ScienceDaily: Strange Science News |
- Saving Africa's wild dogs -- with urine
- Princess and the Pea? Invisibility cloak prevents an object from being felt
- Can we see the arrow of time? Algorithm can determine, with 80 percent accuracy, whether video is running forward or backward
| Saving Africa's wild dogs -- with urine Posted: 20 Jun 2014 07:31 AM PDT The endangered African wild dog is increasingly coming into conflict with humans, partly because it is difficult to fence them out. But research shows that an unusual approach to keeping them away from people and livestock may offer hope. Promising experiments show that scent marking is more effective as a barrier than fences. |
| Princess and the Pea? Invisibility cloak prevents an object from being felt Posted: 20 Jun 2014 07:23 AM PDT In the past years, invisibility cloaks were developed for various senses. Objects can be hidden from light, heat or sound. However, hiding of an object from being touched still remained to be accomplished. Scientists have now succeeded in creating a volume in which an object can be hidden from touching similar to a pea under the mattress of a princess. |
| Posted: 19 Jun 2014 02:26 PM PDT Einstein's theory of relativity envisions time as a spatial dimension, like height, width, and depth. But unlike those other dimensions, time seems to permit motion in only one direction: forward. This directional asymmetry -- the "arrow of time" -- is something of a conundrum for theoretical physics. |
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