Sounds that have disappeared
If you are a certain age – probably over 45 or so – I think you will be quite struck by the links below. You will find sounds that used to be very prevalent, and now are almost completely gone from our North American world. And if you have children, it is almost guaranteed they have never heard these sounds.
Check them out:
Museum of Endangered Sounds
And let me know if you can come up with any other sounds that have disappeared.