why do most right-hand scissors not work when used with the left hand?
In: Physics
The blades in a scissor is offset from each other, so they can pass each other. The blades themselves are quite thick. This means that the top blade will cover a lot of the paper from view. But that is fine as long as you can see the line you are cutting along. But if you hold a right handed scissor in your left hand the top blade will cover the line you are cutting along. So you do not see where you are cutting.
There are a few other reasons. A lot of scissors are built to shape to your hands making them more comfortable to use. But this obviously assumes you use them in the right hand.
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