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.
Three people have been arrested and charged in the killing of B.C. Sikh activist Hardeep Singh Nijjar – as authorities continue investigating potential connections to the Indian government.
Commissioner Marie-Josee Hogue released her interim report examining foreign election interference on Friday. Here are five elements of the issue that Hogue says she needs to further probe before she can make conclusions or recommendations.
York Regional Police say they are continuing to search for a suspect in an auto theft investigation who was captured on video running over a police officer in Toronto last month.
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A funeral is being held today for hockey broadcasting legend Bob Cole in his hometown of St. John's, N.L.
TD Bank Group could be hit with more severe penalties than previously expected, says a banking analyst after a report that the investigation it faces in the U.S. is tied to laundering illicit fentanyl profits.
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Foreign interference by China did not affect the overall results of the 2019 and 2021 general elections won by Justin Trudeau's Liberals, a federal commission of inquiry has found.
Drew Carey took over as host of 'The Price Is Right' and hopes he’s there for life. 'I'm not going anywhere,' he told 'Entertainment Tonight' of the job he took over from longtime host Bob Barker in 2007.
Three people have been arrested and charged in the killing of B.C. Sikh activist Hardeep Singh Nijjar – as authorities continue investigating potential connections to the Indian government.
A new pilot program which will notify the public of missing and murdered Indigenous women, girls, two-spirit and gender-diverse people is set to be implemented in Manitoba.
As Wegovy becomes available to Canadians starting Monday, a medical expert is cautioning patients wanting to use the drug to lose weight that no medication is a ''magic bullet,' and the new medication is meant particularly for people who meet certain criteria related to obesity and weight.
York Regional Police say they are continuing to search for a suspect in an auto theft investigation who was captured on video running over a police officer in Toronto last month.
The first Arctic and Offshore Patrol Vessel for Canada's Pacific fleet will officially be commissioned in a ceremony featuring Princess Anne, the sister of King Charles.
A judge has decided the trial of a man accused of killing four women in Winnipeg will still be heard by a jury.
They're lounging, biting each other and generally making a ruckus in numbers not seen in more than a decade. And don't even think about stealing their anchovies.
Former White House official and Donald Trump adviser Hope Hicks took the stand Friday at the former president's hush money trial and recounted how his 2016 campaign became embroiled in a political firestorm over a recording in which he boasted about grabbing women without their permission.
Police ordered pro-Palestinian protesters to clear out of a tent encampment at New York University early Friday, a move that follows weeks of demonstrations and police confrontations at college campuses nationwide that have resulted in more than 2,300 arrests.
A prominent surgeon in Gaza has died in an Israeli prison after being held for more than four months, according to Palestinian prisoners’ groups, which decried his death as part of a “systematic targeting” of health care workers.
Just like the Olympic athletes, the cyberwarriors that will be crucial for the success of the Paris Games are deep into training for the big event.
A police officer who was involved in clearing protesters from a Columbia University administration building earlier this week fired his gun inside the hall, a spokesperson for District Attorney Alvin Bragg's office confirmed Thursday.
Foreign interference by China did not affect the overall results of the 2019 and 2021 general elections won by Justin Trudeau's Liberals, a federal commission of inquiry has found.
Three people have been arrested and charged in the killing of B.C. Sikh activist Hardeep Singh Nijjar – as authorities continue investigating potential connections to the Indian government.
Commissioner Marie-Josee Hogue released her interim report examining foreign election interference on Friday. Here are five elements of the issue that Hogue says she needs to further probe before she can make conclusions or recommendations.
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New Brunswick's official languages commissioner says the province's online health-care service is violating provincial law by failing to consistently provide services in French.
Google's preeminence as an internet search engine is an illegal monopoly propped up by more than US$20 billion spent each year by the tech giant to lock out competition, U.S. Justice Department lawyers argued at the closings of a high-stakes antitrust lawsuit.
Many species of animals form social groups and behave collectively: An elephant herd follows its matriarch, flocking birds fly in unison, humans gather at concert events. Even humble fruit flies organize themselves into regularly spaced clusters, researchers have found.
China on Friday launched a lunar probe to land on the far side of the moon and return with samples that could provide insights into differences between the less-explored region and the better-known near side.
Quebec singing legend Celine Dion has praised a Montreal DJ for creating a mashup featuring one of her songs with U.K. producer Majestic.
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Alberta Ballet's double-bill production of 'Der Wolf' and 'The Rite of Spring' marks not only its final show of the season, but the last production for twin sisters Alexandra and Jennifer Gibson.
TD Bank Group could be hit with more severe penalties than previously expected, says a banking analyst after a report that the investigation it faces in the U.S. is tied to laundering illicit fentanyl profits.
