they used candles or made a fire .
cuzz its better yoo.
Why do you think? Light bulbs are cheaper, produce more light, don't require matches to light and don't produce waste products such as carbon dioxide. The discovery of electricity made light bulbs possible.
Headlight bulbs, high and low beam, parking light bulbs, signal light bulbs, brake light bulbs, dash light bulbs, interior light bulbs, plate light bulbs, etc.
1
they made people have boyfriends
Incandescent light bulbs and halogen light bulbs are examples of light bulbs that produce heat.
Light Bulbs Unlimited is true to their name by offering almost any kind of light bulb imaginable. Standard bulbs, colored bulbs for parties, and the environmentally friendly LED and compact fluorescent bulb types are all available. Light Bulbs Unlimited even offers antique-style bulbs for people interested in a Victorian look to their lights.
why light bulbs are fragile
In some light bulbs.
Nikolai Tesla did not invent light bulbs. That was done by a number of other people, each improving on previous ideas.
yes because they didn't have to light candles anymore
Light bulbs emit light.