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The robot features eight adjustable water jets in its central and head regions, with a flexible firehose directed by a control unit on a trailing wheeled cart.


Functioning at a rate of 6.6 liters per second, the nozzles expel water with a pressure reaching up to one megapascal. At the tip of the hose, a combination of a traditional camera and a thermal imaging camera is integrated, facilitating the identification and location of the fire. This technological integration enhances the Dragon Firefighter’s firefighting capabilities, according to the team.

Learning process

The inaugural testing of the system took place during the opening ceremony of the World Robot Summit 2020 (WRS2020), held in September 2021 in Fukushima. Dragon Firefighter “successfully extinguished [49 min 0 s to 51 min 0 s] the ceremonial flame, consisting of fireballs lit by another robot, at a distance of four meters,” said a statement.

“We found that just like in mice, human tears contain a chemical signal that blocks conspecific male aggression. This goes against the notion that emotional tears are uniquely human,” the authors stated.

Overall, the study concluded that the scent of women’s tears might contain chemical signals that can influence men’s behavior by reducing aggressive tendencies.

The company launched 23 of its Starlink internet satellites on a Falcon 9 rocket that had flown 18 times before, breaking its own record for the most flights by a single booster.


SpaceX has achieved a new milestone in its quest to reuse rockets and reduce the cost of spaceflight. The company launched 23 Starlink internet satellites on a Falcon 9 rocket that had flown 18 times before, breaking its record for the most flights by a single booster.

Falcon 9’s first stage has landed on the Just Read the Instructions droneship, completing the first 19th launch and landing of a booster pic.twitter.com/WoVx0R0Esj — SpaceX (@SpaceX) December 23, 2023

Joe McEntee visits the Lawrence Berkeley National Laboratory to learn about QUANT-NET’s plan to create a quantum network tested for distributed quantum computing applications in the US. Joe McEntee visits Lawrence Berkeley National Laboratory (Berkeley Lab) in California to check out progress on the enabling quantum technologies.

A team of researchers, led by Professor Hyong-Ryeol Park from the Department of Physics at UNIST has introduced a technology capable of amplifying terahertz (THz) electromagnetic waves by over 30,000 times. This breakthrough, combined with artificial intelligence (AI) based on physical models, is set to revolutionize the commercialization of 6G communication frequencies.

Collaborating with Professor Joon Sue Lee from the University of Tennessee and Professor Mina Yoon from the Oak Ridge National Laboratory, the research team successfully optimized the THz nano-resonator specifically for 6G communication using advanced optimization technology.

The research findings have been published in the online version of Nano Letters.