Category: Technical

Why My Smoke Alarm Keeps Beeping?

Why My Smoke Alarm Keeps Beeping?

The utility of a smoke alarm cannot be denied whether home or workplace. It cautions you of any unpredictable outbreak of fire in any hidden nook and corner of the house. Typically, a smoke alarm is meant to ring aloud on detection of any smoke or heat. Some times, smoke alarms create a great deal […]

Why People Have Red Eyes in Flash Photographs?

Why People Have Red Eyes in Flash Photographs?

We all have seen photographs in which people have spooky red eyes. These are photos taken at night with a flash. The question is where the red eyes come from. The red color comes from the light that reflects from the retinas in the person’s eyes. A special reflective layer is present in the retina […]