B.C. seeks ban on public drug use, dialing back decriminalization
The B.C. NDP has asked the federal government to recriminalize public drug use, marking a major shift in the province's approach to addressing the deadly overdose crisis.
Researchers at Tokyo Metropolitan University have created ‘tweezers of sound’ that can move objects without physical contact.
The technology creates non-contact manipulation of small objects with sound waves by using an array of ultrasound transducers.
The transducers, an object that converts energy from one form to another, allowed researchers to generate a 3D acoustic (sound) field which trapped and lifted small polystyrene balls from a reflective surface.
While the ability to move objects without touching them has been done previously on a microscopic level using light, known as “optical trapping,” using sound had not been explored as thoroughly.
In the study published in the June volume of the Japanese Journal of Applied Physics, researchers found that sound waves can be applied to a wider range of sizes and materials, and is precise enough to move millimetre-sized particles.
While acoustic levitation and manipulation show promise for lab settings and other fields, the technological challenges make it difficult. Researcher have to individually and accurately control large arrays of ultrasound transducers in real-time and get the correct sound fields to lift objects.
Researchers at Tokyo Metropolitan University created a new approach to mitigate those issues and lift millimetre-sized objects by using a hemispherical array of transducers and splitting the signal emitted into manageable blocks.
By using an inverse filter on the signal emitted from the transducers, the researchers were able to find the best level of amplitude to manipulate the objects from a distance.
The study posits that this new method will help push acoustic trapping into being a practical tool in the lab and in various industries.
The B.C. NDP has asked the federal government to recriminalize public drug use, marking a major shift in the province's approach to addressing the deadly overdose crisis.
An orca whale calf that has been stranded in a B.C. lagoon for weeks after her pregnant mother died swam out on her own early Friday morning.
Donald Trump's defence team attacked the credibility Friday of the prosecution's first witness in his hush money case, seeking to discredit testimony detailing a scheme between Trump and a tabloid to bury negative stories to protect the Republican's 2016 presidential campaign.
Sophie Gregoire Trudeau says there is 'still so much love' between her and Prime Minister Justin Trudeau, as they navigate their post-separation relationship co-parenting their three children.
More than 115 people who viewed the solar eclipse in Ontario earlier this month experienced eye damage after the event, according to eye doctors in the province.
An Ontario man who took out a loan to pay for auto repairs said his car was repossessed after he missed two payments.
George Mallory is renowned for being one of the first British mountaineers to attempt to scale the dizzying heights of Mount Everest during the 1920s. Nearly a century later, newly digitized letters shed light on Mallory’s hopes and fears about ascending Everest.
The Canadian Transportation Agency has hit a record high of more than 71,000 complaints in a backlog. The quasi-judicial regulator and tribunal tasked with settling disputes between customers and the airlines says the backlog is growing because the number of incoming complaints keeps increasing.
An American Airlines flight attendant was indicted Thursday after authorities said he tried to secretly record video of a 14-year-old girl using an airplane bathroom last September.
Mounties in Nanaimo, B.C., say two late-night revellers are lucky their allegedly drunken antics weren't reported to police after security cameras captured the men trying to steal a heavy sign from a downtown business.
A property tax bill is perplexing a small townhouse community in Fergus, Ont.
When identical twin sisters Kim and Michelle Krezonoski were invited to compete against some of the world’s most elite female runners at last week’s Boston Marathon, they were in disbelief.
The giant stone statues guarding the Lions Gate Bridge have been dressed in custom Vancouver Canucks jerseys as the NHL playoffs get underway.
A local Oilers fan is hoping to see his team cut through the postseason, so he can cut his hair.
A family from Laval, Que. is looking for answers... and their father's body. He died on vacation in Cuba and authorities sent someone else's body back to Canada.
A former educational assistant is calling attention to the rising violence in Alberta's classrooms.
The federal government says its plan to increase taxes on capital gains is aimed at wealthy Canadians to achieve “tax fairness.”
At 6'8" and 350 pounds, there is nothing typical about UBC offensive lineman Giovanni Manu, who was born in Tonga and went to high school in Pitt Meadows.