Optic neuritis is an inflammation of the optic nerve, the bundle of nerve fibers that transmits visual information from your eye to your brain.
Release: Erica Kane single. Producer: Speaker Knockerz. This past thursday, South Carolina rapper/producer/songwriter Derek Speaker Knockerz McAllister, was found dead of a heart attack in his garage at 19 years old. It's probably best not to speculate on why a 19 year old would die of a heart attack.
Rating Newest Oldest. Best Answer: The knock sensor is basically a microphone. Its there to listen for spark knock which is also called detonation, pinging, and pre ignition. This is the condition inside the engine where the fuel begins to burn before its supposed to. It sounds like someone rattling a can of marbles.