10-20 per household
he invented it so people can see at night
allowed people to see without candles
helped them work at night,see in the dark
yes,so they can see where they will go at night.
any where you look you will se a light bulb. This made things able to be done at night for more squezeen of work hours. probably the light bulb invented the night shift also.
In the olden days without a light bulb, people relied on natural light during the day, candles, oil lamps, or gas lamps at night. This limited their activities after dark and made tasks like reading or working more challenging. Overall, life was slower-paced and people tended to sleep earlier.
A light bulb...LOL jk you cant afford a light bulb so nothing shines in your lamp.
40 watt light bulb. This is obvious. Go do an experiment. -_-
It helped people see better at night and to get to work at night. Unlike candlelight, the newer light didn't hurt people's eyes as much. it was a new invention that helped the world.
A night light bulb typically lasts around 1,000 to 2,000 hours when used continuously. This can vary depending on the type and quality of the bulb.
A wick or candle
Eugene P. McDonnell is credited with inventing the night light in the early 20th century. McDonnell’s creation was initially called the “Mazda night bulb” and was designed to provide a small, gentle light source for navigating at night without disturbing sleep.