Slagelse Viking Fortress, 980 AD, still standing.
Trelleborg, a Viking ring fortress west of Slagelse on the Danish island of Zealand, is one of only seven known similar structures. In its day, the fortress was situated on a peninsula that jutted into the swampy area between two rivers. The swamp was connected to the Great Belt by a lake that could be navigated by Viking ships. Trelleborg is believed to have been ordered built by King Harald Bluetooth in the year 980 AD and it might have commanded the Great Belt and its sea traffic, between the islands of Zealand and Funen.
Scientists created high-tech wood.
Scientists created high-tech wood by removing the lignin from natural wood using hydrogen peroxide. The remaining wood is very dense and has a tensile strength of around 404 megapascals, making it 8.7 times stronger than natural wood and comparable to metal structure materials including steel. http://bit.ly/2VNYt0J
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A technology that functions like a brain? In these times of artificial intelligence, this no longer seems so far-fetched – for example, when a mobile phone can recognise faces or languages. With more complex applications, however, computers still quickly come up against their own limitations. One of the reasons for this is that a computer traditionally has separate memory and processor units – the consequence of which is that all data have to be sent back and forth between the two. In this respect, the human brain is way ahead of even the most modern computers because it processes and stores information in the same place – in the synapses, or connections between neurons, of which there are a million-billion in the brain. An international team of researchers from the Universities of Münster (Germany), Oxford and Exeter (both UK) have now succeeded in developing a piece of hardware which could pave the way for creating computers which resemble the human brain. The scientists managed to produce a chip containing a network of artificial neurons that works with light and can imitate the behaviour of neurons and their synapses.
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A good read.
When the tension rises, unexpected things can happen – not least when it comes to gold atoms. Researchers from, among others, Chalmers University of Technology, Sweden, have now managed, for the first time, to make the surface of a gold object melt at room temperature.
Ludvig de Knoop, from Chalmers’ Department of Physics, placed a small piece of gold in an electron microscope. Observing it at the highest level of magnification and increasing the electric field step-by-step to extremely high levels, he was interested to see how it influenced the gold atoms.
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And little did they know it was true.
In 1974, science fiction writer Arthur C. Clarke makes the bold claim that one day computers will allow people to work from home and access their banking records.
Nano Tech Drones
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I wonder if Birds, lizards and frogs would eat them?
This Robotic Surgeon can Sew a Grape back together.
Robot Surgeon can Stitch a Grape Back Together
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Jimmy and Sophia the Robot chat and then perform a duet of ‘Say Something’.