Mobile Phone in Your Teeth!

thumbtack writes "News.com is running a story that reports that British researchers claim to have developed an implant that could be placed in a tooth and used as a mobile phone. According to the article, the sound would be transferred to the inner ear by bone resonance, and could be listened too anytime anywhere, with complete privacy." This is awesome. Course it would kinda suck if your phone rang when you were asleep.

Comments

Re:Hearing aid technology?

[Pedersen]

The sound resonates through your skull; but those vibrations are picked-up by your eardrum, which is a tightly pulled film attached to the nerves that translate its vibrations to sound.

Normally, I don't get so upset at this sort of thing, but for some reason, idiocy like this has pissed me off today. No, the eardrum does NOT translate vibrations to sound, or any other such nonsense.What the eardrum (or timpanum) does is to act as the first step in hearing something.

Sound waves travel through the air, striking the eardrum. The eardrum vibrates, causing the bones of the middle ear to vibrate as well. Now, I can't remember the order of vibration, but I can tell you that one of those three bones is attached directly to the eardrum, and it, in turn, causes the other two to vibrate. Finally (and I'll admit that my knowledge becomes more hazy here), the third bone is attached directly to the cochlea (or inner ear), which translates those vibrations from the third bone directly into nerve impulses, which are sent to the brain.

The eardrum itself is nothing more than the starting point for the whole sequence. If you can directly vibrate the bones correctly, you can create a sound which nobody else can hear.