1) because the unit has a bulbous shape (the outer glass bit) 2) because the unit produces/emits light. The name is an exact description of that it does and its shape.
The is usually a glass mirror at the bottom of the microscope to project light up into the thing where you put the object. Do not cover the glass, or you wont be able to see the material you are studying. Also if the is no sunlight, use a light bulb or something...
Lewis Latimer improved the light bulb.
the highest light bulb is 100
The light bulb was not something that existed and had to be discovered. It was a new thing that was invented.
The glass bulb of a light bulb is known as the globe. It is made from a thin layer of glass to ensure light efficiency and still support the rest of the bulb.
Electricity + Glass = Light bulb
a bulb
A light bulb is named due to it being a bulb-shaped glass object containing a glowing element.
Electricity and a glass bulb
Light+glass
Glass
glass
Glass is the insulator in a light bulb. The base has a heavy piece of glass to separate the ring from the center, and there is a glass support inside the bulb to hold up the filament and separate the wires going to the filament.
A conventional light bulb consists of glass, metal, and gas, but no oil
Nothing, glass is an insulator.
glass