How to catch electricity while moving? Imagine power lines without wires. The energy is converted into a directed beam of microwaves and sent to the receiver. There, the radiation is caught by a rectenna - a special antenna that converts it back into an electric current. It is similar to radio communication, but instead of information it transmits energy. The first rockets appeared in the 60s. The American engineer William Brown demonstrated an unusual experiment: a small helicopter model stayed at a height of 15 meters for ten hours, receiving energy from a microwave source from the ground. Later, engineers learned to transmit tens of kilowatts in this way over a distance of more than a kilometer. However, the widespread use of the technology is hampered by losses: during the flight, the microwave beam expands, and part of the energy passes near the receiver. For better results, huge antennas and precise aiming are needed - conventional power lines are still a more efficient solution. So electricity already knows how to "fly". It is more difficult to ensure an exact landing at the address.

How to catch electricity while moving? Imagine power lines without wires. The energy is converted into a directed beam of microwaves and sent to the receiver. There, the radiation is caught by a rectenna - a special antenna that converts it back into an electric current. It is similar to radio communication, but instead of information it transmits energy. The first rockets appeared in the 60s. The American engineer William Brown demonstrated an unusual experiment: a small helicopter model stayed at a height of 15 meters for ten hours, receiving energy from a microwave source from the ground. Later, engineers learned to transmit tens of kilowatts in this way over a distance of more than a kilometer. However, the widespread use of the technology is hampered by losses: during the flight, the microwave beam expands, and part of the energy passes near the receiver. For better results, huge antennas and precise aiming are needed - conventional power lines are still a more efficient solution. So electricity already knows how to "fly". It is more difficult to ensure an exact landing at the address.