A German team has turned tales of invisibility cloaks, made famous by Grimm’s fairy tales and Harry Potter, into a potential – albeit a small – reality. About 0.00005 inches in fact.
A German team has turned tales of invisibility cloaks made, famous by Grimm’s fairy tales and Harry Potter, into a potential – albeit a small – reality. About 0.00005 inches in fact. "Researchers at Karlsruhe Institute of Technology in Germany say they have rendered (almost) invisible a bump in a layer of gold measuring 0.00004 inches high by 0.00005 inches across, by ‘cloaking’ it in a new material. The ‘cloak’ is a structure of crystals with air spaces in between, almost like a pile of logs, which is able to bend light. When placed over a small layer of gold, the tiny bump could not be detected at infrared frequencies – very near to the spectrum of light visible to humans. Crucially, this new ‘metamaterial’ – artificially engineered to have properties not found in nature – was able to disguise the bump in three dimensions. Previous ‘cloaks’ have hidden objects when looked at head-on, but did not work if viewed from the side. While in this case the bump was so tiny that a magnifying lens was needed to see it, the lead researcher, Tolga Ergin, told the US journal Science there was no reason why the technology could not be developed to make much larger objects vanish. ‘In principle, the cloak design is completely scalable; there is no limit to it,’ Ergin said. Developing the fabrication technology so that the crystals were smaller could ‘lead to much larger cloaks’."
Both schizophrenics and people with a common personality type share similar brain patterns.
- A new study shows that people with a common personality type share brain activity with patients diagnosed with schizophrenia.
- The study gives insight into how the brain activity associated with mental illnesses relates to brain activity in healthy individuals.
- This finding not only improves our understanding of how the brain works but may one day be applied to treatments.
It's a development that could one day lead to much better treatments for osteoporosis, joint damage, and bone fractures.
- Scientists have isolated skeletal stem cells in adult and fetal bones for the first time.
- These cells could one day help treat damaged bone and cartilage.
- The team was able to grow skeletal stem cells from cells found within liposuctioned fat.
Gut bacteria play an important role in how you feel and think and how well your body fights off disease. New research shows that exercise can give your gut bacteria a boost.
- Two studies from the University of Illinois show that gut bacteria can be changed by exercise alone.
- Our understanding of how gut bacteria impacts our overall health is an emerging field, and this research sheds light on the many different ways exercise affects your body.
- Exercising to improve your gut bacteria will prevent diseases and encourage brain health.
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