Radio+Waves

RFID Chips (Radio Frequency IDentification Chips)
Most RFID chips contain two parts - An integrated circuit for storing and processing information - An antenna for receiving and transmitting signals
 * An integrated circuit is a circuit of transistors, resistors, and capacitors constructed on a single semiconductor wafer or chip, in which the components are interconnected to perform a given function.

There are two types of RFID chips - Active RFID chips - Passive RFID chips
 * Contain a battery, and can transmit signals independently.
 * These do not have a battery and require an external source.

RFID chips are becoming increasingly popular. Here is some of the current uses of RFID chips: - Timing races - U.S. Passports since 2006 - Credit cards - Product tracking - Logistics - Animal tracking - Human implants - Library books - Museum items

Some possible used for RFID chips in the future are: - Replacing barcodes - Tracking humans - Toll collecting

RFID chips can be blocked and even destroyed - One can block an RFID chip by wrapping in in metal. - Some ways to destroy an RFID chip is to put it in the microwave for five seconds, to hit it with a hammer, or cut off the antenna near the base.

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