ScienceDaily: Strange Science News |
- Female bonobos send mixed messages to males
- Public urinal generates electricity from urine
- Theoretical climbing rope could brake falls
- 'Origami' is reshaping DNA's future
| Female bonobos send mixed messages to males Posted: 06 Jul 2016 08:47 AM PDT In several species of primates, males often discern when to mate with a female based on cyclical changes in the size and firmness of her sexual swelling -- a visual signal of a female's probability to conceive. Primatologists have now investigated for the first time the relationship between ovarian hormones and sexual swellings in wild female bonobos. The likelihood that a female bonobo ovulates during her maximum swelling phase is much lower than in the closely related chimpanzees. Swellings are thus no reliable fertility signal for males and allow females to follow their own agenda when choosing a mate. |
| Public urinal generates electricity from urine Posted: 06 Jul 2016 06:22 AM PDT Urine can be transformed into electricity with the help of bacterial metabolism, thanks to a new device. A test cubicle was installed at Glastonbury festival, but the final aim is to improve sanitation facilities in Developing World countries or in areas where there is limited electricity generation, such as refugee camps. |
| Theoretical climbing rope could brake falls Posted: 06 Jul 2016 06:16 AM PDT Mathematicians have shown it is theoretically possible to design ideal climbing ropes to safely slow falling rock and mountain climbers like brakes decelerate a car. They hope someone develops a material to turn theory into reality. |
| 'Origami' is reshaping DNA's future Posted: 06 Jul 2016 06:16 AM PDT Ten years after Paul Rothemund knitted tiny smiley faces from strands of DNA, the field of DNA origami is coming of age. |
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