Book 13, Question 134
Why Do Night-Lights Stay Dim on Purpose?
Night-lights stay dim on purpose because a little light is all you need! A dim glow lets you see shapes and find the door. It also keeps the room restful.
More fun facts
- Even low levels of light at night may affect health.
- Blue light from electronic devices at night can cost you a good night's sleep.
- Nighttime lights can dim a firefly's flash.
- Some animals near all-night lights may not rest when or as long as they naturally would.
- The color of night lighting can make a big difference to wildlife.
Sources: Science News Explores
Questions kids ask
Why are night-lights dim?
Even a little light at night can affect sleep, so a soft glow is better than bright light.