"Atlantian" (Atlantian)
08/24/2014 at 17:09 • Filed to: None
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"Atlantian" (Atlantian)
08/24/2014 at 17:09 • Filed to: None | 1
| 4 |
I remember when my friends and I would be working on cars and scoff at how ridiculous "righty tighty, lefty loosey" was; Where would the directional arrows be on an imaginary diagram? Top or bottom? How could that indicate clockwise or counter-clockwise?
Well, I was just playing with my hands while waiting for my slow internet to load a video and I realized it was more of a mnemonic that works based on anatomical reasons.
"Righty tighty, lefty loosey" likely came from the fact that it is preferable to drag your thumb away from your torso-axis when you are holding a screwdriver/wrench extension with your pinky closer to your body than your index finger.
Since you want to drag your lone phalanx/metacarpal (thumb) away from the joint (wrist/carpal) and have the four remaining phalanges/metacarpal take the force of being compress rather than the other way around.
PS. I just realized carpal is spelled c-a-r p-a-l since you use your hands to work on your car, so it's your car pal, get it?
Rainbow
> Atlantian
08/24/2014 at 17:26 |
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I just imagine that if it was rolling, it would go in that direction. That's how the whole right/left thing makes sense to me. :P
Devilishprune
> Atlantian
08/24/2014 at 18:11 |
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An arrow with a gentle curve would probably suffice.
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Atlantian
> Devilishprune
08/24/2014 at 18:35 |
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Yeah, if it's over the top of the axis of rotation. What if the person puts it on the bottom?
wallaby13
> Atlantian
08/24/2014 at 20:37 |
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I usually don't have a problem remembering, but even so my Snap-on ratchet is labeled "On" and "Off", makes it idiot proof.