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TORONTO: Meet the smallest ever remote-controlled walking robot

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TORONTO: Engineers have unveiled the smallest remote-controlled walking robot ever created – even tinier than a flea.

The tiny robotic crab can “walk, bend, twist, turn and jump” according to engineers from Northwestern University in the US. It could signal the beginning of a new era of microscale robotics.

The little machine isn’t powered by miniaturised hardware and electronics, but instead by a shape-memory alloy material that transforms when it is heated.

How do they move?

The researchers use a scanned laser beam to rapidly heat the device at different locations across its body to make them transform and effectively force the robot to move.

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One of the tricks the researchers used was covering the device in a thin coating of glass that forces that part of the robot’s structure to return to its deformed shape after it cools.

“Because these structures are so tiny, the rate of cooling is very fast. In fact, reducing the sizes of these robots allows them to run faster,” explained Professor John Rogers, who led the experimental research.

Part of the achievement was in the manufacturing process, which involves bonding flat precursors on to slightly stretched rubber – which forces the crabs to take on a 3D shape like a pop-up book.

The work remains exploratory and experimental, however.

Despite the comparable range of movement and size, the crab bot is much slower than a flea and has “an average speed of half its body length per second,” according to Professor Yonggang Huang, who led the theoretical work.

“This is very challenging to achieve at such small scales for terrestrial robots,” Prof Huang added.

Created on a whim

Northwestern University stated: “Although the research is exploratory at this point, the researchers believe their technology might bring the field closer to realising micro-sized robots that can perform practical tasks inside tightly confined spaces.”

“You might imagine micro-robots as agents to repair or assemble small structures or machines in industry or as surgical assistants to clear clogged arteries, to stop internal bleeding or to eliminate cancerous tumours – all in minimally invasive procedures,” added Prof Rogers.

Millimetre-sized robots resembling inchworms, crickets, and beetles were also created – but Prof Rogers’ and Huang’s students settled on peekytoe crabs.

“We can build walking robots with almost any sizes or 3D shapes,” Prof Rogers said.

“But the students felt inspired and amused by the sideways crawling motions of tiny crabs. It was a creative whim.”

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SAN FRANCISCO: Indian-Origin Founder Unveils Wearable Device That Records Every Moment Of Your Life

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SAN FRANCISCO: Advait Paliwal, an Indian-origin entrepreneur, has recently introduced a wearable AI device called Iris, designed to provide users with “infinite memory.” According to Paliwal, the device captures “pictures every minute,” which are stored either on the device or in the cloud, allowing users to preserve life’s small moments and recognize patterns often overlooked.

In a series of tweets, Mr Paliwal, who is based in San Francisco, explained that Iris not only organises the photos into a timeline but also uses AI to generate captions and help users recall forgotten details. Additionally, the device features a “focus mode,” which detects when the wearer is distracted and offers reminders to refocus.

Mr. Paliwal shared that the design of Iris is inspired by the evil eye symbol. He developed the device over the summer at the Augmentation Lab in Cambridge, part of a two-month AI and hardware talent accelerator program. After the program, Mr Paliwal presented Iris to over 250 attendees at the MIT Media Lab, where he received positive feedback, with many expressing interest in owning the device.

Highlighting its potential, Mr Paliwal suggested that Iris could offer safety and health benefits, such as aiding doctors in understanding patients’ daily habits or ensuring workplace safety compliance. In elderly care, the device could help caregivers monitor patients without being intrusive.

However, after Mr Paliwal shared his post on X (formerly Twitter), reactions were mixed. While some users expressed excitement, others raised privacy concerns. One person commented, “It’s an interesting concept, but I wouldn’t want to interact with someone wearing this, taking a photo every minute.” Paliwal responded by pointing out that people are already “constantly taking mental photos.”

 Others were more enthusiastic, with one user noting, “I’ve been searching for a device like this for years! A picture every minute should be enough if it archives, organizes, labels, and retrieves them.” Another user praised the concept, saying, “Love the idea. The design and name are perfect. Great work!”

