It happens to the best of us: You park a few rows from the supermarket entrance and make a mental note of your spot, only to return an hour later and find that your car isn't where you thought it was. The solution is both odd and simple: Hold your key fob to your head and press the lock button. Believe it or not, you’ll hear your car beep, even if it’s far away. That’s because car remotes work by sending out a short range radio signal that usually travels a little over 65 feet before it diminishes and it can’t reach your car anymore. You can, however, use your head to amplify it, increasing the distance it can travel. Just like the rest of your body, your head contains a lot of water, and when you hold the key fob against your head, the electromagnetic waves from your car remote interact with the water molecules in your head. That moves them around, creating a wave that connects with the remote wave, amplifying and increasing its range. Is it really okay to use your head as a radio? Since it’s such a quick use and exposure is low-level, it’s unlikely you have anything to worry about. To put things in perspective, using your hair dryer is more dangerous, since they emit EMF radiation. Consequently, using your head to find your car is no more dangerous than using your hair dryer to dry your hair. Pick your battles.