Ontario is set to clamp down on bad employers with big fines. Labour Minister David Piccini says his government will introduce legislation next week that will see fines increased for violations of the Employment Standards Act.
Skyrocketing airfare prices are linked to heightened competition and rising food and fuel, according to the CAA.
Two registered nurses from Ottawa and Kingston have been an integral part in the delivery of a baby on board a flight heading to Dubai.
Italy's Ministry of Health has banned the popular wellness trend of "puppy yoga" amid concerns that the puppies used in the practice could be exploited and mistreated.
A Montreal astrologer and horoscope writer just got a boost on his retirement budget, after winning Loto-Quebec’s Grande-Vie prize, which comes in the form of $1,000 a day for life.
A funeral is being held today for hockey broadcasting legend Bob Cole in his hometown of St. John's, N.L.
Rick Bowness of the Winnipeg Jets, Rick Tocchet of the Vancouver Canucks and Andrew Brunette of the Nashville Predators are the finalists for this season's Jack Adams Award.
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Drivers in Saskatchewan will now lose their licence for a week and their vehicle for a month if they are caught committing certain high-speed and dangerous offences on the road.
Auto sales last month totalled 164,000 units, higher than April 2023, which was the weakest month for sales last year.
Rolls-Royce is vastly expanding its factory in Chichester, England. The BMW subsidiary is adding five new buildings with construction planned to start next year.
Alberta Ballet's double-bill production of 'Der Wolf' and 'The Rite of Spring' marks not only its final show of the season, but the last production for twin sisters Alexandra and Jennifer Gibson.
A British Columbia mayor has been censured by city council – stripping him of his travel and lobbying budgets and removing him from city committees – for allegedly distributing a book that questions the history of Indigenous residential schools in Canada.
Three men in Quebec from the same family have fathered more than 600 children.
A group of SaskPower workers recently received special recognition at the legislature – for their efforts in repairing one of Saskatchewan's largest power plants after it was knocked offline for months following a serious flood last summer.
A police officer on Montreal's South Shore anonymously donated a kidney that wound up drastically changing the life of a schoolteacher living on dialysis.
Since 1932, Montreal's Henri Henri has been filled to the brim with every possible kind of hat, from newsboy caps to feathered fedoras.
Police in Oak Bay, B.C., had to close a stretch of road Sunday to help an elephant seal named Emerson get safely back into the water.
Out of more than 9,000 entries from over 2,000 breweries in 50 countries, a handful of B.C. brews landed on the podium at the World Beer Cup this week.
Raneem, 10, lives with a neurological condition and liver disease and needs Cholbam, a medication, for a longer and healthier life.
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A California man has been sentenced to 27 months in prison for attempting to smuggle a ghost gun across the Canadian border last year, authorities announced Friday.
Rick Tocchet drew ample respect during his 18 seasons as an NHL player.
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Toronto Mayor Olivia Chow is responding to criticism over Toronto‘s efforts to decriminalize drugs in the wake of the opioid crisis, saying it misses a much more urgent need.
Video of a suspect lighting a Richmond Hill barbershop on fire earlier this week has been released by police.
An Okotoks resident has been charged in relation to a shooting Wednesday at a residence in Sheep River Court.
Uninspected meat found at several halal food stores and grocers in Calgary has been destroyed and the affected facilities have been cleared to open.
Alberta Ballet's double-bill production of 'Der Wolf' and 'The Rite of Spring' marks not only its final show of the season, but the last production for twin sisters Alexandra and Jennifer Gibson.
Two registered nurses from Ottawa and Kingston have been an integral part in the delivery of a baby on board a flight heading to Dubai.
The Ottawa Police Service is asking the public for help in identifying a suspect allegedly involved with a sexual assault that happened at a home on Albert Street three months ago.
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Quebec Premier François Legault reiterated that the pro-Palestinian encampment at McGill University must be dismantled while police remain 'on the lookout for new developments.'
A Quebec judge overseeing the trial of a person accused of killing a cyclist with their car has raised concerns that an amendment to the province's language charter could cause 'undue delays' for trials held in English.
Quebec singing legend Celine Dion has praised a Montreal DJ for creating a mashup featuring one of her songs with U.K. producer Majestic.
More than 15 years after the death of Michelle Hadwen, police are still searching for the person responsible for her death.
The federal government will invest $21 million into the King Thunderbird Centre.
A woman was killed after being hit by a truck on Highway 642 Thursday evening on Alexander First Nation.
The New Brunswick government has delayed a plan to force certain people into addiction treatment.
Fishery officers seized nearly 30 kilograms of elvers at a Yarmouth County, N.S., holding facility on Wednesday, arresting three people in the process.
A New Brunswick mayor is defending her town's new policy that will prohibit Pride banners to be displayed on lampposts in the community.
