Acoustic tractor beams could allow humans to levitate in the near future

January 22, 2018 by  
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Researchers from the University of Bristol are taking us into the future with a new discovery that could pave the way for human levitation. The powerful new technology uses tractor beams of sound to levitate liquids or even large objects – like a human beings – in mid-air. It’s like something straight out of a science fiction movie. Up until now, acoustic tractor beams could only lift tiny objects – anything larger than the wavelength would become rapidly unstable. But this new technology utilizes acoustic vortices that shift rapidly to hold and move objects. It’s kind of like trapping an object in a powerful tornado of sound, with a silent eye and loud sound on the exterior. By quickly changing the rate of rotation, scientists can stabilize the tractor beam and even manipulate it to hold larger objects. Related: $70 DIY acoustic tractor beam moves objects with sound Besides being exciting in terms of sci-fi fun, the technology could also have some immediate useful applications like moving surgical instruments or drug capsules in the body. “In the future, with more acoustic power it will be possible to hold even larger objects. This was only thought to be possible using lower pitches making the experiment audible and dangerous for humans,” said Senior Research Associate Dr. Mihai Caleap. + Physical Review Letters Via Phys.org Images via Physical Review Letters

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Acoustic tractor beams could allow humans to levitate in the near future

Suspended City aims to bring Rio de Janeiro in harmony with nature

March 10, 2010 by  
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Eco Factor: Sustainable architecture designed to have minimal impact on the environment. Designed by Coolie Calihan and Charles Johnson, the Cidade Suspensa (Suspended City in Brazilian Portuguese), aims to refine urban architecture and bring it in harmony with nature and the environment

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Suspended City aims to bring Rio de Janeiro in harmony with nature

H3AR proposes multipurpose ‘Watertower’ skyscraper for Sudan

March 10, 2010 by  
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Eco Factor: Sustainable skyscraper to be made using natural materials. The shortage of water and land has resulted in political unrest in Sudan for decades. However, the recent discovery of the world’s tenth largest underground lake in the region by scientists from Boston University can end the conflict if the lake is managed correctly

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H3AR proposes multipurpose ‘Watertower’ skyscraper for Sudan

Student invents life preserver powered by solar energy

March 10, 2010 by  
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Eco Factor: Life preserver keeps the user warm using solar energy. A Taiwanese student has developed a high-tech life preserver that looks like an ordinary plastic life preserver but has been designed to be charged using solar energy to keep its user warm even in freezing water. Dubbed LIFEON, the life preserver features a chlorophyll solar cell that is automatically charged within 10 seconds after coming in contact with water

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Student invents life preserver powered by solar energy

Carbon nanotubes cuffs could tap waste heat from exhaust pipes for electricity

March 10, 2010 by  
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Eco Factor: Thermocell to generate electricity from waste heat. Apart from developing technology to harvest abundant solar and wind energy, there are a few researchers who are concentrating on waste materials, such as heat, which can be tapped to generate renewable electricity. Researchers at the University of Texas at Dallas have come up with a concept that could generate electricity from waste heat coming out of exhaust pipes.

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Carbon nanotubes cuffs could tap waste heat from exhaust pipes for electricity

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