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The bottom of a light bulb is a screw.
A light bulb is a simple machine. A light bulb is a screw.A screw is a simple machine.
The screw part or the part that holds it in place in many cases is a screw, so in that case it could be held up as an example of a screw. I doubt however if a light bulb with a bayonet fitting could be held as an example of a screw.
3 one to screw the light bulb in and 2 to throw poo at each other
It takes 4. One to screw in the light bulb, and 3 to talk about how good the old bulb was.
The simple machine that makes up the base of a light-bulb is just a screw. That screw allows you to insert the light-bulb into the base of a lamp. You must make sure to get the grooves of the screw lined up to properly tighten the bulb into place.
The screw socket into which an ordinary light bulb is inserted.
only the top of it
yes
yes
yes
It is not always a screw, but when it is, then just so that it can be attached in the socket of the lamp.