Why does The caps of bottles like soda bottle or cold drinks opens up rotating anti clockwise and closes clockwise. Same is with any tube like toothpaste or any ointment.
In: Engineering
It has to do with most people being right handed and those directions being the best for providing enough torque to open the container right handed with a twisting motion. It also matches the standard chosen for screws, which was chosen for similar reason.
It goes back to why are all screws and lids tighten clockwise?
Your bicep muscle. The arm motion to tighten a screw or a lid is called supination. The arm motion counter clockwise is pronation. the muscles that do that are smaller and not as powerful. Your arm will tire less from screwing in 10 screws than unscrewing those same screws, in general.
So in general, anything where you want to exert more force to tighten, its clockwise.
Of course this applies to a right handed person. Everything is opposite for a left handed person.
It’s the same direction as standard screws. Righty tighty, lefty loosey. It makes it more intuitive to use and prevents you from overtightening or loosening by mistake by standardizing the process.
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