Re:Which emoji scissors close? (2020)
by tuhriel on Thursday October 27, 2022 @01:51PM
(#33361323)
It definitely has also to do with the force applied. If the blades are setup for the other hand your default grip will puah the blades apart and you can get the paper between the blades
Thats why as a lefty I had major issues with the cheap scissors (which had a ton of play on the hinge) we had in school, bit if you have a decently made scissor the issue is much less severe.
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Re:Which emoji scissors close? (2020)
by BugsJustFindMe on Thursday October 27, 2022 @02:00PM
(#33361437)
Sorry, what you're describing violates Newton's Third Law. The force applied by one side is equal and opposite to the force from the opposing side.
Scissor blades, paper, and force don't care which side is up. Anything other than line of sight is 100% handle ergonomics, and scissors aren't required to have wrong-side-incompatible handles.
Re:Which emoji scissors close? (2020)
by BenjiWiebe on Friday October 28, 2022 @09:24AM
(#33371078)
You're thinking in the wrong axis.
If you open and close scissors the main force is up/down but based on the structure of the hand you also apply a sideways force which twists the blades left/right.
Depending if the top blade (where your thumb goes in) this pushes the blades closer together, or a bit apart. And if the hinge has to much play, this is enough that the paper gets twisted between the scissors.