4 ms·
It sounds like you and they have decided that a human hand scissoring may only push inward or outward or neither using one side of the hand but not the other. T
by BugsJustFindMe 4y ago
It sounds like you and they have decided that a human hand scissoring may only push inward or outward or neither using one side of the hand but not the other. That's not true about hands or about scissors though, even poorly constructed scissors. Your thumb and fingers of both hands are equally capable of producing both separating and joining force while closing. You and they have just decided that curling your fingers and pushing your thumb outward is right and the opposite is wrong, but the opposite works too. The scissors don't care and hands support both.
- jameshart 4y agoThe grip strength of curling your fingers into the base of your thumb is stronger than the pinch strength of pressing your thumb against your fingers. Scissor ergonomics aligns the handles so applying the finger-to-base-of-thumb grip to the handles (with the upper handle pressed against the outside of your thumb’s knuckle) pulls the blades together. In order to do that, scissors have to be designed to fit either a left or right hand. To use scissors wrong handed you have to catch the outside of your finger knuckles against the lower handle and pinch the upper handle down with your thumb.