--- title: "Professor Says He’s Invented a Real-Life “Freeze Ray”" description: "A professor at the University of Virginia claims to have created a \"freeze ray\"-like device that was apparently inspired by Mr. Freeze." date: "2023-08-04" modified: "2023-08-04" authors: - name: "Victor Tangermann" job_title: "Senior Editor" link: "https://futurism.com/authors/victor" url: "https://futurism.com/the-byte/professor-invented-real-life-freeze-ray" categories: - "Robots and Machines" tags: - "cooling laser" - "Plasma" - "the digest" --- # Professor Says He’s Invented a Real-Life “Freeze Ray” ![A professor at the University of Virginia claims to have created a "freeze ray"-like device that was apparently inspired by Mr. Freeze.]() *\Image: Warner Bros.\* ## Let's Kick Some Ice A professor at the University of Virginia claims to have created a "freeze ray"-like device that was apparently inspired by Mr. Freeze, the [pun-loving villain]() of "Batman" fame. But before you get too excited about a frosty beam that can instantly freeze your enemies at a distance like Arnold Schwarzenegger's role in the 1997 film "Batman & Robin," the reality is a bit more muted. Patrick Hopkins, a mechanical and aerospace engineering professor at the University of Virginia, was looking for a new way for electronics in spacecraft and high-altitude jets to say cool. "That’s the primary problem right now," he said in a [statement about the research](). "A lot of electronics on board heat up, but they have no way to cool down." His solution, for which he was awarded an appreciable $750,000 grant from the US Air Force, is a tiny plasma laser that can cool a surface — counterintuitively — by striking it. Still cool, as it were, but in a somewhat different way. ## Cold Boys Club The problem with being in space or an extremely thin atmosphere is that there's "very little air that can cool," Hopkins explained. Bringing a bunch of coolant isn't a great solution, either, "because that’s going to increase the weight, and you lose efficiency." A prototype device, as detailed in a [new paper]() his team published in the journal *ACS Nano*, takes advantage of an unusual physical property of plasma, which is commonly referred to as the "fourth state of matter." When a plasma jet quickly strikes a surface "like a laser beam" or "lightning bolt," per Hopkins, it can actually chill it before heating it up. In previous experiments, Hopkins and his colleagues found that a purple jet of plasma cooled a gold-plated surface before heating it up — and puzzling yet replicable result. The researchers suggest that the cooling must've been the result of blasting off a tiny surface layer, much in the same way a body cools off due to water evaporating off of the skin after a dip in the pool. "Evaporation of water molecules on the body requires energy; it takes energy from body, and that’s why you feel cold," Hopkins explained in the statement. "In this case, the plasma rips off the absorbed species, energy is released, and that’s what cools." So far, the team has found that surface temperatures can be lowered by several degrees in just a few microseconds using the jet — which may just be enough to make a difference in outer space or at extremely high altitudes. **More on plasma:** *[We're in Awe of This Massive Tornado of Plasma on the Surface of the Sun]()* ## Author I've been at Futurism since 2017, where my role has evolved to encompass design, writing, and increasingly editing. I've always been fascinated by space exploration and advanced transportation, which I've leaned into by interviewing luminaries in those fields while closely following the dimensions of policy and regulation that allow next-generation projects to succeed -- or, sometimes, to fail. I'm also keenly interested in the effects of generative AI on society, policies, and democratic institutions, as well as clean energy, physics and biology, and the vagaries of tech leadership. My work for Futurism has been cited by publications including Ars Technica, Gizmodo, PC Magazine, Jalopnik, Fox News, and the New York Post. I spent my childhood living in locations including Manila, the Philippines, and Geneva, Switzerland, attended McGill University, and now live in Toronto, Canada. Before Futurism I worked at AskMen and a small photography studio. In my free time, I'm an avid gardener, foodie, and craft beer lover, as well as a maker of artisanal hot pepper sauces. I have a magnificent dog named Freida. ### Author social links [Bluesky]()