Sounds like a Jedi mind trick but what will you do if you don’t remember where you parked your car in a parking lot in between hundreds of cars. How you will find it and unlock it. There is no magic trick here, it’s pure science. It’s really possible to unlock your car using your brain as a middle man. Holding a remote car key fob to your head doubles its range because the human skull acts as an amplifier! The oral cavity and fluids in your skull do some kind of crazy wizardry to the remote signal when you're holding the key fob to your chin. It's kind of like the reason why those ancient "rabbit ear" TV antennas gave you better reception when you were touching them.

It’s an unusual trick, perhaps a party act, but it can prove helpful in real situations that occur thousands of times a day. You can use your brain like a radio transmitter and increase the range of the key remote because of interactions between electromagnetic waves and water, said Bowley, who worked at Nottingham University’s School of Physics and Astronomy. The key remote works by sending electromagnetic waves to your car. If you walk away from the car, the signal coming out gets weaker and weaker and weaker. But water can extend the range of electromagnetic waves and your brain is full of water. When the waves go through water, they pull positively charged hydrogen ions and negatively charged oxygen ions in opposite directions and push them upwards and downwards. That means they’re behaving rather like a radio transmitter as they’re going up and down, up and down, radiating energy. The water in your head carries an electromagnetic wave that acts on the same frequency as the remote’s wave. The waves then add together and extend the range of your car key. A jug of water can further boost the remote’s range, which you are unlikely to have in the event of an emergency but bear it in mind.