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In an effort to create robots capable of controlling their own life-cycles, researchers have developed squishy little devices that can melt themselves into a puddle of goo.

“We have mimicked death in a life cycle where the robot could end itself,” Seoul National University engineer Min-Ha Oh told Peter Grad at Tech Xplore.

This ‘death’ is triggered by internal ultraviolet LEDs that destabilize the chemical composition of the robot. This process takes about an hour though, so it’s likely we have a few decades before we’ll see robots being employed as the kinds of vanishing spies proposed by the researchers.

GE Aerospace has demonstrated a worm-like robot that could one day inspect and repair jet engines. The Sensiworm (Soft ElectroNics Skin-Innervated Robotic Worm) is designed to serve as “extra sets of eyes and ears” for service operators as they examine the insides of aircraft. GE says the soft robot can minimize downtime and perform less invasive inspections and, in the future, make repairs itself.

The company compares the Sensiworm’s role in aerospace engineering and repairs to how soft robotics have allowed for minimally intrusive patient surgeries. “These technologies are enabling less invasive inspection and repair of jet engines on the wing to reduce downtime,” the company wrote. GE says the worm-like machine could give operators “virtually unfettered access” to inspect engines without disassembling them.

Resembling an inchworm, the Sensiworm (remote-controlled by operators) can crawl across various engine parts, including rotating wind turbine blades. It can sense and avoid obstacles automatically, reach places where gravity may stop other tools (thanks to its suction-cup feet) and measure the thickness of thermal barrier coatings. GE says it can even sniff out gas leaks. “With their soft, compliant design, they could inspect every inch of a jet engine, transmitting live video and real-time data about the condition of parts that operators typically check,” the company wrote.

A world-beating deposit of lithium along the Nevada–Oregon border could meet surging demand for this metal, according to a new analysis.

An estimated 20 to 40 million tonnes of lithium metal lie within a volcanic crater formed around 16 million years ago. This is notably larger than the lithium deposits found beneath a Bolivian salt flat, previously considered the largest deposit in the world.

‘If you believe their back-of-the-envelope estimation, this is a very, very significant deposit of lithium,’ says Anouk Borst, a geologist at KU Leuven University and the Royal Museum for Central Africa in Tervuren, Belgium. ‘It could change the dynamics of lithium globally, in terms of price, security of supply and geopolitics.’