This Computer Is Made Entirely Out of Chemicals

January 8, 2020

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The researcher Juan Pérez-Mercader at Harvard University is a big fan of birds, their beautiful plumage, the way that they fly. But when humans wanted to make things that fly, he points out, they didn’t make birds, they made airplanes. Pérez-Mercader wants to do for biological cells what the Wright brothers did for birds. He wants to create chemical systems that can mimic the properties of bacterial life, without solving the tricky problem of how to create life itself. One key characteristic of life is the way that it handles information and does its own kind of computing deep inside cells. Now, Pérez-Mercader and his colleague Marta Dueñas-Díez have shown how nonliving chemical systems can also compute. They have created the first example of a vat that computes—a chemical Turing machine.

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nexAir, LLC

In 1996, two family-owned Memphis-based companies combined operations to form nexAir. By merging Mid-South Oxygen Company (founded in 1946) and Standard Welders Supply/Standard Oxygen Service (founded in 1940), nexAir became the second-largest privately owned distributor of gases and welding supplies in the United States. Today nexAir is proud to serve as the largest privately owned supplier of high-quality industrial, specialty, medical, and bulk gases, dry ice, welding equipment, welding supplies, and medical equipment in the United States. With strategically placed retail locations, nexAir can be responsive to each customer’s specific needs. We draw on the expertise of hundreds of experienced salespeople, welding analysts, cryogenic technicians, and medical-equipment specialists to provide solutions that save time and money. From strong regional support to local decision-making, nexAir delivers performance under pressure. Industrial, Medical, and Specialty Gases, Cryopreservation Eq

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Spotlight

nexAir, LLC

In 1996, two family-owned Memphis-based companies combined operations to form nexAir. By merging Mid-South Oxygen Company (founded in 1946) and Standard Welders Supply/Standard Oxygen Service (founded in 1940), nexAir became the second-largest privately owned distributor of gases and welding supplies in the United States. Today nexAir is proud to serve as the largest privately owned supplier of high-quality industrial, specialty, medical, and bulk gases, dry ice, welding equipment, welding supplies, and medical equipment in the United States. With strategically placed retail locations, nexAir can be responsive to each customer’s specific needs. We draw on the expertise of hundreds of experienced salespeople, welding analysts, cryogenic technicians, and medical-equipment specialists to provide solutions that save time and money. From strong regional support to local decision-making, nexAir delivers performance under pressure. Industrial, Medical, and Specialty Gases, Cryopreservation Eq

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