The concept of traveling through underground tunnels at incredible speeds may seem like the stuff of science fiction, but researchers are already exploring the potential of using optical technology to guide hypersonic jets through tunnel systems. This groundbreaking approach could revolutionize air travel as we know it, offering unprecedented speed and efficiency. But how feasible is this ambitious vision? What are the potential challenges and implications of implementing such a system? Join us as we delve into the world of tunneling hypersonic jets and the exciting possibilities it may hold for the future.

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source: Phys.org