Can't find your car? Grab the car remote control and place it on your head. (Really.)

This may seem like a mental trick for the character of the hero Jedi, but what would you do if you didn't remember where you parked your car in the parking lot among hundreds of cars. How do you find and unlock them? There is no magic trick here, it is about pure science. It is really possible to unlock your car using your brain as a broker. Holding the car key remotely close to your head doubles its range and range because the human skull acts as an amplifier! The oral cavity and fluid in your skull do a kind of crazy magic for the distant signal when you hold the key on your chin. It's a bit like why old TV antennas in the shape of a "rabbit's ear" give you better reception when you touch them.

The science behind it

It's an unusual trick, perhaps a partisan act, but it can be useful in real situations that happen thousands of times a day. Pauli, who works in the University of Nottingham's School of Physics and Astronomy, says you can use your brain as a radio transmitter and increase the range of the remote control due to interactions between electromagnetic waves and water. The remote control works by sending electromagnetic waves to your car. If you move away from the vehicle, the signal emitted becomes weaker and weaker. But water can expand the range of electromagnetic waves, and your brain is filled with water.

When waves pass through water, they pull positively charged hydrogen ions and negatively charged oxygen ions in opposite directions and push them up and down. This means that it behaves like a radio transmitter where, as it goes up and down, up and down, it radiates energy. So the water in your head generates an electromagnetic wave that operates at the same frequency as the remote control's wave. The waves then overlap together and overlap constructively, expanding the range of your car key. A jug of water can increase the range of the remote control, which is unlikely to have in case of an emergency but keep that in mind.

However, if this trick doesn't work, motorists may want to consider replacing the battery inside their keychain.

Another trick you may not know your car key is capable of doing

Used car company Dick Lovett highlighted useful advice. For example, with temperatures rising this summer, many owners can open all their windows before getting into the car by holding down the unlock button.

In addition, if the driver forgets to raise the windows after leaving their car, this trick can also be used to do so.

With the temperature inside the car rising rapidly after a short period of parking in the sun, the company explained why this trick is not considered a gimmick.

The company says: "This is ideal during the warmer months to avoid direct access to a hot car. This trick works on many different models and is not limited to one manufacturer.

Is it safe to release an electrical signal from your brain?

Scientists answer yes. The car's remote control produces only a small amount of electrical energy for a short period of time, and they claim your brain can handle it.

The WHO concluded that "current evidence does not confirm the existence of any health consequences as a result of exposure to low-level electromagnetic fields." (Of course, the internet is full of opinions, but mainstream scientific research seems confident that your remote control won't bother you.)

We immediately experienced this ourselves. Although you may feel like an idiot when you point your key at your chin, this trick works. We tried it from about 300 feet away, yet we saw the lights of our car flashing.

Go and try this trick!