Optical-based smoke alarms use light instead. They are slightly better at detecting the large smoke particles created by slow, smouldering fires. When such particles enter a chamber in the device, they scatter light from a small light source, which is then picked up by a photoelectric sensor.
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require large amounts of computational resources to run
Women report being slightly more sexually satisfied than men, revealing a surprising gender trend. Relationship satisfaction doesn't fully explain why women are more sexually satisfied than men. Women's tendency to report higher satisfaction might be influenced by socialization and disclosure norms.
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Employees did not have to take a cut in salary, and nor did they have to work longer hours on the four days. Instead, their hours remain at 32-per-week, or eight-per-day.