The smallest flying microchips will allow surveillance of people from the air

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Microchips can be equipped with sensors, power supplies, antennas for wireless communication, etc.

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Engineers at Northwestern University in the United States were able to add a new capability to electronic microchips - flight. The new flying microprocessor is the size of a grain of sand and has no motor or motor. The device is capable of aerial surveillance, as well as tracking the spread of viruses. To carry out the flight, the device, called the microflier, uses air currents, rotating like a helicopter.

As the smallest flying structures ever made by man, microchips can also be equipped with ultra-miniature technologies, including sensors, power supplies, antennas for wireless communications, and on-board memory for data storage.

In the examples shown, the team implemented sensors into the devices, a power supply that can harvest energy from the environment, memory, and an antenna that can wirelessly transmit data to a smartphone, tablet, or computer.

In the laboratory, the team equipped one device with various elements to detect particulate matter in the air. In another example, they included pH sensors that can be used to monitor water quality and photo detectors to measure sunlight at different wavelengths.
 
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