I used to believe that when you saw electric wires along a road in a group, held together in places by a holder of some kind, that the holder was mud that someone had thrown up on the wires. I wondered why the mud was always so uniform and why someone would do that.
A childhood belief about technology

others believed things like this
- When I was younger I thought the disc holder for our TV would explode if you put too many discs in. Anon
- I believed that I had a fake right big toe, having lost my real one in the plug holder (thanks Helen!)— Mike
- I used to think that when you sent a fax, the paper went through the wires.— em
- I used to believe that bird perched on telephone wires to keep their feet warmAnon
- i used to think that the road sign "dangerous" was actually "dang-er-roos" a kind of bouncy marsupial— owen cash
- I use to believe if I ate something electronic Id have electric powers — jack L