Don't be too surprised that high-altitude balloons would look alike. It's like airliners. In technology, it's called "convergent evolution." Systems begin to look alike because the solutions to problems are often the same, no matter who is working the problem.
Don't be too surprised that high-altitude balloons would look alike. It's like airliners. In technology, it's called "convergent evolution." Systems begin to look alike because the solutions to problems are often the same, no matter who is working the problem.