A complex machine.
A train is not a simple machine.
unlimited most radio supply outfits will provide an antenna mast to 78 inches, but you can get your machine shop to make a longer mast for a few $$$ extra
A fulcrum is a part of a simple machine, the lever. Without the fulcrum what is left of the simple machine can no longer increase the applied force and is no longer a simple machine.
yes a door knod is a simple machine
a pole on a sailboat is a mast
Mast
It is called the mast
The Mast
masthead
Do you mean the mast?
Is called a mast
Mast
sailboat spars include the: mast boom sprit (if the boat has one)
The Mast
the snark
63'