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ultrasonic 3D levitation Japanese researchers have developed a way of not only levitating, but also moving objects three dimensionally using sound waves. The device uses four arrays of speakers to make soundwaves that intersect at a focal point that can be moved up, down, left, and right using external controls. And to human ears the device is completely quiet, as it uses ultrasound.

Occupational exposure to ultrasound in excess of 120 dB may lead to hearing loss. Exposure in excess of 155 dB may produce heating effects that are harmful to the human body, and it has been calculated that exposures above 180 dB may lead to death.[45] The UK’s independent Advisory Group on Non-ionising Radiation (AGNIR) produced a report in 2010, which was published by the UK Health Protection Agency (HPA). This report recommended an exposure limit for the general public to airborne ultrasound sound pressure levels (SPL) of 70 dB (at 20 kHz), and 100 dB (at 25 kHz and above).

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“We shape our tools”, the old maxim goes, “and thereafter our tools shape us.” But what if both man and tools could shape and guide each other — as equals?

That’s the dream of the Senior Director of Advanced Technology at InvenSense, a TDK Group Company, Dr. Peter G. Hartwell, who believes we are heading into a profound new age of man-machine collaboration, led by breakthroughs in sensor technology. “Some problems simply can’t be solved using human senses or machine capabilities alone; we need a fusion of the two,” says Hartwell.

The problems which Hartwell targets are at the very core of a life well lived: customized health care, more energy-efficient infrastructure, productive workplaces, safer cities, and improved environmental monitoring.

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As might be expected, the CDC is spooked by these bacteria. If they spread, as infections are want to do, the agency is tasked with stopping them, and that’s no easy task.

On April 3, CDC Principal Deputy Director Anne Schuchat announced the agency’s latest containment strategy, which recommends an aggressive response to the appearance of even a single case of drug-resistant infection. The germs usually appear in hospital settings, so the CDC says health care workers should be prepared to contain the drug-resistant microbes before they can travel beyond a hospital’s doors.

“When there’s a fire somebody needs to put it out,” said Schuchat.

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Australia’s major cities are growing more rapidly than ever before, gaining three million residents in a decade. Concerns about the risks to their long-term liveability and health are growing too. Is the consistent placing of Australian cities at the top of most liveable city rankings a reason for complacency?

The fastest-growing city, Melbourne, is experiencing unprecedented growth and yet has topped The Economist Intelligence Unit global liveability ranking for seven years running. However, much like Australia’s remarkable record of 26 years of continuous economic growth, many of the policy and institutional reforms that delivered this liveability legacy occurred decades ago.

Australia is now undergoing its third great wave of population growth, putting pressure on infrastructure, services and the environment. During the past two waves of growth, in the late-19th and mid-20th centuries, cities implemented visionary responses. It’s largely because of these past phases of planning and investment that our cities have until now been able to sustain their liveability and a reasonably healthy natural environment.

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How can we help educate the general public?


___ Why you shouldn’t bother with memory or brain health supplements (Consumer Reports): The signs of memory loss can be bewildering and scary: misplaced keys, a forgotten street name, that task you suddenly can’t remember. It’s no wonder that, according to the Nutrition Business Journal, sales of supplements touted.

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The initiative, which launched on March 20, will start by providing 100,000 of its 1.3 million residents with information on their genetic risk for certain diseases. Genetic information from the project will first be delivered to a family doctor, so that patients will receive counseling about what their results actually mean and how they can better adapt their lifestyle to avoid illness.


The nation of Estonia is establishing a program that provides both free genetic testing and health advice to all citizens based on their results.

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The Falcon 9 rocket carrying the SpaceX Dragon cargo craft stands atop its launch pad counting down to a 4:30 p.m. EDT liftoff today to the International Space Station. The Expedition 55 crew is preparing for its arrival on Wednesday while continuing a variety of advanced space research aboard the orbital lab today.

NASA’s Kennedy Space Center in Florida is hosting the 14th launch of a SpaceX commercial cargo mission to the space station. Astronauts Norishige Kanai and Scott Tingle are practicing the maneuvers and procedures necessary to capture Dragon with 2 Canadarm2 when it arrives at 7 a.m. Wednesday morning. Their fellow flight engineers Drew Feustel and Ricky Arnold joined them later in the afternoon to review the cargo they’ll transfer back and forth after they open the hatches to Dragon.

Feustel spent the better part of his day testing algorithms on a pair of tiny internal satellites that could be used to detect spacecraft positions and velocities. Arnold strapped himself into an exercise cycle for an exertion in space study then collected his blood samples for stowage and later analysis.

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