Category Physics

World’s Fastest Hydrogen Sensor could pave the way for Clean Hydrogen Energy

Fast and accurate sensors will be crucial in a sustainable society where hydrogen is an energy carrier. Hydrogen gas is produced by water that is split with the help of electricity from wind power or solar energy. The sensors are needed both when the hydrogen is produced and when it is used, for example in cars powered by a fuel cell. In order to avoid the formation of flammable and explosive gas when hydrogen is mixed with air, the hydrogen sensors need to be able to quickly detect leaks.
Credit: Yen Strandqvist/Chalmers University of Technology

Hydrogen is a clean and renewable energy carrier that can power vehicles, with water as the only emission. Unfortunately, hydrogen gas is highly flammable when mixed with air, so very efficient and effective sensors are needed...

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Wonder Material: Individual 2D Phosphorene Nanoribbons made for the first time

Individual phosphorene nanoribbons.
Credit: Watts et al.

Tiny, individual, flexible ribbons of crystalline phosphorus have been made by UCL researchers in a world first, and they could revolutionise electronics and fast-charging battery technology.

Since the isolation of 2D phosphorene, which is the phosphorus equivalent of graphene, in 2014, more than 100 theoretical studies have predicted that new and exciting properties could emerge by producing narrow ‘ribbons’ of this material. These properties could be extremely valuable to a range of industries.

In a study published today in Nature, researchers from UCL, the University of Bristol, Virginia Commonwealth and University and École Polytechnique Fédérale de Lausanne, describe how they formed quantities of high-quality ribbons ...

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Meet Blue, the Low-cost, human-friendly Robot designed for AI

Blue the robot’s arms – about the size of a human bodybuilder’s — were designed to take advantage of recent advances in artificial intelligence to master intricate, human-centered tasks, like folding towels.
Credit: Philip Downey

Blue’s creators hope the new robot will accelerate the development of robotics for the home. Researchers have created a new low-cost, human friendly robot named Blue, designed to use recent advances in artificial intelligence and deep reinforcement learning to master intricate human tasks, all while remaining affordable and safe enough that every AI researcher could have one. The team hopes Blue will accelerate the development of robotics for the home.

Robots may have a knack for super-human strength and precision, but they still struggle with some basic h...

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Cold Plasma can Kill 99.9% of Airborne Viruses

Civil and Environmental Engineering Professor Herek Clack (left) and members of his team set up a lab-scale non-thermal plasma device that has previously been proven to achieve greater than 99% inactivation of an airborne viral surrogate, MS2 phage, a virus that infects E.coli bacteria at the Barton Farms family pig farm in Homer, MI. Image credit: Robert Coelius/Michigan Engineering
Civil and Environmental Engineering Professor Herek Clack (left) and members of his team set up a lab-scale non-thermal plasma device that has previously been proven to achieve greater than 99% inactivation of an airborne viral surrogate, MS2 phage, a virus that infects E.coli bacteria at the Barton Farms family pig farm in Homer, MI. Image credit: Robert Coelius/Michigan Engineering

Dangerous airborne viruses are rendered harmless on-the-fly when exposed to energetic, charged fragments of air molecules, University of Michigan researchers have shown. They hope to one day harness this capability to replace a century-old device: the surgical mask.

The U-M engineers have measured the virus-killing speed and effectiveness of nonthermal plasmas – the ionized, or charged, particles that...

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