Half of Canadians have negative opinion of latest Liberal budget: poll
A new poll suggests the Liberals have not won over voters with their latest budget, though there is broad support for their plan to build millions of homes.
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.
A new poll suggests the Liberals have not won over voters with their latest budget, though there is broad support for their plan to build millions of homes.
Appointing a trusted person to help with financial obligations can give you peace of mind. In his personal finance column for CTVNews.ca, Christopher Liew outlines the key benefits of naming a confidant to take over your financial responsibilities, if the need ever arises.
A Toronto couple are speaking out about their “extremely dangerous” experience on board a sinking tour boat in the Dominican Republic last week.
A Winnipeg man said a single date gone wrong led to years of criminal harassment, false arrests, stress and depression.
The federal government has added $36.4 million to a program designed to support people who have been seriously injured or killed by vaccines since the end of 2020.
A photographer who worked for Megan Thee Stallion said in a lawsuit filed Tuesday that he was forced to watch her have sex, was unfairly fired soon after and was abused as her employee.
An Ontario senior’s attempt to get technical help online led him into a spoofing scam where he lost $25,000. Now, he’s sharing his story to warn others.
A Minnesota state senator and former broadcast meteorologist told police that she broke into her stepmother's home because her stepmother refused to give her items of sentimental value from her late father, including his ashes, according to burglary charges filed Tuesday.
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.
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.
Kevin the cat has been reunited with his family after enduring a harrowing three-day ordeal while lost at Toronto Pearson International Airport earlier this week.
Molly Knight, a Grade 4 student in Nova Scotia, noticed her school library did not have many books on female athletes, so she started her own book drive in hopes of changing that.