Scientists Develop Bizarre Helmet for Brain Scan

A brain-scanning MRI machine at Carnegie Mellon University in Pittsburgh, November 26, 2014.Credit: Keith Srakocic / AP
A brain-scanning MRI machine at Carnegie Mellon University in Pittsburgh, November 26, 2014.Credit: Keith Srakocic / AP
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Scientists Develop Bizarre Helmet for Brain Scan

A brain-scanning MRI machine at Carnegie Mellon University in Pittsburgh, November 26, 2014.Credit: Keith Srakocic / AP
A brain-scanning MRI machine at Carnegie Mellon University in Pittsburgh, November 26, 2014.Credit: Keith Srakocic / AP

A research team at the University of Boston’s Photonics Center developed an imaging tool that could replace the traditional form of MRI scan and ensure more accurate results and less anxiety.

Usually, patients undergoing such a medical procedure could experience stress and discomfort, however, the new helmet-like tool, which marks a revolution in the field of medical imaging, is characterized with a funny look that alleviates stress. During the study published Feb. 12 in the scientific journal Advanced Material, the researchers reported the metamaterial used in the design, packing in a ton of physics, engineering, and mathematical know-how. The design was overseen by Xin Zhang, professor of mechanical engineering at BU's Photonics Center.

“The metamaterials used in the helmet is a type of engineered structure created from small unit cells that might be unspectacular alone, but when grouped together in a precise way, get new superpowers not found in nature. Metamaterials, for instance, can bend, absorb, or manipulate waves -- such as electromagnetic waves, sound waves, or radio waves. Each unit cell is typically arranged in a repeating pattern in rows and columns; they can be designed in different sizes and shapes, and placed at different orientations, depending on which waves they're designed to influence,” explained Zhang.

The materials used in the helmet include a component that blocks sound without stopping airflow (imagine quieter jet engines and air conditioners) and a magnetic metamaterial that can improve the quality of magnetic resonance imaging (MRI) machines used for medical diagnosis. These materials were deployed in a helmet-like device, which fits over a person's head and can be worn during a brain scan, boosts MRI performance, creating crisper images that can be captured at twice the normal speed. According to Zhang, the helmet makes MRIs less costly and more time efficient for doctors, radiologists, and patients -- all while improving image quality, which will help make the technology more widely available, particularly in the developing countries.



Macron to Push for Ban on Social Media for Under-15s after School Stabbing 

France's President Emmanuel Macron gestures as he speaks during the presentation of the European Pact for the Oceans at the third UN Ocean Conference in Nice, French Riviera, Monday, June 9, 2025. (AP)
France's President Emmanuel Macron gestures as he speaks during the presentation of the European Pact for the Oceans at the third UN Ocean Conference in Nice, French Riviera, Monday, June 9, 2025. (AP)
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Macron to Push for Ban on Social Media for Under-15s after School Stabbing 

France's President Emmanuel Macron gestures as he speaks during the presentation of the European Pact for the Oceans at the third UN Ocean Conference in Nice, French Riviera, Monday, June 9, 2025. (AP)
France's President Emmanuel Macron gestures as he speaks during the presentation of the European Pact for the Oceans at the third UN Ocean Conference in Nice, French Riviera, Monday, June 9, 2025. (AP)

French President Emmanuel Macron said he would push for European Union regulation to ban social media for children under the age of 15 after a fatal stabbing at a school in eastern France, the latest such violent attack that left the country reeling.

Macron said in an interview late on Tuesday that he hoped to see results within the next few months.

"If that does not work, we will start to do it in France. We cannot wait," he told the France 2 public broadcaster, hours after a fatal stabbing at a middle school in Nogent, Haute-Marne.

Police questioned a 14-year-old student on Tuesday over the knifing of a 31-year-old school aide during a bag search for weapons.

Prime Minister Francois Bayrou told parliament the incident was not an isolated case. Macron said social media was one of the factors to blame for violence among young people.

Writing on social media platform X after the interview, Macron said such regulation was backed by experts. "Platforms have the ability to verify age. Do it," he wrote.

Macron's comments come amid a wave of measures in countries around the world aimed at curbing social media use among children.

Australia last year approved a social media ban for under-16s after an emotive public debate, setting a benchmark for jurisdictions around the world with one of the toughest regulations targeting Big Tech.

Although most social media do not allow children under 13 to use their platforms, a report by Australia's online safety regulator found children easily bypass such restrictions.