They may seem like Rube Goldberg machines today, but mechanical adding machines were considered the closest thing to computers not long ago: heaps of gears, levers, and springs engineered to do the ...
As part of All Things Considered's series on now-obsolete sounds, listeners recall fond memories of the old mechanical adding machine. We asked listeners to send sounds from older technologies, things ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback