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Air bags inflate when a sensor detects a front-end crash severe enough to trigger their deployment. The sensor sends an electric signal to start a chemical reaction that inflates the air bag with harmless nitrogen gas. All this happens faster than the blink of an eye.

Air bags are safety devices in vehicles that rapidly inflate in the event of a strong front-end collision. A specific sensor within the vehicle detects the severity of the crash, and if it is deemed sufficiently intense, it triggers the deployment of the air bags. The sensor then sends an electric signal to initiate a chemical reaction that quickly fills the air bag with nitrogen gas, which is completely safe for passengers. This entire process occurs within an incredibly short span of time, faster than the human eye can even perceive.

Air bags are safety devices in cars that rapidly inflate in the event of a severe front-end collision. They are activated by a sensor detecting the force of the crash, which then sends an electrical signal. This signal initiates a chemical reaction that causes the air bag to inflate with nitrogen gas, which is not harmful to humans. The entire process occurs incredibly quickly, faster than the time it takes to blink.

Air bags are safety devices in vehicles that deploy during a severe front-end crash. They are activated by a sensor that detects the impact. Once the sensor recognizes the crash as being significant enough, it sends an electric signal. This electric signal initiates a chemical reaction, which rapidly fills the air bag with a safe and non-harmful gas called nitrogen. This entire process occurs extremely quickly, happening in less than the time it takes for us to blink.