You are not an independent student if: Â¾ You were a âward of the courtâ and were living with your parents, under the monitoring of the criminal legal. system, ordered by the court and/or you were incarcerated. If the above is true, you are considered a dependent student. You will be required to provide your parentsâ.
Smoke detectors are the most common consumer product that uses nuclear technology. They work by putting a source of alpha radiation, usually Americium-241, near an ion detector.hen there is a certain concentration of smoke in the air, the charge drops, and the electronics in the detector sound an alert. This design allows smoke detectors to work for a long time, because Americium-241 has a half-life of 458 years. Source: Teaching Advanced Physics.
Heat detectors are designed to respond to a fire, but not smoke. Using heat detectors instead of smoke detectors should help reduce false alarms from things like cooking. The Lifespan of Smoke and Carbon Monoxide Detectors. Most smoke alarms have a life span between eight and 10 years, and again, replace the batteries every year. A smoke detector with a titanium battery or a hard-wired smoke detector can last 10 years, at which time you would just replace the whole unit. Carbon monoxide detectors last between five and seven years.