I remember an exhibit at the old OMSI location (Oregon Museum of Science and Industry) that was a telephone handset you would speak into. You would attempt to r

I remember an exhibit at the old OMSI location (Oregon Museum of Science and Industry) that was a telephone handset you would speak into. You would attempt to read something that was printed on the exhibit (The Gettysburg Address?) and your voice would be played back to you with a slight delay. No matter how hard I tried, I was reduced to a babbling wreck with a matter of seconds. It was totally maddening!