ScienceDaily: Strange Science News |
- Bionic arm restores natural behaviors in patients with upper limb amputations
- Study shows a whale of a difference between songs of birds and humpbacks
- When walked on, these wooden floors harvest enough energy to turn on a lightbulb
- Hidden bacterial hairs power nature’s ‘electric grid’
- How ant teeth cut like a scalpel
| Bionic arm restores natural behaviors in patients with upper limb amputations Posted: 01 Sep 2021 11:26 AM PDT Researchers have engineered a bionic arm for patients with upper-limb amputations that allows wearers to think, behave and function like a person without an amputation, according to new findings. The bionic system combines three important functions - intuitive motor control, touch and grip kinesthesia, the intuitive feeling of opening and closing the hand. |
| Study shows a whale of a difference between songs of birds and humpbacks Posted: 01 Sep 2021 08:37 AM PDT These findings challenge the results of past studies that vocal variations in humpback whale songs provide information about a singer's reproductive fitness. Instead, the morphing appears to reveal the precise locations and movements of singers from long distances and may enhance the effectiveness of song parts as sonar signals. |
| When walked on, these wooden floors harvest enough energy to turn on a lightbulb Posted: 01 Sep 2021 08:37 AM PDT Researchers are tapping into an unexpected energy source right under our feet: wooden floorings. Their nanogenerator enables wood to generate energy from our footfalls. They also improved the wood used in the their nanogenerator with a combination of a silicone coating and embedded nanocrystals, resulting in a device that was 80 times more efficient -- enough to power LED lightbulbs and small electronics. |
| Hidden bacterial hairs power nature’s ‘electric grid’ Posted: 01 Sep 2021 08:37 AM PDT A hair-like protein hidden inside bacteria serves as a sort of on-off switch for nature's 'electric grid,' a global web of bacteria-generated nanowires that permeates all oxygen-less soil and deep ocean beds, researchers report. 'The ground beneath our feet, the entire globe, is electrically wired,' said the senior author of the new article. |
| How ant teeth cut like a scalpel Posted: 01 Sep 2021 06:00 AM PDT The built-in tools of ants have been imaged in atomic detail for the first time by materials scientists. |
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