This reminds me of a project, that a group of us talked about, but never did.
I used to work on a radio system with a very large and powerful phased array transmitter, the ground mat being hundreds of metres on each side. We though it would be fun to stick a bunch of fluorescent tubes into the ground. In theory we should have been able to see the antenna beam sweeping across the ground mat, as it was steered in difference directions and the tubes lit up. It would have been a very cool demonstration, but like so many other projects we only talked about it.
I used to work on a radio system with a very large and powerful phased array transmitter, the ground mat being hundreds of metres on each side. We though it would be fun to stick a bunch of fluorescent tubes into the ground. In theory we should have been able to see the antenna beam sweeping across the ground mat, as it was steered in difference directions and the tubes lit up. It would have been a very cool demonstration, but like so many other projects we only talked about it.