There’s 60 feet between the Whisper Dishes in the Big Science Park outside at CoSI.
That’s Charlie in the teal shirt. He whispers and I can hear him, clear as a bell, all those sixty feet away. Amazing.




“Whisper dishes, also known as acoustic mirrors, are parabolic-shaped devices that collect and reflect sound waves, allowing for communication over distances, even at a whisper. They work by focusing sound waves onto a focal point, where they can be easily heard, and then reflecting those waves to another dish, where they are focused and amplified again”
Very cool. Wonder if they have one in Pittsburgh.
What fun!
It was Sheree. I was amazed how well it worked.
Very interesting. dc
I thought it was, too.
You brought back happy memories of using dishes like these at the Science Museum in London ❤
Oh that’s very cool!
This, in kid’s lingo, is way cool.
Definitely. I found the science amazing.