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TEXAS: Meet Gopi Thotakura, Indian Who Will Soon Go To The Edge Of Outer Space

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TEXAS: In an unprecedented leap towards the stars, pilot Gopichand Thotakura is set to become the first Indian to venture into space as a tourist. Selected as part of the elite crew for Blue Origin’s New Shephard-25 (NS-25) mission, Mr Thotakura will make a journey beyond the Earth’s atmosphere along with five other candidates.

Gopichand Thotakura, an entrepreneur and pilot, joins a distinguished lineup of 31 candidates who have flown beyond the Karman line, the boundary between Earth’s atmosphere and outer space.

A connoisseur of the skies since his youth, Mr Thotakura’s passion for flight saw him defy conventional norms, learning to pilot aircraft before mastering the art of driving. To further his passion, he graduated from Embry-Riddle Aeronautical University with a Bachelor of Science in Aeronautical Science.

Describing him, Blue Origins wrote, “Gopi is a pilot and aviator who learned how to fly before he could drive. Gopi pilots bush, aerobatic, and seaplanes, as well as gliders and hot air balloons, and has served as an international medical jet pilot. A lifelong traveler, his most recent adventure took him to the summit of Mt. Kilimanjaro.”

Born in Vijayawada, the 30-year-old currently runs Preserve Life Corp, a global center for holistic wellness and applied health located near Hartsfield-Jackson Atlanta International Airport

Each member of the NS-25 mission will carry a postcard on behalf of Blue Origin’s foundation, Club for the Future, symbolizing the collective dreams and aspirations of young minds worldwide.

From an environmental standpoint, the NS-25 mission heralds a new era of sustainability in space exploration.

“Nearly 99% of New Shepard’s dry mass is reused, including the booster, capsule, engine, landing gear, and parachutes. New Shepard’s engine is fueled by highly efficient liquid oxygen and hydrogen. During flight, the only byproduct is water vapor with no carbon emissions,” Blue Origins said in their statement.

The launch date for the mission is yet to be announced.

The mission also includes former Air Force Captain Ed Dwight, who was selected by US President John F Kennedy in 1961 as the country’s first Black astronaut candidate but was never granted the opportunity to fly to space.

Blue Origin has carried out six crewed flights — some passengers were paying customers and others were guests — since July 2021, when CEO Jeff Bezos himself took part in the first.

The company is also developing a heavy rocket for commercial purposes called New Glenn, with the maiden flight planned for next year.

 This rocket, which measures 98 meters (320 feet) high, is designed to carry payloads of as much as 45 metric tons into low Earth orbit.

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WASHINGTON: Who Is Aroh Barjatya, Indian-Origin Researcher Who Led Recent NASA Mission

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WASHINGTON: Aroh Barjatya, an India-born researcher, led NASA’s mission that launched sounding rockets during the recent total solar eclipse.

The US space agency launched three sounding rockets during the total solar eclipse on April 8 to study what happens to the Earth’s upper atmosphere when sunlight dims momentarily over a part of the planet.

Who Is Aroh Barjatya?

A professor of engineering physics, Aroh Barjatya directs the Space and Atmospheric Instrumentation Lab at the Embry-Riddle Aeronautical University in Florida.

Born to a chemical engineer, Ashok Kumar Barjatya, and his wife Rajeshwari, Aroh Barjatya went to schools across India, including in Patalganga near Mumbai, Hyderabad, Jaipur, Pilani, and Solapur.

He went on to get a degree in electronics engineering from Solapur’s Walchand Institute of Technology.

In 2021, he moved to the US for a master’s degree in electrical engineering at Utah State University. He later did his PhD in spacecraft instrumentation from the same university.

“In addition to leading an externally funded research enterprise, as a tenured faculty I have mentored and engaged young minds through inquiry-based learning tactics, created a new area of concentration within the Engineering Physics programme at ERAU… My mission is to advance the state of the art in space research and education and to inspire the next generation of space engineers and scientists,” he wrote on his LinkedIn profile.

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