Read further and watch the video. And how do we know he did not actually build a working model? :)
Can a phonograph work with a broken needle?
“Read further and watch the video. And how do we know he did not actually build a working model? :)”
I built a working model of a time machine. I sent it back a few decades so I could impress my 9th grade science teacher.
Unfortunately, I don’t remember ever getting it!