes to the molecules going through it. Engineers have constructed a graphene oxide membrane less than 2 nanometers thick with high permeation selectivity between hydrogen and carbon dioxide gas molecules. |
| Astronomers discover large 'hot' cocoon around a small baby star Posted: 04 Oct 2013 06:03 AM PDT Astronomers have observed an infrared dark cloud and discovered a baby star surrounded by a large hot cloud. This hot cloud is about ten times larger than those found around typical solar-mass baby stars. |
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