A new pilot program which will notify the public of missing and murdered Indigenous women, girls, two-spirit and gender-diverse people is set to be implemented in Manitoba.
A judge has decided the trial of a man accused of killing four women in Winnipeg will still be heard by a jury.
The Winnipeg Fire Paramedic Service’s newest recruit is not quite two years old with friendly brown eyes, a wagging tail and a sunny, blonde coat.
Premier Scott Moe's Saskatchewan Party has received millions of more dollars in donations compared with rivals ahead of this year's election.
The North Central Family Centre (NCFC) has launched a capital campaign to help aid in the completion of a major project they are in the midst of building.
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More than 100 teachers at the Waterloo Region District School Board (WRDSB) are learning they have been declared surplus will likely be out of a job as of Aug. 12.
Kaitlyn Braun, the Brantford, Ont. woman who previously admitted to deceiving doulas and is facing similar charges again, is not seeking bail at this time, her lawyer said Friday.
Thick grey smoke billowed over Elmira Friday morning as first responders raced to the scene of a large farm fire on Allemang Place.
A lesser known fixture of Saskatoon's skyline is coming down for repairs and renovations.
Richelieu Hardware Canada Ltd. was fined a hefty $260,000 for a workplace safety violation leading to a serious worker injury.
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The jury deciding the fate of a man responsible for a fatal firebombing in Sudbury found him guilty of three counts of first-degree murder on Friday afternoon.
A New Hamburg family is feeling deflated after buying a new Toyota hybrid truck.
Three men from southern Ontario and a man from Texas have been fined a total of $16,700 for illegal hunting and fishing in September 2021.
Neighbours west of Dorchester are demanding action after an alleged attack by dogs.
A two-vehicle crash involving a transport truck and a passenger vehicle closed Dundas Street, just west of Thamesford, late Thursday afternoon.
Around 6:45 p.m. on Thursday, first responders were called to the scene near the intersection of Pigram Road and Salford Road in South-West Oxford Township.
On Thursday night, 30 firefighters battled a destructive fire that broke out in a facility in Bracebridge Ont.
Around 120 LifeLabs workers from across Simcoe County are taking strike action after negotiations for a new contract broke down this week.
Police are investigating a failed home invasion involving two armed suspects in the area of Bathurst Street and Mulock Drive in Newmarket.
Essex County OPP investigators are asking for help in identifying an individual involved in a shooting incident in a Leamington parking lot.
Three people have been arrested and charged in the killing of B.C. Sikh activist Hardeep Singh Nijjar – as authorities continue investigating potential connections to the Indian government.
A joint traffic initiative in a construction zone on Highway 401 resulted in dozens of charges.
Three people have been arrested and charged in the killing of B.C. Sikh activist Hardeep Singh Nijjar – as authorities continue investigating potential connections to the Indian government.
A family claims it’s concerned for their loved one in a Nanaimo-based long-term care facility as they work with staff and Island Health to resolve some of their complaints.
The first Arctic and Offshore Patrol Vessel for Canada's Pacific fleet will officially be commissioned in a ceremony featuring Princess Anne, the sister of King Charles.
Out of more than 9,000 entries from over 2,000 breweries in 50 countries, a handful of B.C. brews landed on the podium at the World Beer Cup this week.
An emaciated dachshund is now recovering thanks to a Good Samaritan who found the pup near a biking trail in Kelowna, according to the BC SPCA.
Search and rescue crews have been called in after a vehicle belonging to a missing senior was located near a rural intersection outside of Kelowna Tuesday.
Lethbridge police say impaired driving is to blame in a fatal crash that killed a 25-year-old man on Thursday.
The bell at Erle Rivers High School in Milk River, Alta., will ring for the last time on June 26, as the 114-year-old school is scheduled to be torn down to make way for a new K-12 school.
Years of hard work paid off for Tanner McLachlan after he heard his name called at the NFL draft last Saturday.
The Chi-Cheemaun ferry arrived at Manitoulin Island on Friday morning to kick off its 50th season on the Georgian Bay.
Phase 1 of the reconstruction of Queen Street in downtown Sault Ste. Marie is getting underway, although it will be scaled down from the original plan.
Social services agencies across the north are sounding the alarm after funding cuts on homelessness programs were recently published.
A funeral is being held today for hockey broadcasting legend Bob Cole in his hometown of St. John's, N.L.
Richard Martin is spending this year's fishing season on land after he says a Royal Newfoundland Constabulary officer broke his left leg in three places during a protest last month that shut down the provincial legislature.
Tributes continue to pour in for Bob Cole as his family has confirmed a funeral will be held for the legendary broadcaster Friday in St. John's, N.L.
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