More futuristic thinking from good old Hugo Gernsback.
A bone-conduction headphone for hearing-impaired people with conductive losses. Unfortunate picture; looks like old Gramps is getting electrocuted or forcibly Alzheimered.
Simple instructions. Magnetic headphones were being obsolesced by speakers in the early '30s, so most households had a leftover pair of phones. Take off one phone, pad the side of the headband, and glue a washer onto the diaphragm of the other phone. Presto! Bone conduction!
It definitely worked, but it didn't go anywhere.
Oopz, it did. Aftershokz.
The new verzion lookz even dumber, but now it'z mispeledz and haz a Z at the end so itz COOOOOOLZ.
Labels: Asked and answered